Fruit rot (ber)
Soft, discoloured rot on ripening or stored ber, entering through skin damage and spreading fastest in humid conditions — prompt, gentle harvesting is the main everyday defence.
- Pathogen
- Various fungi, via skin/insect damage
- Starts at
- Skin wounds or over-ripe tissue
- Favoured by
- Humid conditions; damp storage
- Best defence
- Gentle harvest handling; dry storage
Overview
Fruit rot in ber is caused by fungal pathogens that enter fruit through skin damage, insect wounds (including from fruit fly and stone weevil activity) or over-ripe tissue, either while the fruit is still on the tree or after storage. It shows as soft, discoloured, spreading patches that lower the fruit's market grade and, in a bad case, make it unsellable.
Humid conditions favour the fungi directly and also tend to coincide with periods when fruit is more likely to be picked wet or stored without adequate drying — a real risk since ber, unlike most tree fruit, is genuinely grown in a dry, arid belt where growers may not always be watching for a wet-weather disease. Prompt, careful harvesting that avoids bruising and skin damage, along with dry storage, are the main practical defences.
How to identify it
- Soft, discoloured, spreading patches on ripening fruit on the tree or on stored fruit.
- Rot often starts at a point of skin damage — an insect puncture, bruise or over-ripe area.
- Spreads across the fruit within a few days in warm, humid or damp-storage conditions.
- Bruised or unevenly-dried fruit in storage is affected first and worst.
The damage it does
- Lowers the market grade of affected fruit and, in a bad case, makes it unsellable.
- Spreads through a stored batch if damp or damaged fruit is not sorted out promptly.
- A wet or humid harvest window can meaningfully cut the season's sellable fresh-fruit output.
When to act
- Harvest carefully to avoid bruising and skin damage, which is exactly what lets the fungus in.
- Sort out any damaged, bruised or fruit-fly-punctured fruit before storage or sale.
- Ensure fruit is properly dry before storing it in bulk, since damp storage lets rot spread through an otherwise sound batch.
Organic & cultural control
- Gentle harvest handling — soft-lined baskets, avoiding rough tipping or dropping — prevents the skin damage rot enters through.
- Control fruit fly and stone weevil, since their damage creates entry points for rot fungi.
- Sort and remove any damaged or rotting fruit before it is stored or transported with sound fruit.
- Store only properly dried fruit, and keep storage areas dry and well-ventilated.
Chemical control
- A protective fungicide spray timed ahead of a genuinely humid ripening window can help, though sanitation and gentle handling matter more for this crop.
- Observe the pre-harvest interval before picking.
- Confirm the current recommendation with your local KVK, since ber-specific fungicide guidance is thinner than for major fruit crops.
Crops most at risk
Where this problem is called out in our crop guides — open a crop for the full package of practices.
Frequently asked questions
Why does ber fruit rot happen if ber is a dry-climate crop?
Ber's drought hardiness is about the tree surviving dry soil and low rainfall, not about the ripe fruit being immune to fungal rot — a wet spell during flowering or harvest, or damp post-harvest storage, still gives fungal pathogens exactly the moisture they need to enter through skin damage and spread, regardless of how arid the growing belt is overall.
How do I stop ber fruit rot in storage?
Sort out any damaged, bruised or insect-punctured fruit before storing, make sure fruit is properly dry before it goes into bulk storage, and keep storage areas dry and well-ventilated. Damp storage is what lets rot spread from a few affected fruit through an otherwise sound batch.
Are fruit fly and stone weevil connected to ber fruit rot?
Indirectly, yes — the puncture wounds these two pests leave in the fruit skin are common entry points for the fungi that cause fruit rot. Controlling fruit fly and stone weevil is therefore part of fruit rot prevention, not a separate, unrelated task.
Symptoms and control measures follow ICAR, KVK and state agricultural-university package-of-practices; any named chemical is a registered use. Always read the product label and confirm the dose for your crop and zone. editorial policy.