Defoliations [noun]

Therefore, trees deprived of their foliage are liable to perish, and they are injured in proportion to their defoliation.

The aphids were very numerous and unfortunately caused the defoliation of all the currants with the exception of the blacks.

The period of defoliation varies in different countries according to the nature of their climate.

Defoliation of seedlings and bearing trees often occurs in July and August.

Their labour often results in the complete defoliation of the tree.

The partial defoliation of the tree is devitalizing, and the loss of all its leaves commonly kills it.

Caterpillars, grubs, and beetles specialize on defoliation and feed upon the leaves, the lungs of the trees.

This vernal leaf fall makes little show on the forest floor, but it greatly exceeds in number of leaves the autumnal defoliation.

Also shriveled kernels are the result of defoliation by early frosts which may be very local and affect some trees and not others.

Early defoliation appears to be the cause of poor filling in wet seasons.