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Western Forest Insect Work Conference


Photos from the WFIWC Archives:
Control Methods

photo of a Japanese poster about controling bark beetles

Following the surrender of Japan "bark beetles" were believed to be responsible for extensive mortality of pines on the island of Honshu. Robert L. Furniss (1908 -1980), of the Portland Forest Insect Laboratory was assigned there in 1948 and 1950 "To analyze the forest insect infestation problem in Japan and make recommendations for improved practical control measures."

This poster informed private landowners about the cause of dying pine trees and instructed them to fell infested trees and to burn the infested bark. The characters across the top read: "Let's control bark beetles!" In the circle, at left, is "Pine eater", at right is "White spotted pine elephant bug (referring to the trunk-like snouts of weevils)." Above the circle reads "They suck nutrition from underneath the bark." On trunk, left of the chopper: "To control bark beetles it is important to detect them at the early stage." Above chopper: "Pines die! Detect sick trees and cut them." On trunk at right: "Too late to control (as indicated by dead foliage)." Above person at right: "Cut pine trees must be peeled and burned. Pine wood can't be moved" (in red). At bottom right: "Hyogo-ken (Prefecture)." Translation provided by Takuji Noma. Furniss 2006, Fig. 4 A.



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