The Hemlock Moth, also known as the Defoliating Hemlock Moth or Poison Hemlock Moth, is a moth species of the family Oecophoridae (concealer moths).

Once we came across this place that had been defoliated.

During this period many native trees defoliate to save water.

"But you have to realize that the tree is not dead, it's just defoliated."

I do not want them to defoliate my trees.

"But I'm seeing a lot of defoliating and browning out."

Weakened trees can be killed if defoliated several years in a row.

Entire mountains have been defoliated and trees are dying in great numbers.

These pests can defoliate a tree completely if present in large enough numbers.

Leaves may defoliate in the summer and winter but the stems will grow again next season.

Last year forestry officials classified 3.1 million acres in the same area as defoliated.

At least they did before we napalmed and defoliated everything."

An infestation can defoliate and possibly even kill the trees.

Gypsy moths defoliated the state forest between 1978 and 1982.

They are often considered pests due to their habit of defoliating trees.

When the density of the larvae is high enough, the plant can be completely defoliated.

Early in 1962 tests began for defoliating the jungle to deny the enemy cover.

"If the black spot disease has a head start, it can defoliate rosebushes," he said.

The high velocity winds of the storm can defoliate forest and wetlands.

In order to defoliate the lower stories of forest cover, one or more follow-up spray runs were needed.

The larvae feed on the foliage of plants, and can completely defoliate small ones.

When trees are defoliated two or more years in a row, "extensive tree mortality" can result.

The damage caused can be significant and some trees may be completely defoliated.

The leaf will become brittle and the plant will defoliate.

Very small young plants can be completely defoliated.

An infestation of the larvae can defoliate an oak tree.