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To control Monochamus alternatus and its amount of population is one of the effective ways on controlling Bursaphelechus xylophilus.The Japanese black pine which were badly harmed by M.alternatus were sprayed with the ditution from diluting fenitrothion · buprofezen 50%EC with water to 100 times, 200 times and 300 times. In this trial, the treatment is divided into two groups: one is of the different concentration but the same object (trees in the forest), the other is of the same concentration but different environmental condition (trees in the forest and felling trees indoor). Each treatment repeated five times. In the meantime, the check is not treated. After twice trial, the result indicated that the mortality rate of M. alternatus is 71.33%, 52.31% and 37.82% in the condition that trees in the forest were sprayed with the 100 times, 200 times and 300 times fenitrothion·buprofezen, and 69 69% in the condition that the felling trees indoor were spraded with 100 times fenitrothion·buprofezen, but the mortality rate of the check is only 8.92%. By this trial, it was also found that the dead adults of M.alternatus laid in the entrance of emergance hole, so enhancing the somatic character of fenitrothion · buprofezen can enhance the injury ratio of larva and pupae of M.alternatus. 相似文献
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安徽无为油桐尺蛾的发生与防治油桐尺蛾ＢｕｚｕｒａｓｕｐｐｒｅｓｓａｒｉａＧｕｅｎｅｅ幼虫取食油桐叶片，甚至啃食桐果的皮层。油桐受害后影响生长、结实，严重时造成树木死亡。在安徽省无为县，油桐尺蛾一年发生２代，以蛹在树下土壤中越冬。翌年５月上中旬成虫羽化... 相似文献
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松材线虫病 [Bursaphelechus xylophilus(Steiner et Bubre) Nickle]被称为“松树癌症”,是松树的一种毁灭性病害[1 ] ,列为我国森林病虫害之首。松褐天牛 (Monochamus alternatusHope)在松材线虫病的传播中起重要作用 ,因此 ,防治松褐天牛是松材线虫病治理工作中的一项重要内容[2 ,3] ,国内此方面的研究有过报道 [4,5] 。为进一步探索松材线虫病的治理途径 ,作者于 2 0 0 0年 3～ 1 2月应用 50 %杀螟·噻嗪酮乳油进行了防治松褐天牛的试验。现将结果报道如下。1 试验地及其林分状况试验地设在安徽省和县鸡笼山林场的代虎山 ,海拔 1 50 … 相似文献
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