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The codling moth caterpillars bore into a fruit within 24 hours of hatching from their eggs, usually traveling between 1.5 m to 3 m in search of a fruit. Because they are susceptible to predation, drying up, or being washed away between the period of hatching and boring into a fruit, the caterpillars are prompt in finding a fruit to feed on. [2]
The caterpillars feed mostly on acacia (wattle) trees and Grevillea striata (beefwood). If they have totally defoliated their food tree, the caterpillars migrate to seek out another one, leaving a silk trail. When a caterpillar of the species encounters such a trail it will follow it, especially if there is a pheromone scent associated with it ...
A larva (or caterpillar) eating an oak leaf. Acleris semipurpurana is found in the eastern United States and adjoining portions of southeastern Canada.It has been found in US states ranging from New York, Massachusetts, Connecticut and Pennsylvania in the northeast to Minnesota and Texas in the west, as well as the Canadian province of Ontario.
As the name suggests, the larvae (caterpillars) feed on elm trees , but they can also be found feeding on birch , basswood , and cherry . When the caterpillars are ready, they crawl to the bottom of the host tree, where they crawl underneath the soil and pupate and may overwinter underground if late enough into the year. Vegetable growers ...
The Mullein moth mainly occupies dry and warm places, such as scrublands, dry grasslands, on rocky slopes, and on steppes, as well as parks and gardens. The moth's caterpillar completely strips the leaves of the host plant and can be a horticultural pest. [3] When threatened, the caterpillar freezes and may vomit.
The adult apple sawfly is up to 5 mm (0.2 in) long with a brownish-black head and thorax and a brown abdomen. The larva is a caterpillar-like grub with a brown head and white body, growing to about 10 mm (0.4 in) when fully developed. [2]
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The caterpillar is a serious pest that attacks more than 30 crops. The larva bores into the trunk or branches about 15–25 cm deep. The tunnel created is empty in the day time, but is filled with caterpillar during the night. It damages the bark of the tree resulting in dieback of the stem. Frass is visible in affected areas. [4]