Defoliators were again the most visible forest pests in 1985. Jack pine budworm populations varied from area to area in the Lake States defoliating approximately acres. Spruce budworm populations decreased throughout the Northeastern Area but still defoliated million acres. Maine reported the lowest defoliation. Figures since 1973. Bruce spanworm populations in general are on the decline except in Wisconsin while fall cankerworm defoliation increased areawide. The gypsy moth defoliated million acres, an increase of 70 percent over 198.

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