METHOD FOR ATTRACTION AND EXTERMINATION OF MONOCHAMUS ALTERNATUS HOPE IN PRODUCTIONNPROMOTING STAGE OF PINE RESIN

摘要

PURPOSE:To increase the yield of pine resin, and to exterminate Monochamus alternatus Hope, easily, without environmental pollution, at a low cost, by applying the circumference of the lower part of a pine tree with horizontal notches, and injecting or coating an agent such as ''Paraquat'' or ''Gramoxone'' to the notch. CONSTITUTION:The yield of pine resin is increased and Monochamus alternatus Hope can be attracted and exterminated by applying horizontal notches to the circumference of the lower part of a pine tree 1, and injecting or coating an agent such as a solution of ''Paraquat'' or ''Gramoxone'' to the notch. The notch is applied to cut the periphery of the pine tree only pertly every several months, and should not cut all around at a time. By controlling the yield of pine resin, Monochamus alternatus Hope can be effectively exterminated without withering the pine tree. When the pine tree is weakened in the course of the pine resin production, a large amount of pine resin can be obtained by lumbering the tree before withering. The attracted insects are killed by applying an insecticide thereto or adding an insecticide to the solution applied to the tree.