Apple leaf fall: what to do before the tree goes dormant

Before apple leaves fall, decide on one regional urea spray only if more than 70% of leaves are still on. Once leaves drop, collect or treat them to lower scab next spring, clean the trunk and basin, mark weak trees for a root check, and keep pruning for the dormant season.

Updated 2026-11-09

See also: Apple guide and Immunity Apple Special.

Leaf fall changes with altitude, variety and the weather that year, so go by your own trees and not by the date. Former Nauni professor SP Bhardwaj writes that deciduous trees stop growing below 12°C, and then the leaves yellow and drop. This page covers only that short period. For the full year, see the apple guide.

Count the leaves, then choose the job

Walk through the orchard and look at several trees, not only the best ones.

What you see	What is useful now	What should wait
More than 70% of leaves on the tree	Decide on one urea spray	Pruning, manure
Leaves yellow, natural fall about to start	Last time for that spray; mark weak trees	Pruning, root drenches
Leaves falling fast or tree bare	Collect or treat fallen leaves; clean the collar; whitewash	Nutrient sprays

While the leaves are on: one nutrition decision

Advice differs by region, so use the figure for your area.

Himachal Pradesh: Bhardwaj says nutrient sprays should go only on orchards with more than 70% of their leaves, and gives urea at 2% (4 kg in 200 litres of water).
Kashmir: a SKUAST-K plant pathologist writes that the university recommended 3 to 4% urea, with 3% for trees with heavy growth. The article says the best time is just before natural leaf fall, in early November.
Uttarakhand: we did not find a published figure for this spray. Ask your KVK before using one.

The same Kashmir article warns against two mistakes. Spraying in early or mid-October can push more growth and delay hardening. And growers in south Kashmir reported bud damage and crop loss from 5% urea on the tree.

Keep your hopes for this spray modest. In one Canadian trial on Jonagold, leaves took up about 19% of the urea that landed on them in three days, in cold weather near 5°C. The stored nitrogen supplied only 3.8% of flower bud nitrogen and did not change flower quality or fruit set. In a Tasmanian trial on Gala, nitrogen given through drip after harvest was taken up less well than nitrogen given before harvest. Those were other countries and other methods, but both suggest this spray cannot make up for a season of poor feeding.

November is also a good month to test soil. Bhardwaj advises a soil test once in four to five years, in October or November. Manure is not urgent. In a CITH trial at Mukteshwar it went on in the last week of December, in a Kinnaur trial in January, and the J&K Horticulture Department gives February to March as the best time in its region.

After the leaves drop: the scab job

The scab fungus survives the winter on fallen leaves. In Kashmir, its spores cause first infection around green tip in mid-March. The leaves you leave on the ground in November can start next year's scab.

The Himachal schedule for 2023 gives two choices: collect the leaves and rot them in a compost pit, or spray 5% urea on the fallen leaves on the orchard floor so they break down fast. The 5% is for leaves on the ground, never for the tree.

The research is mixed, and it helps to know this. A New Hampshire study reported that urea in November, with about 95% of leaves down, cut trapped spores by 50%. Shredding all the litter could cut scab risk by 80 to 90%, but only 50 to 65% when part of the litter was missed. A South African paper notes urea had no effect on scab there. So do not count on urea alone. On narrow terraces where a machine cannot go, raking is the practical way to get the leaves out.

Also clear weeds and infected plant debris, mummified fruit and dead twigs. Bhardwaj suggests burying leaves near the drip basin under thin soil. If scab was bad this year, the compost pit is the safer choice. Either way, keep leaves and soil away from the collar of the tree.

Trunk and basin

Whitewashing is advised in Himachal to protect against temperature swings and insects. The J&K department's FAQ lists it for peach, plum and apricot, but not apple. So in Kashmir, treat it as optional. It may matter most on young trunks. A Kentucky guide explains why young trunks are at risk: winter sun warms the bark, mainly on the south-west side, and a sudden drop in temperature then splits it.

Keep the basin clean, and let water run away from the trunk. Do not flood it. Too much water limits how hardy a tree can become. If a long dry spell comes with cold, evening surface irrigation was suggested by the Nurpur station for its area.

Mark weak trees before the leaves go

Leaf fall is the easiest time to compare trees. A tree that yellowed and dropped leaves well before its neighbours deserves a look. Early leaf fall has other causes too. The Himachal schedule also lists premature leaf fall among leaf disease problems, so check the roots before deciding.

Tie a cloth on the tree now. Later, open the soil and look at the roots. In a study from the Kumaon hills, white root rot turned lateral roots dark brown and covered them with a white fungal mat. Top symptoms appeared only at a very advanced stage, and adult trees survived two to three seasons. A review lists yellowing and falling leaves, then wilting and death.

Timing matters here. The Himachal schedule places basin drenching for white root rot and collar rot in the rainy season. Winter is for opening the soil, exposing infected roots to the sun, cutting out infected parts and painting collar wounds. Take the product from the current year's schedule of your state agricultural university or KVK.

What not to do before dormancy

Do not spray urea in early or mid-October, or at 5% on the tree.
Do not give nutrient sprays to a tree that has already lost most of its leaves.
Do not drench basins in November because you are worried about root rot.
Do not mix fungicides with insecticides or nutrients unless the mix is approved.
Do not start the main pruning.

When pruning should wait

Bhardwaj writes that November and December pruning leaves cuts exposed for too long, and gives February to early March as the best window. The same column warns against pruning in freezing conditions and against removing more than 20 to 25% of the crown in one season. The J&K department gives December to February for temperate fruits generally. Neither gives a November date.

There is one exception. When snow comes with leaves still on, broken limbs need attention. Before forecast snow in November 2019, a SKUAST advisory in Kashmir told growers to reduce canopy load by pruning. Cut the damage, not the whole tree, and clean your tools.

Where Immunity fits

Immunity Apple Special

Made for:

Trees dying in the orchard
Root problems
Low production
Small, poorly coloured fruit

The right amount and timing depend on your crop, its stage and your soil. Every pack carries the label dose.

It is not a fungicide and does not replace these checks.

Made at our own plant at GIDC Shihor, Bhavnagar. We have worked with farmers since 2006.

Send us your district, altitude, tree age, the share of leaves still on the tree, and a photo of any weak tree's collar: +91 99787 91167 (call or WhatsApp) or sales@gujaratbio.com.

Sources

By Gafar Laiya, founder of Gujarat Bio Organics, working with farmers since 2006. Results differ from farm to farm with soil, weather, crop and management. Farmer experiences on this site are their own reports, not a promise of results.

Questions farmers ask

Does urea make apple leaves fall?

The SKUAST-K pathologist writing in Kashmir Reader says urea on its own does not cause defoliation in apple. Some growers spray right after harvest hoping for early leaf drop, and the article says this can prolong growth instead.

Does an apple tree need snow for chilling?

Chilling is counted from air temperature, not from ice. Bhardwaj gives 0 to 7.2°C as the most effective range, and 800 to 1,200 chill units for apple generally, with less for Golden Delicious and Gala types.

When should I take leaf samples for testing?

Bhardwaj advises collecting leaf samples in the second fortnight of August every year. If you missed it this year, plan for next August and use the soil test for now.

Do organic drenches work on white root rot?

In one Himachal Pradesh study on pot and nursery plants, a cow urine decoction gave good disease reduction. That work was not on grown orchard trees, and results in an orchard may differ. Ask your KVK before relying on it.

Is any rootstock safe from white root rot?

A 2020 study from the Kumaon hills found none of the available apple rootstocks to be immune. The authors recommended Paron, a Malus baccata type, as a resistant option. Ask your local nursery or KVK when replanting.

Send us your enquiry

Tell us your crop, the problem and your location, and send a photo if you can. Our team replies on WhatsApp or calls you with what to check, which product suits and where to buy it near you.

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