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赤拟谷盗是一种重要的世界性储粮害虫,防治困难。本文采用浸渍法测定了番茄茎叶、芦苇全株、水杉叶、皂荚果实等4种植物材料水提液与两种杀虫剂混用对赤拟谷盗的毒力效应。结果表明,各提取液与40%辛硫磷乳油1000倍液、5%氯氰菊酯乳油500倍液以不同比例混配时,均表现出不同程度的增效作用。药液与植物提取液以4∶1、1∶1体积比混配时,增效作用显著,是赤拟谷盗防治措施的有益探索。
Tribolium is an important global grain pests, prevention and control difficulties. In this paper, the toxic effects of four kinds of plant material water extracts of tomato stem and leaf, whole reed plant, Metasequoia glyptostroboides and acacia pods, etc., on two kinds of insecticides were tested by immersion method. The results showed that all the extracts showed synergism to some extent when mixed with 1000 times of 40% phoxim EC and 500 times of 5% of cypermethrin EC in different proportions. The synergistic effect of medicinal solution and plant extract in the ratio of 4:1 and 1:1 is significant, which is a useful exploration for the prevention and treatment measures.