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以玉米象为试虫,对采自西北五省区的92科444种植物样品进行室内生物活性筛选,选出64种对玉米象种群有抑制作用的样品.其中大籽蒿、木地肤、(木岺)叶槭、葎草、烟管头、蓖麻、紊蒿、日本菟丝子、角果碱蓬、沙地柏、石榴、华北珍珠梅、野苜蓿等14种植物样品的抑制效果达80%以上,有一定的直接利用价值和进一步深入研究的必要.这几种高效植物样品对试虫均无明显接触和熏蒸杀虫作用,其作用方式和作用机理有待于进一步探讨.
In this study, 444 species of 92 plants from 92 counties of northwestern China were screened for indoor bioactivity using corn as test insects, and 64 samples were selected for their inhibition of maize elephant populations. Among them, Artemisia scoparia, The inhibitory effect of 14 species of plants such as Acer palmatum, Achnatherum splendens, tobacco pipe head, castor, Artemisia selengensis, Dodder, Japanese podophylla, Sabina vulgaris, Pomegranate, Pear plum, %, There is a certain value of direct use and the need for further research.Effective contact and fumigation insecticidal effect of these high efficiency plant samples on the test insects, its mode of action and mechanism to be further explored.