Study On The Techniques Of Chemical Control For Termites In Economic Forest

Termites are the important insect pests in the world. According to the published papers, there are 20 species of termites, which belong to 4 families and 13 genus and occur in the economic forests in China. Of which, Coptotermes formosanus Shiraki, Reticutitermes flaviceps Oshima, Odontotermes formosanus Shiraki, Odontotermes hainanensis Light, Macrotermes barneyi Light and Macrotermes annandadei Silvestr are the termite species with the serious damage on the trees in China.Spraying chemical solution and applying bait are the main measures for termite control in economic forest in past years. However, as the reduction and elimination of chlordane and mirex, these two measures should be adjusted and improved according to the property of alternative chemicals. The 20% Tianying Termite-killing EC (active component is fenvalerate), 40% Bole Termite-killing EC (active component is chlorpyrifos), 25% Leanju Termite-killing EC (active component is permethrin + phoxim), 15% Wanjie Termite-killing EC (active component is cypermethrin + imidacloprid), 0.3% Keyixing EC (active component is ivermectin), 3% Keyixing Dust (active component is ivermectin), sulfluramid bait, and lime were the alternatives for chlordane and mirex used for termite control in house, building, dam, and dyke. In order to explore the feasibility of these alternative chemicals for termite control in economic forest, field tests have been done in the waxberry stand and the chestnut stand in Zhuji city, Zhejiang province.