Habits of Attack by the Black Turpentine Beetle on Slash and Longleaf Pine in North Florida

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Abstract
The beetle is usually most active in disturbed stands such as logging areas, burned tracts, or naval stores operations where it can attack as much as 20% of a stand in a single season. First attacks are few in number and almost always confined to the basal 18 in. of the tree. Attacks slowly increase in number and to a height of about 72 in.; however, 85% of these attacks were made in the basal 36 in. of the trunk over a period of 5-7 months with the peak of activity reached during the 2d and 3d months. Although some activity may occur all year long, 90% of its action occurred from April to Oct.

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