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Caterpillar of Tussock Moth

Caterpillar of Tussock Moth
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They have three long tufts of black hairs on their body two in front, one in back and lighter tufts along their back. The hairs from tussock moth caterpillars break off easily and may cause skin or respiratory irritation. The preferred trees are Douglas-fir and fir, but also include spruce, pine, and larch. The larvae feed mainly on forest trees and are infrequent pests in home landscape. The larvae start at branch tips at the top of the tree and work down, feeding mainly on the new foliage and causing severe defoliation.