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nouncausing the leaves of trees and other plants to fall off (as by the use of chemicals)type of:
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nounthe loss of foliagetype of:
Definition that contains defoliation
- birch leaf miner small black sawfly native to Europe but established in eastern United States; larvae mine the leaves of birches causing serious defoliation
- fenusa pusilla small black sawfly native to Europe but established in eastern United States; larvae mine the leaves of birches causing serious defoliation