Caterpillars codling moth

Braconid wasps parasitize leafroller caterpillars, codling moth caterpillars, leafminer caterpillars, mealy apple aphid, green apple aphid. 

Chalcidid wasps parasitize leafroller eggs and caterpillars, codling moth caterpillars, plum leafroller caterpillars, fruit tortricid caterpillars, San Jose scale, woolly aphids and small ermine moths. 

Granulosis viruses are known to have a beneficial effect in fruit growing. They are ingested by caterpillars (codling moths and leafrollers) with their food and lead to the death of the pests. 

ENEMIES. The codling moth does not actually have any effective enemies, as the caterpillar is very well protected inside the fruit. 

The most important enemies of the codling moth are braconid and ichneumon wasps on pupae and fully grown caterpillars. They are not as effective as they are against leaf rollers, however, as the codling moth larva inside the fruit is very well protected against these parasites. 

At least as important as the live enemies is another enemy - the weather. The young caterpillars - especially those of the first generation - are highly sensitive to climatic variations. Rain, a drop in temperature or a strong wind after the caterpillars hatch is almost always fatal for the caterpillars. Cool and wet springs or summers can drastically reduce the codling moth risk. The effect of climate is thus much greater than that of natural enemies. 

LARVICIDAL EFFECT OF RYANIA (NOT PERMITTED FOR USE IN THE EU AT PRESENT). This alkaloid is also very effective against the larvae of the codling moth. The advantage of Ryania is its broad spectrum of action, allowing control of other caterpillars (tortrix moths, etc.) as well as codling moth. 

Codling moths often produce several generations per growing season, trapping the pupat-ing caterpillars aids control. Remove loose bark and wrap the trunk with a band of corrugated cardboard or burlap. Periodically remove the band and destroy pupae. Also inspect harvest containers for pupae. 

Cause Codling moth larvae. These fat, white or pinkish, V " caterpillars tunnel into nuts and may have departed by the time you discover the damage. Nuts may have a hole filled with what looks like moist sawdust. Control codling moths with superior oil or pyrethrin. Late-blooming cultivars, such as Hartley and Vina", are least suscefjtible to codling moths. For more information, see Fruit with holes surrounded by brown, crumbly excrement" on page 22. 

Protection Offered Use bands to protect trees, vines, and shrubs from ants, codling moth and gypsy moth caterpillars, cutworms, leaf beetles, snails and slugs, and other pests that make daily trips along the trunk. 

Many baculoviruses126 (i.e., insect viruses) are species-specific. They have been used for the successful control of the gypsy moth, velvet bean caterpillar (on 5.9 million ha of soybeans in Brazil), cotton bollworm, codling moth (on apples, pears, and walnuts), rhinoceros beetle, potato tuber moth, sawflies, and porina moth.127 The gypsy moth was introduced into the United States in Massachusetts from Europe in 1869. It defoliates many trees if there are no checks on its population. The war against it has often used diflubenzuron ( dimilin1 ) (11.20), which affects many nontarget species.128... 

Deltamethrin is a crystalline powder, white or slightly beige in color. The formulations include emulsifiable concentrates, wettable powders, ultra-low volume and flowable formulations, and granules. There are no known incompatibilities with other common insecticides and fungicides. It is used as a contact poison to control apple and pear suckers, plum fruit moths, caterpillars on brassicas, pea moths, aphids (apples, plums, hops), winter moths (apples and plums), and codling and tortrix moths (apples). It also is used in control of aphids, mealybugs, scale insects, and whiteflies on glasshouse cucumbers, tomatoes, peppers, potted plants, and ornamentals.9-11... 

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