Sapota bud borer / leaf webber
Caterpillars web young shoot tips and buds into a tangled, browned cluster — repeated attack on new flushes stunts growth and destroys the flowers a flush would have given.
- Pest type
- Shoot- and bud-webbing caterpillar
- Attacks
- Young shoot tips, flower buds, tender leaves
- Worst in
- New vegetative and flowering flushes
- Main risk
- Destroyed flower buds and stunted new growth
Overview
The sapota bud borer / leaf webber is a caterpillar pest that attacks the tender growing points of sapota (chikoo) — young shoot tips, developing buds and tender leaves. The caterpillars spin these tissues together with silk into a webbed mass and feed and shelter inside it, protected from most sprays and predators by the webbing itself.
Because the pest specifically targets new flushes of growth and flowering, repeated attack over a season can stunt shoot development and destroy the flower buds that would have given the next crop, making it a genuinely production-limiting pest rather than a purely cosmetic one. Damage is most visible as a tangled, browned cluster of dead or dying tissue at the tip of an affected shoot.
How to identify it
- Young shoot tips, buds and tender leaves webbed together with silk into a tangled mass.
- A browned, dead or dying cluster of tissue at the tip of an affected shoot.
- Caterpillars feeding and sheltering inside the webbed mass, protected from casual inspection and most sprays.
- New flushes of growth or flowering are the tissues most often attacked.
The damage it does
- Repeated attack on young flushes stunts shoot growth over a season.
- Destroys developing flower buds, directly cutting the crop that flush would have given.
- The webbing itself shields the caterpillars from many contact sprays and from natural predators.
When to act
- Check new shoot flushes regularly for the first sign of webbing, since the caterpillars are protected once well established inside the mass.
- Act promptly on the first webbed shoots — waiting lets the caterpillars mature and the webbing spread to more of the flush.
Organic & cultural control
- Prune out and destroy webbed shoot tips promptly, before the caterpillars inside mature and move to fresh growth.
- Conserve natural predators and parasitic wasps by limiting unnecessary broad-spectrum insecticide spraying.
- Keep the orchard floor and canopy reasonably open, since a dense, shaded canopy holds humidity that favours the pest.
Chemical control
- A recommended insecticide timed to new flush emergence, where webbing is a recurring problem on a particular tree or block.
- Direct any spray at the webbed clusters themselves, since the webbing otherwise shields the caterpillars from contact products.
- Confirm the current recommended product and dose with your local KVK.
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
The tips of my sapota tree's new shoots are webbed together and turning brown. What is this?
That is sapota bud borer / leaf webber damage — caterpillars that spin young shoot tips, buds and tender leaves together with silk and feed sheltered inside the webbed mass. Prune out and destroy the affected shoot tips promptly, before the caterpillars mature and spread to fresh growth.
Why does this pest matter more than an ordinary leaf-eating caterpillar?
Because it specifically targets new shoot tips and developing flower buds rather than mature leaves. Repeated attack on a flush stunts that shoot's growth and destroys the flowers it would have produced, directly cutting the next crop rather than just damaging foliage cosmetically.
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.