Peach Tree Pests: Identify and Control the "Worms" Ruining Your Fruit

That "worm" in your peach? It's a maggot—larva of a moth or beetle. Four main culprits target peaches, and each demands a specific strategy.

Pest Identification Guide

Pest	Larva Description	Key Timing
Leaf Rollers (Caterpillars)	Green to yellow-brown, black head	Early season
Peach Twig Borer	Young: white, black head. Mature: ½", cocoa, banded	Pink bud, petal fall, shuck split
Oriental Fruit Moth	Young: white, black head. Mature: pink, brown head, ½"	Pre-bloom (dormant/delayed dormant spray)
Prune Limb / American Plum Borer	White, dark brown head; aging: off-white/pink	2–3 sprays, 6-week intervals, scaffold zone only

Leaf Rollers: Bacillus thuringiensis (Bt) — biological, targets caterpillars.
Peach Twig Borer: Spray at pink bud, petal fall, shuck split, and next-generation egg hatch.
Oriental Fruit Moth: Dormant or delayed-dormant spray before bloom.
Borers: Spray scaffold crotch zone (±1 ft) 2–3× per season if larvae present.

Garlic at tree base repels borers.
Crushed eggshells + Irish Spring soap deter deer.
Raw egg + cayenne spray on leaves (reapply after rain) deters deer on young trees.

Clean fruit = ice cream toppings, peach cobbler, fresh eating. Wash with damp towel. The reward is worth the vigilance.

About Garden: Peach Tree Sudden Leaf Drop: Check for Cold Shock; Starting a 150-Acre Food Forest from Seed: Reality Check; Caterpillars on Redbud and Bagworms on Cedar: Control Guide; Peach Varieties for Pennsylvania: No Dwarf Rootstocks; Worms in Peppers & Cherry Trees: Organic Controls That Work; Fruit Flies in Peppers & Cherries: Sticky Traps, Kaolin Clay & Harvest Timing; Growing Fruit Trees and Bushes: Fresh Harvests from Your Own Yard; Fruit Trees for Every Garden: Selection, Planting, and Long-Term Rewards; Peach Trees: History, Biology & Nutritional Benefits; Managing Peach Scab and Plum Curculio on Home Peach Trees

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