黃麻擬尺蠖田間藥劑防治試驗

Abstract

1.黃麻擬尺蠖(Tirideta sabulifera Guenee)田間藥劑防治試驗，係賡續去年(1962) 之田間試驗。共使用50% Sevin W. P. (0.05%), 10% rBHC E. C. (0.05%), 25% DDT E. C. (0.05%)等3種藥劑稀釋液，連對照區共4處理。 2.田間藥劑防治效果，以50% Sevin W. P. (0.05%)之藥效最優，10% rBHC E. C. (0.05%)次之，25% DDT E. C. (0.05%)稍差。 This experiment was carried out to ascertain the result obtained in 1962. The materials and methods used were as same as that of last year. A 50% Sevin wettable power, 10% r-BHC and 25%DDT emulsifiable concentrates were equally diluted to a concentration of 0.05%, and their effects agains the jute looper (Tirideta sabuif era Guenee)were compared. The result showed that the most effective control of the insect was obtaned with Sevin, a moderate control with BEC and the least with DDT.