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豆秆黑潜蝇是大豆的主要害虫之一。在江苏省一年发生5—6代,在夏大豆生长中后期的蛀茎率每年均达100％。经调查,江苏省目前尚不存在完全无蝇害的品种及完全无蝇害的地区。1981年作者承担了江苏省豆秆蝇协作组的豆秆黑潜蝇呋喃丹防治试验与危害损失率测定工作。研究结果表明:全期防治蝇害的比不用药防治蝇害的豆株含虫量减少26.4—35.3％;大豆产量随豆株含虫量上升而减少,呈负相关,r=-0.882,达显著水平;因蝇害而引起的产量损失达20—30％。
Stem Black-shelled moth is one of the major pests of soybean. Occurred in Jiangsu Province 5-6 generation a year, in the late growth of summer soybean stem borer rate reached 100% each year. After investigation, no species completely free of flies and no completely flies were found in Jiangsu Province. In 1981, the author undertook the control experiment and risk loss rate determination of Soybean Moray leaf flies in Jiangsu Province. The results showed that: the amount of insect-control insects in the whole period decreased by 26.4-35.3% compared with that of the control insects; the yield of soybean decreased with the increase of the number of insects in the soybean plant, which was negatively correlated (r = -0.882) Significant level; due to fly damage caused by the loss of up to 20-30%.