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After larvae (or caterpillars) emerge in April, they eat the buds of oak trees and the young leaves inside them. When they are fully grown, the larvae are 12 millimetres (0.47 in) long and "dirty white to light green" with "a pale brown head and black to brown front legs". [2]
[2] [3] The emerging caterpillars, also known as the greenstriped mapleworm, mainly feed on the leaves of their host maple trees, particularly red maple, silver maple, and sugar maple. Since the caterpillars eat the entire leaf blade, in dense populations, caterpillars have been known to defoliate trees, resulting in aesthetic rather than ...
The caterpillars live and feed almost exclusively on oak trees. They may march in procession across the ground between oak trees, and cluster together as they feed on oak leaves. In early summer they build silk nests on the trunks and branches, but not in the leaves, of oak trees, and leave silk trails on the trunks and branches.
The young larvae eat the buds and either destroy developing leaves, or cause leaves to develop with many holes in them. This can severely stress the tree's food reserves, and the older larvae can eat nearly all the remaining leaves, defoliating them. [7] When trees are defoliated two or more years in a row, "extensive tree mortality" can result ...
Caterpillars cause much damage, mainly by eating leaves. The propensity for damage is enhanced by monocultural farming practices, especially where the caterpillar is specifically adapted to the host plant under cultivation. The cotton bollworm causes enormous losses. Other species eat food crops.
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The caterpillars are considered a problem when the larva population explodes in the spring. They can completely consume the foliage of a tree. Trees usually recover from this, refoliating within a month and resuming photosynthesis. Under most circumstances, little lasting damage is caused to the trees; however, the disappearance of foliage is ...
"The trees will re-foliate, so once the leaves are eaten by these caterpillars, healthy trees do have the reserves to push out new leaves." If you have trees that are stressed out from things like ...