Care

Last updated: July 17, 2026 Español Русский

1. Care of the Trunk Circle

Proper maintenance of the soil in the trunk circle is one of the key factors determining the health of the pear tree and the quality of its fruit. The root system of pear, especially on clonal rootstocks, is predominantly located in the upper soil layers (Potapov et al., 2000). Therefore, caring for the soil condition directly affects the availability of moisture, air, and nutrients.

Loosening

The main purpose of loosening is to preserve soil structure, provide oxygen access to roots, and improve water permeability. Pears do not tolerate soil compaction: in dense soil, roots suffer from oxygen starvation, the growth of active absorbing rootlets slows down, and nutrient uptake decreases (Agustí, 2010).

When and how to loosen:

  • In spring, after snowmelt, loosen the trunk circles to a depth of 8–10 cm to break the soil crust and preserve moisture accumulated over winter.
  • In summer, loosen after each watering or heavy rain, as soon as the soil dries slightly. The treatment depth is 5–8 cm to avoid damaging surface roots (Tarasov et al., 1981).
  • In autumn, before winter, dig the trunk circles to a depth of 12–15 cm with soil inversion – this helps destroy overwintering stages of pests and improves water permeability.

It is important to remember: frequent and deep tillage destroys soil structure. Therefore, loosening should be regular but not excessive. The optimal frequency is 4–5 times per season (Potapov et al., 2000).

Mulching

Mulching is one of the most effective techniques for caring for the trunk circle. A layer of organic material performs several functions at once:

  • retains moisture in the soil, reducing the frequency of watering;
  • suppresses weed growth;
  • protects roots from overheating in summer and from freezing in winter;
  • as it gradually decomposes, it enriches the soil with humus and improves its structure (Buckingham, 2010; Cornell Guide, 2003).

Mulching materials:

  • Organic mulch: well‑rotted sawdust, conifer bark, straw, mown grass, compost. A good layer is 5–8 cm. Organic mulch is especially beneficial because it eventually turns into fertile humus (Westwood, 1993).
  • Inorganic mulch: black polyethylene film or agrofabric. They effectively suppress weeds and retain heat in the soil, but do not enrich it with organic matter.

Important rules for mulching:

1. Never place mulch directly against the tree trunk – leave a free space of 10–15 cm in diameter. This prevents bark rotting and reduces the risk of fungal diseases (Cornell Guide, 2003).

2. Ensure that the mulch does not compact into a dense layer – this impairs air exchange. It is advisable to fluff it once a month.

3. On heavy clay soils, mulching should be done with caution: in rainy years it may promote waterlogging and the development of root rots.

Weed Control

Weeds are serious competitors for water and nutrients. In the first 2–3 years after planting, while the pear root system is still weak, weeds can significantly slow down tree growth (Agustí, 2010).

Control methods:

  • Manual weeding – the safest method, especially for young trees. It is important to remove weeds with their roots to prevent regrowth.
  • Mulching – reliably suppresses most annual weeds.
  • Herbicides – used only as a last resort and with great caution. In a hobby garden, it is better to avoid chemicals, but if weeds become uncontrollable, glyphosate‑based products are used. Treatment should be carried out strictly according to the instructions, protecting the trunk and leaves from getting the solution (Westwood, 1993).

The most dangerous are perennial rhizomatous weeds (couch grass, sow thistle, bindweed). They are best removed mechanically, carefully selecting all rhizomes.

Soil Management Systems

Depending on the climate and the gardener's capabilities, the trunk circles and row spacing in a pear orchard can be maintained differently. The most common systems:

1. Black fallow. The soil is kept loose and free of weeds. Advantages: maximum moisture accumulation, good aeration, rapid warming of the soil in spring. Disadvantages: destruction of soil structure, risk of erosion on slopes, increased evaporation of moisture in hot weather (Trunov et al., 2012).

2. Sodding (lawn). Grasses (bluegrass, fescue, clover) are sown in the rows and mowed regularly. The trunk circles are kept under mulch or in black fallow. Advantages: soil is not washed away, its structure improves, grass sod enriches the soil with organic matter. Disadvantages: grass consumes moisture and nutrients, so in arid regions enhanced watering and fertilizing are required (Potapov et al., 2000).

3. Green manure. The rows are sown with fast‑growing crops (mustard, phacelia, vetch, oats), which are then mowed and incorporated into the soil. This is an excellent way to improve fertility, especially on poor soils. Green manures also protect the soil from erosion and suppress weeds (Agustí, 2010).

Recommendation for the hobby garden: The optimal option is a combination of a mulched trunk circle (for moisture retention and weed suppression) and sodded rows (for soil structuring and ease of movement). In arid regions, preference is given to black fallow with mulching, while in humid regions – to sodding.

Summary of the chapter:

Regular loosening, proper mulching, weed control, and a reasonable choice of soil management system create conditions in which the pear root system actively develops, absorbs maximum moisture and nutrition. As a result, the tree becomes healthier, more resistant to stress, and sets a good harvest for the coming year.

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2. Crop Thinning

Many amateur gardeners believe that the more fruit set on a tree, the better. This is a common misconception. Pear, like most fruit crops, in years of abundant flowering sets significantly more ovaries than it is able to "feed" to full maturity. Without the gardener's intervention, the tree itself tries to shed excess fruit during the so‑called June drop, but this is often insufficient to obtain a quality harvest (Agustí, 2010).

Thinning (or fruit thinning) is the deliberate removal of part of the ovaries in order to improve the size, taste, and marketability of the remaining fruit, as well as to ensure regular fruiting from year to year.

When Thinning Is Necessary

Thinning is not always required, but in some cases it becomes a mandatory technique.

Signs that the tree needs help:

  • Excessive flowering. If in spring the tree is covered with a continuous blanket of flowers and the branches are literally studded with ovaries – intervention is necessary.
  • Fruit shrinking. If year after year the fruit becomes smaller, although the variety is known for large fruit – this is a signal of overload.
  • Alternate bearing. When a productive year is followed by an almost empty one – the tree is working on depletion, and thinning helps to smooth out this cycle (Potapov et al., 2000).
  • Weak annual growth. If the current year's shoots have grown shorter than 20–25 cm, this indicates that all resources have gone to the fruit, and the future harvest may be at risk.

Unlike apple trees, pears exhibit alternate bearing to a lesser extent, but overload affects fruit quality no less acutely (Trunov et al., 2012).

Optimal timing:

  • First stage – immediately after flowering, when the ovaries reach the size of a hazelnut (5–7 mm in diameter). At this time, weak, deformed, and damaged ovaries are removed.
  • Main stage – 2–3 weeks after flowering, when the natural June drop occurs. By this time, it becomes clear which ovaries are developing better. Excess is removed, leaving the strongest and most properly positioned ones.
  • In early pear varieties, thinning is completed earlier; in late varieties, it can be carried out until mid‑July (Buckingham, 2010).

Effect on Fruit Quality

Fruit thinning has multiple positive effects, all of which have clear physiological justification.

1. Increase in fruit size.

Each fruit receives nutrients from nearby leaves. The optimal load for pear is 30–40 well‑developed leaves per fruit (Westwood, 1993). If there are more fruits, each lacks assimilates, and they grow small. Removing excess ovaries redistributes the flow of sugars and hormones in favour of the remaining fruits, stimulating cell division and expansion (Agustí, 2010).

2. Improvement of taste and aroma.

The remaining fruits accumulate more sugars and aromatic substances because the ratio of leaf surface to fruit becomes optimal. The fruits become sweeter and more aromatic (Buckingham, 2010).

3. Reduction of alternate bearing.

An overloaded tree spends almost all plastic substances on fruit ripening. As a result, the formation of flower buds for the next year's harvest is sharply reduced or does not occur at all (Potapov et al., 2000). Thinning ensures a balance between generative and vegetative development, and the next year the tree will again please with flowering.

4. Increased resistance to diseases and pests.

Thinning improves air circulation inside the crown, fruits touch each other less, which reduces the risk of spread of fungal infections (e.g., fruit rot) and damage by insects (Cornell Guide, 2003).

5. Prevention of branch breakage.

Excessive load of heavy fruit is a common cause of breakage of skeletal branches, especially in varieties with brittle wood. Thinning reduces the risk of injuries that can shorten the life of the tree (Tarasov et al., 1981).

Technique

Thinning is a job that requires care and patience. But with the right approach, the effort is rewarded with high quality fruit.

Tools:

  • Pruners with thin blades – for cutting pedicels.
  • Long‑handled shears – for hard‑to‑reach places.
  • In a hobby garden, it is acceptable to remove ovaries by hand, lightly pressing the pedicel with a fingernail, but this is only suitable for very small ovaries.

Basic rules:

1. Start from the top of the crown. Fruits on the upper, well‑lit branches are usually of better quality, and it is better to leave them. But in general, removal begins with the weakest and damaged ovaries.

2. Leave the central flower in the inflorescence. In pear clusters, the central flower opens first and is best pollinated (Trunov et al., 2012). It most often forms the largest and most regular fruit. It is this one that should be preserved, removing the lateral ovaries.

3. Maintain distance between fruits. The recommended distance is 10–15 cm for large‑fruited varieties and 8–10 cm for small‑fruited varieties (Buckingham, 2010). These are approximate figures; a more accurate criterion is that after thinning, the fruits should not touch each other but grow and develop freely.

4. Remove fruits with signs of damage. All ovaries with spots, blemishes, deformations, or insect traces should be removed first.

5. Do not remove too many. The optimal load for an adult pear tree is about 200–300 fruits per tree depending on the variety, but the exact number is difficult to determine. It is easier to follow the rule: on each lateral branch 30–40 cm long, 2–3 fruits should remain, no more.

6. Use the "staged thinning" method. For very productive years, two thinnings can be carried out: a light one immediately after flowering, and a more thorough one after 2–3 weeks, when it becomes clear which ovaries are gaining strength.

Important nuance:

In some regions (e.g., with cold springs), pollination may be incomplete, and fewer ovaries are formed. In such cases, thinning is not carried out, or only obviously diseased and ugly fruits are removed.

When Thinning Is Not Needed

  • On young trees (first 3–4 years after planting). Their main task is to build up the crown, and all resources should go to growth.
  • On trees that bear regularly and produce marketable‑sized fruit without intervention.
  • In a year of weak flowering, when there are few ovaries anyway.

Summary of the chapter:

Ovaries thinning is a crucial agronomic technique that allows the gardener to manage fruit quality. By removing excess fruits, we help the tree focus its resources on the best specimens. As a result, we get not a handful of small, sour, and pale pears, but large, juicy, aromatic fruits – exactly what the orchard was planted for. And equally important, the tree remains strong and ready for fruiting in the next year.

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3. Trunk and Bark Care

The trunk (from the root collar to the first skeletal branches) and the bark are not just the "support" and "shell" of the tree. The bark performs vital functions: through the phloem (the inner part of the bark), nutrients synthesized in the leaves move to the roots; the bark protects the cambium – a thin layer of dividing cells responsible for the thickening of the trunk and branches. Damage to the bark disrupts these processes, opens the door to infections, and reduces the winter hardiness of the tree (Westwood, 1993; Potapov et al., 2000). Therefore, regular care of the trunk and bark is a prerequisite for a long and productive life of the pear.

Bark Cleaning

Over time, the bark on old trees dies, peels off, forms cracks and irregularities. These shelters harbour pests (mites, codling moth larvae, bark beetles, overwintering stages of aphids) and pathogens of fungal diseases (Agustí, 2010; Trunov et al., 2012). Dead bark also interferes with the natural thickening of the trunk, creating "constrictions."

When and how to clean:

  • The optimal time is late autumn (after leaf fall, before sustained frosts) or early spring (before bud swelling) (Tarasov et al., 1981).
  • Use a blunt scraper, wire brush, or special garden knife. It is important not to damage the living bark and cambium. Movements should be gentle, top‑down, scraping, without pressure.
  • First spread a dense cloth or film under the tree – all exfoliated bark, lichens, and mosses will fall on it. Then gather and burn it to destroy overwintering pests.
  • After cleaning, all wounds, cracks, and abrasions on the bark must be cleaned down to healthy wood and treated.

Important: Do not scrape off healthy, smooth bark – this opens the way for infections. Only exfoliated, dead areas should be cleaned.

Additionally: Mosses and lichens on the bark (especially on the north side) do not harm the tree by themselves, but they create a moist environment and serve as shelter for pests. They are also removed with a scraper, and the surface is sprayed with a 3–5% solution of iron sulfate for disinfection (Potapov et al., 2000).

Whitewashing of Trunks and Bases of Skeletal Branches

Whitewashing is one of the simplest but very effective preventive measures. Its main goal is to protect the bark from sunburn and sudden temperature fluctuations (Agustí, 2010; Cornell Guide, 2003).

Why it works:

In late winter – early spring, when the sun is already bright and the nights are still cold, the bark on the southern and southwestern sides of the trunk heats up strongly. The cambium cells "wake up" and lose their frost resistance. At night, when the temperature drops sharply, these areas die – so‑called sunburn occurs. They appear as dried, cracked patches of bark that can eventually turn into deep wounds (Westwood, 1993; Potapov et al., 2000). Whitewashing reflects sunlight, preventing the bark from overheating.

When to whitewash:

  • Main whitewashing – late autumn, when leaves have fallen, daytime temperatures are steadily around 0 °C, and nights have light frosts. In the middle belt – October–November, in the south – November–December.
  • Repeat (spring) – in February–March, during a thaw, if the whitewash has been washed off by rain and snow. This is especially important for southern regions.
  • In a hobby garden, whitewashing in early spring (before bud swelling) is acceptable, but autumn is considered the main one.

Composition for whitewashing:

  • Garden version: a mixture of lime (2–3 kg), copper sulfate (200–300 g), and clay (1–2 kg) per bucket of water (10 L). Clay gives the solution viscosity, and copper sulfate provides disinfectant properties.
  • You can use ready‑made garden paint‑whitewashes on a water basis, sold in garden centres. They last long and reflect light well.
  • It is important that the solution is thick enough (like sour cream) so that it does not run off and forms a dense layer.

What and how to whitewash:

  • It is necessary to whitewash the entire trunk (from the ground to the first skeletal branches) and the bases of large skeletal branches (30–50 cm above the fork). For young trees with smooth bark, whitewashing is especially important – their bark is more delicate.
  • The whitewash layer should be continuous, without gaps. The height of whitewashing is about 1.5–1.8 m from the ground.
  • Before whitewashing, it is useful to clean the old bark (as described above).

Protection from Damage

Pear bark is a tasty morsel for many animals, and it also suffers from mechanical impacts.

Protection from rodents (hares, mice, voles):

In winter, when other food is scarce, rodents gnaw the bark of young trees, especially at the snow cover level. This can lead to ring damage to the trunk and death of the tree (Buckingham, 2010; Cornell Guide, 2003).

  • Wrapping trunks. Use fine‑mesh wire netting, pine or spruce branches (tied with needles down), thick paper, nylon stockings, special protective covers made of plastic or metal mesh.
  • Protection height – up to the level that snow can reach (usually 80–100 cm from the ground). The netting should be buried in the soil by 5–10 cm so that mice cannot dig under it from below.
  • Chemical repellents (with a strong odour) are used with caution, strictly according to instructions, so as not to harm the tree.

Protection from sunburn and frost cracks:

In addition to whitewashing, prevention includes:

  • Moderate formative pruning, so that the crown is not too dense and light does not fall on the trunk at a right angle (especially for southern sides).
  • In harsh northern regions, trunks of young trees are shaded with light material (e.g., white non‑woven covering material) for winter.

Protection from mechanical damage:

  • Bark injuries often occur when carelessly using a lawn mower, trimmer, cultivator, as well as from impacts (e.g., when transporting the harvest).
  • To avoid this, the trunk circle should always be mulched, and the grass around it mowed. If there is a risk of contact with machinery, install a fence of stakes or use a protective plastic cover on the trunk.
  • Any wounds on the bark (from impacts, broken branches) must be immediately cleaned and treated (see below).

Treatment of Wounds and Bark Damage

If the bark is still damaged (frost crack, abrasion, torn bark), the wound cannot be left open. Through it, fungal spores and bacteria penetrate into the wood, causing gumming, rot, and weakening of the tree (Trunov et al., 2012).

Procedure:

1. Cleaning. With a sharp knife, carefully but decisively remove all loose and dead pieces of bark, leaving only healthy tissue. The edges of the wound should be smooth.

2. Disinfection. The wound is treated with a 1–3% solution of copper sulfate, 3% potassium permanganate, or a special garden disinfectant.

3. Sealing. After the wound has dried (after 1–2 days), cover it with garden pitch or a special sealing paste (e.g., "RanNet"). It is important that the sealant is plastic, does not crack, and protects the wound from moisture and air until healing begins.

  • For large wounds, use a clay mash with cow manure (heals well) or special garden sealants.
  • For very large damage (more than 5 cm in diameter), it is recommended to wrap the wound with dark polyethylene film (to create a greenhouse effect) for 2–3 weeks in spring to accelerate callus formation (wound healing).

Special attention:

  • In pear, as in all pome fruits, after bark damage, gumming often begins – the outflow of a thick yellowish or brownish liquid. This is a sign of severe stress. Such wounds must be cleaned especially thoroughly and disinfected well, otherwise they will remain wet and not heal.
  • If the wound encircles the trunk completely – this is very serious. In a hobby garden, you can try to save the tree by bridge grafting (with cuttings across the wound), but this is advanced technique. In most cases, ring damage leads to the death of the aboveground part (Tarasov et al., 1981).

Prevention of Trunk and Bark Diseases

Some fungal diseases (e.g., pathogens of fruit tree canker – Nectria, Valsa, Phytophthora) affect precisely the bark of the trunk and the bases of skeletal branches, causing ulcers and necrosis (Agustí, 2010; Trunov et al., 2012).

Preventive measures:

  • Do not wet the trunk. During watering (especially sprinkling), try to prevent water from getting on the trunk and stagnating at the root collar. Wet bark is an ideal environment for pathogens.
  • Avoid deep planting. The root collar (the place where roots transition into the trunk) should be at ground level. Deep planting promotes the development of root rots and trunk infections (Potapov et al., 2000).
  • Timely sanitary pruning (Chapter 5) and removal of diseased branches reduce the overall infectious background.
  • Spraying with fungicides (e.g., Bordeaux mixture or copper sulfate) on bare wood in early spring and late autumn also disinfects the bark surface.

Summary of the chapter:

The trunk and bark are the "circulatory system" and "skin" of the tree. Regular cleaning of dead bark, timely whitewashing, protection from rodents and mechanical damage, as well as competent treatment of wounds – guarantee that the tree will remain healthy, grow well, and bear abundantly for decades. Prevention is always easier and more effective than fighting advanced diseases or recovering from injuries.

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4. Supporting Fruiting Branches

In pear, especially in old trees and abundantly fruiting varieties, the wood can be brittle, and the branches not strong enough to withstand the weight of swelling fruits. Add gusts of wind, rains, and the risk of breaking skeletal and semi‑skeletal branches becomes quite real (Agustí, 2010; Westwood, 1993). Breakage is not just a loss of part of the harvest. It is a serious open wound through which pathogens enter the tree, which can lead to gumming, rot, and gradual weakening, and sometimes even death of a whole branch or even the tree (Potapov et al., 2000). Therefore, timely support of fruiting branches is not a whim but a necessary measure to preserve the health and productivity of the pear.

When Support Is Needed

The need for support should be assessed in advance, before the branches begin to split under the weight of the harvest. The main signs:

  • Strong sagging of branches. If under the weight of fruits the branches have noticeably dropped, and their ends touch the ground or other branches – this is a signal.
  • Appearance of cracks in forks. Particularly dangerous are cracks at the point where large branches diverge from the trunk.
  • Abundant fruiting of large‑fruited varieties. Varieties with fruits over 150–200 g require mandatory support (Buckingham, 2010).
  • Age of the tree. In old trees, wood loses elasticity, branches become brittle, and support is needed even with an average harvest.
  • Adverse weather conditions. If strong winds or downpours are forecast during the ripening period, it is better to be safe.

It is better to install supports in advance, at the beginning of fruit filling (when they reach the size of a walnut), rather than to do it in a hurry when the branch has already cracked.

Types of Support

In horticultural practice, several methods of supporting fruiting branches are used. The choice depends on the size of the branch, its position, the height of the tree, and the available materials.

1. Vertical props (crotches)

This is the most common and reliable method. A sturdy support is placed under the branch, taking part of the weight. Use:

  • Forked poles – strong, straight poles with a fork at the upper end that embraces the branch, preventing it from slipping.
  • Straight poles – with a V‑shaped or cup‑shaped attachment at the upper end, or with a nailed stop bar.
  • Metal or plastic stands with adjustable height and a special branch grip (available in garden centres).

The material for props should be strong but not too rough, so as not to damage the bark. It is better to use hardwood (oak, ash, beech) or treated softwood (Agustí, 2010). The upper end of the pole should be wrapped with soft cloth or pieces of nylon stocking to prevent bark injury.

2. Tying to a trellis or wire

In intensive orchards with dwarf and semi‑dwarf rootstocks, trees are often grown on trellises. In this case, fruiting branches are tied to horizontal wire rows. This is convenient for both support and crown formation (Trunov et al., 2012).

In a hobby garden, you can use a single wire stretched at a height of 2–2.5 m between posts. The most loaded branches are tied to it.

3. Tying to neighbouring branches

Sometimes a strong branch can be lifted and tied to a higher, stronger branch (or to the central leader). This is a simple technique, but it requires caution to avoid twisting and damaging the branches.

4. Tying to a stake driven into the ground

For low branches or branches growing close to the ground (especially in varieties with drooping crowns), you can drive a stake nearby and tie the branch to it at a height of 50–60 cm.

5. Using nets and hammocks

In commercial orchards, nets suspended from supports are sometimes used to support entire branches. In a hobby garden, this is expensive and labour‑intensive, but for an individual particularly valuable branch, you can use a hammock made of coarse burlap or old nylon netting suspended from upper branches.

Technique for Installing Supports

A correctly installed support securely fixes the branch, does not injure it, and does not interfere with tree care.

Basic rules:

1. Determine the centre of gravity. The support is placed at the point where the branch bends most, or slightly closer to the periphery to distribute the load. For long branches, several supports may be required (Westwood, 1993).

2. Set the support at an angle. The pole should not stand strictly vertically, but with a slight incline toward the load (upward and outward). This prevents slipping and reduces pressure on the bark.

3. Bury the end in the ground. The lower end of the pole is buried 10–15 cm into the soil to prevent it from sliding and falling. If the soil is loose, you can dig in a small stone or board as a base for the pole.

4. Do not damage roots. Try not to drive the support into the zone of active root location (usually the crown projection). For mature trees, this is difficult, so you can use a weighted base (e.g., a concrete block with a hole for the pole) or drive the stake next to the tree without hitting roots.

5. Installing the fork. The upper fork should gently embrace the branch from below, without squeezing it. Be sure to wrap the ends of the fork with soft material (foam polyethylene, cloth) or use rubber pads.

6. Number of supports. For large fruiting trees, the number of supports can reach several dozen (especially for varieties with large fruits). Usually, one support per 10–15 kg of fruit is used as a guide (Potapov et al., 2000).

Tying Fruiting Branches

Tying is the fixation of a branch to a support (pole, wire, neighbouring branch). It can be an independent method or complement props.

Materials for tying:

  • Soft cloth cut into strips (old sheet, calico).
  • Nylon stockings (do not cut into the bark, durable).
  • Garden twine or synthetic cord, but with a cloth pad under the knot.
  • Special plastic clips and ties for plant tying.
  • Insulated wire – used only as a frame, not for direct tying.

Rules for tying:

  • The branch is tied loosely, in a "figure eight" (a loop between the support and the branch) so as not to pinch the bark and disrupt sap flow (Tarasov et al., 1981).
  • The knot should not be too tight. Leave a gap so the branch can thicken.
  • Regularly check the ties (at least once a season), especially on young fast‑growing branches – they can outgrow and cut into the bark. Loosen or retie as needed.
  • When tying to wire, use a sliding knot or special tying tapes that do not chafe the bark when moving in the wind.

Prevention of Breakage

The best way to deal with breakage is prevention. Prevention begins from the moment the orchard is planted and continues throughout the life of the tree.

1. Proper crown formation with wide branch angles.

The main cause of branch breakage is sharp angles of departure from the trunk (less than 40–45°). In such forks, bark is pinched, forming a weak mechanical connection that easily tears under load (Westwood, 1993; Trunov et al., 2012). When forming the crown (in the first 4–6 years), it is necessary to:

  • Select branches with branch angles of 50–60°.
  • Remove competitive shoots with sharp angles.
  • Use spreaders (special planks with pointed ends) to increase branch angles (Tarasov et al., 1981).
  • In pear, "forks" (two equally developed leaders) often form. One of them should be removed or strongly shortened to keep a single leader.

2. Crop thinning (Chapter 2).

Reducing the fruit load is the most effective way to prevent branch overloading and breakage. Do not spare the ovaries: leave as many as the branch can withstand without risk.

3. Timely sanitary pruning.

Removing dry, diseased, and weak branches, as well as branches with signs of cracking or rot, reduces the total weight of the crown and improves its aeration.

4. Wind protection.

Wind load significantly increases the risk of breakage. In open areas, it is advisable to create windbreak strips of tall fast‑growing species (e.g., poplar, birch, spruce) or install artificial windbreak screens (Agustí, 2010). For a single tree, you can install a shield of dense fabric or netting on the leeward side.

5. Using supports as part of the system.

Even in properly formed trees, supports are necessary in productive years. Include their installation in the annual orchard care plan.

Peculiarities for pear:

  • Pear, especially on quince rootstock, may have increased wood brittleness (Trunov et al., 2012). Therefore, support for pear is needed more often than for apple.
  • Varieties with large fruits (Bere Bosc, Curé, Dessertnaya) require supports almost every year.
  • Old pear trees with massive crowns need regular supportive pruning and a support system that may include metal cables tightening forks (these are already complex engineering solutions used in horticulture).

Summary of the chapter:

Supporting fruiting branches is not a one‑time action but a regular procedure that saves the harvest and the tree itself. Correctly installed supports, careful tying, and preventive measures (crown formation, thinning) allow the pear to withstand any load without harm to health and give the gardener large, tasty fruits every year. Caring for branches is caring for the future of your orchard.

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5. Sanitary Measures

Sanitary measures are preventive "cleaning" in the orchard that prevents diseases and pests from establishing and spreading. Many infections and insects overwinter in fallen leaves, mummified fruits, dry branches, and bark cracks (Agustí, 2010; Cornell Guide, 2003). By removing these sources of infection, you significantly reduce the risk of disease outbreaks in the next season and reduce the need for chemical treatments. Sanitary measures are simple, do not require large expenditures, but give a tangible result.

Removal of Dry and Damaged Branches

Dry, diseased, broken, and frozen branches are not only an aesthetic defect. They become "entry gates" for fungi (pathogens of tinder fungi, cytosporosis, black cancer, moniliosis) and a place for overwintering of many pests (bark beetles, goldtail, leaf rollers) (Westwood, 1993; Trunov et al., 2012).

When to carry out:

  • Sanitary pruning is performed throughout the growing season, as soon as diseased or damaged branches are found. Do not postpone until winter – infection may have time to spread.
  • Particularly important is autumn sanitary pruning after leaf fall, when all problem areas are clearly visible.
  • In regions with harsh winters, spring additional pruning is carried out, after the results of winter damage (frozen buds, cracks) become noticeable.

What to remove:

  • Dry branches – regardless of their size. Dry wood is an ideal substrate for saprophytic fungi (tinder fungi), which then move to living wood (Potapov et al., 2000).
  • Branches with signs of disease – with bark necrosis, gumming, cankers, brown spots, mummified fruits remaining on the branches.
  • Broken and cracked branches – especially those with open wounds. They will not recover but will attract pests.
  • Shoots and water sprouts (fat shoots) – they thicken the crown, worsen lighting, and create favourable conditions for fungi (Agustí, 2010).
  • Branches growing inward or crossing – they rub against each other, forming wounds that do not heal.

Removal technique:

  • All cuts with a diameter of more than 1–1.5 cm should be cleaned with a sharp knife to a smooth surface and covered with garden pitch or special paste (Tarasov et al., 1981).
  • Remove branches "on the ring" – along the edge of the annular swelling at the base of the branch, where tissues heal well. Do not leave stubs.
  • If the branch is affected by disease down to the base, cut it off completely, capturing part of healthy tissue (5–10 cm below the affected area) to ensure removal of the infection.
  • When pruning in wet weather (or during active sap flow), disinfect the tool after each cut (with alcohol, 1% potassium permanganate solution, or a special solution) to avoid transferring infection from a diseased branch to a healthy one.
  • Cut diseased branches immediately burn (do not put in compost!) (Buckingham, 2010).

Collection of Fallen Fruit

Fallen fruit (windfalls) are fruits that have fallen prematurely. Most often these are fruits damaged by pests (codling moth, apple weevil) or affected by fungal diseases (moniliosis, fruit rot). Leaving them under the tree creates an ideal source of infection for the next year.

When to collect:

  • Regularly, throughout the entire ripening period and after it. Frequency – at least once a week, and in hot and humid weather – more often (Cornell Guide, 2003).
  • If there is a lot of windfall, it is collected daily (especially for early varieties that may drop en masse).

What to do with windfalls:

  • Healthy‑looking fallen fruits (e.g., simply overripe, fallen by wind) can be used for processing (juice, compote) or for animal feed, but not left in the garden.
  • Fruits with signs of damage (rot, wormholes, spots)collect and immediately destroy: bury in a deep hole (at least 0.5 m) or burn. It is strictly forbidden to put them in the compost heap – spores and larvae may survive and later spread around the site (Potapov et al., 2000).
  • If there is a lot of windfall, you can collect it in bags and take it outside the site for burial.

Important: Do not leave windfalls for winter! Mummified fruits remaining on branches or on the ground are the main source of spring infection with moniliosis (fruit rot) (Agustí, 2010).

Removal of Plant Residues

Leaves, mown grass, small twigs left on the soil can also serve as shelter for pests and diseases. Some pathogens (e.g., pear scab) overwinter precisely on fallen leaves.

Autumn cleanup:

  • Leaves should be raked and removed from the trunk circle. In ideal – collect all leaves from under the trees and from the rows.
  • Mown grass and green manure tops should also be removed or thoroughly chopped and buried in the soil during digging to accelerate decomposition. For winter, do not leave a thick layer of organic matter on the surface – this is shelter for mice and voles (Buckingham, 2010).
  • Small twigs after pruning should be collected and disposed of. They can be shredded and used for paths or mulch, but first make sure they are not affected by diseases.

Options for using leaves:

  • In a hobby garden, you can not remove all the foliage but incorporate it into the soil during autumn digging (if the leaves are healthy). This improves soil structure (Westwood, 1993). But in such case, the site must be free from diseases.
  • If there is suspicion of scab, the leaves must be burned or removed.

Prevention of thickening:

  • Perform crown thinning (Chapter 3) to ensure branches and leaves are ventilated. A dense crown stays wet longer, promoting fungal development.
  • Do not allow weeds to grow in the trunk circle – they create shade and increased humidity, and also serve as an additional "bridge" for infections.

Tool disinfection after sanitary work:

After removing diseased branches and leaves, always disinfect all tools (pruners, shears, saws). This will prevent the transfer of infection to healthy trees during subsequent work.

Additional measures:

  • Autumn spraying with a 3–5% solution of copper or iron sulfate (on bare wood and on the ground) helps destroy fungal spores on the bark and soil surface (Trunov et al., 2012). This complements sanitary cleaning.
  • Whitewashing the trunk (Chapter 3) also belongs to sanitary measures – it disinfects cracks in the bark and protects against winter infections.

Summary of the chapter:

Regular sanitary "cleaning" of the orchard is the most accessible and effective way to reduce the burden of diseases and pests. Removing diseased branches, collecting windfalls, and disposing of plant residues deprive pathogens and insects of winter shelters. Cleanliness in the garden is not just order; it is the health of your trees and the key to a stable harvest.

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6. Tree Health Monitoring

Regular monitoring of the condition of the pear tree is not just observation but systematic diagnostics that allows the gardener to notice deviations in development in time and take corrective actions. Many serious problems (fungal infections, pest damage, mineral nutrition disorders, root system damage) in the early stages are almost asymptomatic or show mild signs that are easy to miss (Westwood, 1993; Potapov et al., 2000). Regular inspection combined with keeping simple records helps to identify problems while they are still correctable and avoid crop loss or even tree death.

Regular Inspections

Tree inspection should become as habitual a part of garden work as watering or pruning. The main thing is to do it systematically and know what to look for.

When to inspect:

  • In spring (immediately after snowmelt, before bud break, then at the green cone stage, during flowering, and after it). Spring inspections allow assessment of overwintering, identification of frost damage, and pest activity.
  • In summer (during fruit growth, 3–4 weeks before harvest). Check fruit development, appearance of diseases, and leaf condition.
  • In autumn (after harvest, before leaf fall). Assess the overall condition of the tree, the formation of flower buds for the next year, and preparation for winter.
  • Periodically (once every 2–3 weeks, and more often during critical periods) conduct a visual walkthrough: a quick assessment of leaf condition, visible damage, windfalls.

What and how to inspect:

A proper inspection is a sequential check of all parts of the tree, starting from the root collar to the top.

1. Trunk and root collar

  • Check for mechanical damage, cracks, wounds, bark pressure, signs of gumming (especially at the base).
  • Assess the condition of the bark: any unnatural colour changes (darkening, silvering), peeling, swelling, growths.
  • The root collar is the most vulnerable spot. Make sure it is not buried (not covered with soil), not rotting (if the bark is wet and easily peels off, this is a sign of rot).

2. Skeletal branches and forks

  • Inspect the forks (places where branches depart from the trunk). These are high‑risk zones for breakage and fungal attack. Look for cracks, accumulations of dead bark, signs of gumming.
  • Assess the overall condition of the branches: any dry, broken, or diseased parts.
  • Check if the branches are overloaded with fruit (for this, summer inspections are needed).

3. Leaves

  • Leaves are the "mirror" of the plant's condition. Their appearance gives the gardener more information than any other organ (Agustí, 2010).
  • Signs of element deficiency:
  • Chlorosis (yellowing of leaves) between veins (while veins remain green) – often indicates a lack of iron or magnesium (especially on calcareous soils) (Westwood, 1993).
  • Small, pale leaves with a reddish tint – possible phosphorus deficiency.
  • Marginal burn or drying of leaf edges – a sign of potassium deficiency.
  • Signs of diseases:
  • Brown or black spots on leaves – scab, septoria.
  • White powdery coating (powdery mildew) – fungal disease.
  • Rusty spots on the upper side of leaves – pear rust.
  • Signs of pests: curled leaves (aphids), mines (internal tunnels), gnaw marks (caterpillars), small speckles on leaves (mites).
  • Also assess the overall size of leaves. If they are smaller than in previous years, this may be due to crop overload, insufficient watering, or nutritional disorders.

4. Fruits

  • During ripening, check fruits for spots, rot, wormholes, deformations.
  • Evaluate fruit size in comparison with what is typical for the variety. If there is strong shrinking, several possible causes include overload, lack of moisture, nutrient deficiency, or pest damage (e.g., codling moth) (Trunov et al., 2012).
  • Pay attention to colour development and ripening times. If fruits ripen later than usual, this may indicate a lack of heat, light, or overload.
  • Regularly collect and inspect windfalls – this is one of the earliest signals of problems.

5. Annual growth

  • Evaluate the length of the current year's shoots. For a fruiting pear, normal growth length is 20–40 cm depending on the variety and age (Potapov et al., 2000; Cornell Guide, 2003).
  • If growth is shorter than 20 cm, this is a signal of tree weakening. Possible causes: crop overload, nutritional deficiency, drought, root damage, diseases.
  • If growth is too long (more than 60–70 cm), the tree is "fattening" – growing too actively at the expense of fruiting. This is usually due to excess nitrogen or improper pruning.

6. Root system (indirectly)

  • Without digging up roots, you can indirectly assess their condition by the state of the aboveground part and the soil.
  • If in hot weather leaves wilt and after watering they recover but not fully – possibly the roots are damaged or the soil structure is disturbed.
  • If in spring the tree leafs out late and growth is weak – possible root problems (e.g., freezing or damage by rodents).
  • The soil in the trunk circle should be loose, moist, but not waterlogged. If there is standing water – roots suffer from lack of oxygen (Westwood, 1993).

Keeping observation records

Keeping a simple garden diary is a powerful monitoring tool. Record:

  • Dates of inspections.
  • Weather conditions of the season (temperature, precipitation, frosts).
  • Nature of flowering, fruit set, fruit size, yield.
  • Timing of appearance and spread of diseases and pests.
  • Measures taken (treatments, fertilizing, pruning, installation of supports).

By comparing records from year to year, you can identify trends and adjust care in time. For example, if for two consecutive years there is premature yellowing of leaves in midsummer, this may indicate a potassium deficiency or root system problems that require intervention.

Early Problem Detection

Early diagnosis is the ability to "read" the signals the tree sends and distinguish harmless deviations from alarming symptoms.

Main alarm signals:

  • Premature yellowing and leaf fall in summer – possible causes: drought, waterlogging, root damage, nutritional deficiency (especially nitrogen), fungal diseases (scab).
  • Wilting of leaves even with sufficient moisture – may indicate damage to the bark or roots (e.g., ring damage to the root collar, damage to the vascular system).
  • Appearance of gumming – exudation of a thick, sticky liquid on the bark. This is the tree's reaction to stress (bark damage, fungal infection, rootstock‑scion incompatibility). The cause must be identified and eliminated (Trunov et al., 2012).
  • Bark necrosis – appearance of brown or black areas of dying bark. Often a sign of fungal diseases (cytosporosis, black cancer).
  • Browning of fruit core when cut – may indicate boron or calcium deficiency, or a genetic predisposition of the variety (Westwood, 1993).
  • Leaf colour change with green veins remaining (chlorosis) – almost always associated with iron deficiency, especially on calcareous soils.
  • Weak flowering or absence of flowers after several years of active fruiting – may be a sign of alternate bearing, tree exhaustion, or damage to flower buds in winter.
  • Massive ovary drop – possible causes: poor pollination, overload, moisture deficiency, frost damage, nutritional deficiency.

What to do when alarming symptoms are detected:

1. Clarify the diagnosis. Use reference books on diseases and pests, consult with experienced gardeners or agronomists. Do not start treatment without knowing the exact cause.

2. Take measures. If it is a disease – treat with a fungicide (observing the waiting period before harvest). If it is a pest – with an insecticide or biological preparation. If it is an element deficiency – carry out foliar feeding.

3. Record the observation. Note in the diary when the problem was detected, what measures were taken, and how the tree responded.

Preparation for the Next Season

The final stage of monitoring is assessment of the past season and preparation for the future. This allows systematizing experience and making care more effective.

Autumn‑winter assessment:

  • Assess the condition of the tree after fruiting: is it overloaded, is it weakened.
  • Check for dry and diseased branches, cracks, hollows. If necessary, carry out sanitary pruning.
  • Assess the formation of flower buds on annual growth. If there are few of them – possibly the tree was overloaded this year, and next season the harvest will be weak. This is normal with alternate bearing, but care should be planned accordingly.
  • Check the condition of supports and props. Repair or replace broken ones.
  • Prepare tools for the new season: sharpen pruners and knives, check availability of necessary preparations and fertilizers.

Planning work for the next year:

  • Based on this year's records, plan what measures should be taken in the next season: strengthen fertilizing, carry out corrective pruning, treat against specific pests.
  • If there was a strong outbreak of disease this year, plan preventive spraying early in spring (before bud break).
  • Consider whether to change the timing or technology of care (e.g., increase watering, change the soil management system).

Preparing for winter:

  • Carry out moisture‑charging irrigation (if autumn is dry) – this helps the tree overwinter (Buckingham, 2010).
  • Mulch the trunk circle (with a 5–8 cm layer) – to protect roots from freezing.
  • Perform whitewashing (if not done earlier) to protect against sunburn (Chapter 3).
  • Remove all leaves and plant residues (Chapter 5).

Summary of the chapter and general conclusion:

Systematic monitoring of tree condition is the basis of competent care, allowing the gardener to move from reactive response to problems to proactive management of orchard health. Regular inspections, the ability to read plant signals, and keeping simple records make care more conscious and effective.

The combination of all six described components – proper trunk circle maintenance, competent crop thinning, care for bark and trunk, timely support of fruiting branches, regular sanitary measures, and constant monitoring – creates the foundation on which a long, healthy, and highly productive life of a pear tree is built. Remember: pear, like any living organism, responds to care and attention. By devoting time and knowledge to the tree, you receive a generous harvest of large, aromatic, and sweet fruits that will delight you and your family for many years.

References

  1. (2003). ‘Tree Fruits’, in Cornell Guide to Growing Fruit at Home. Ithaca, NY: Cornell Cooperative Extension, pp. 14-42.
  2. Agusti, M. (2010). ‘El medio’, in Fruticultura. Madrid, Spain: Ediciones Mundi-Prensa, pp. 49-70.
  3. Agusti, M. (2010). ‘Tecnicas de cultivo’, in Fruticultura. Madrid, Spain: Ediciones Mundi-Prensa, pp. 207-246.
  4. Buckingham, A. (2010). ‘The Fruit Gardener’, in Grow Fruit. New York, NY: DK Publishing, pp. 10-40.
  5. Westwood, M.Neil. (1993). ‘Cultural Practices’, in Temperate-zone. Pomology. Physiology and Culture. Portland, Oregon: Timber Press, pp. 178-216.
  6. Westwood, M.Neil. (1993). ‘Establishing the Planting’, in Temperate-zone. Pomology. Physiology and Culture. Portland, Oregon: Timber Press, pp. 159-177.
  7. Кривко, Н.П. (2014). ‘Обрезка и формирование кроны плодовых деревьев [Pruning and shaping the crown of fruit trees]’, in Плодоводство [Fruit growing]. Санкт-Петербург: Лань, pp. 125-157.
  8. Потапов, В.А., Фаустов, В.В., Пильщикова, Ф.Н. (2000). ‘Биологические основы плодоводства [Biological foundations of fruit growing]’, in Плодоводство [Fruit growing]. Москва: Колос, pp. 3-124.
  9. Потапов, В.А., Фаустов, В.В., Пильщикова, Ф.Н. (2000). ‘Плодовый и ягодный питомник [Fruit and berry nursery]’, in Плодоводство [Fruit growing]. Москва: Колос, pp. 125-206.
  10. Потапов, В.А., Фаустов, В.В., Пильщикова, Ф.Н. (2000). ‘Плодовый сад [Orchard]’, in Плодоводство [Fruit growing]. Москва: Колос, pp. 207-369.
  11. Тарасов, В.М., Фаустов, В.В., Никиточкина, Т.Д. (1981). ‘Обрезка яблони и груши [Pruning apple and pear trees]’, in Практикум по плодоводству [Fruit growing workshop]. Москва: Колос, pp. 274-285.
  12. Тарасов, В.М., Фаустов, В.В., Никиточкина, Т.Д. (1981). ‘Приемы формирования кроны плодовых растений [Techniques for shaping the crown of fruit trees Plants]’, in Практикум по плодоводству [Fruit growing workshop]. Москва: Колос, pp. 258-265.
  13. Тарасов, В.М., Фаустов, В.В., Никиточкина, Т.Д. (1981). ‘Системы формирования кроны в интенсивных садах на клоновых подвоях [Systems for shaping crowns in intensive orchards on clonal rootstocks]’, in Практикум по плодоводству [Fruit growing workshop]. Москва: Колос, pp. 285-291.
  14. Тарасов, В.М., Фаустов, В.В., Никиточкина, Т.Д. (1981). ‘Системы формирования яблони и груши в садах на сильнорослых подвоях [Systems for shaping apple and pear trees in orchards on vigorous rootstocks]’, in Практикум по плодоводству [Fruit growing workshop]. Москва: Колос, pp. 265-274.
  15. Трунов, Ю.В., Самощенков, Е.Г., Дорошенко, Т.Н. (2012). ‘Семечковые культуры [Pome crops]’, in Плодоводство [Fruit growing]. Москва: КолосС, pp. 329-347.