阳泉地区油松食叶害虫松阿扁叶蜂的研究

为了明确在山西阳泉地区庄头和黄统岭林场油松林内逐渐暴发成灾的食叶害虫危害的具体情况,控制该害虫的危害。在该害虫发生严重的林地对其形态特征、生物学特性及危害特点进行定时、定点观察和记录;并采用3种生物制剂对其2~3龄的幼虫进行了林间防治试验。研究结果表明,在阳泉地区严重发生的油松食叶害虫种名为松阿扁叶蜂,该害虫在该地区危害与在别的地区危害在树种、树龄及生活史有差异。采用目前市场上的无公害农药防治该害虫以1.2%森得保可湿性粉剂500~1 500倍的防治效果达78.7%~83.5%;40%苦参烟碱烟剂防治效果达83.4%~84.5%;1.2%苦参烟碱乳油防效为84.8%~86.4%。

Studies on Acantholyda posticalis of defoliating insect of Pinus tabulaeformis in Yangquan Shanxi Province China

In order to make clear the concrete conditions of in defoliating insect in the region,One kind defoliating insect of Pinus tabulaeformis was found getting more and more and to be plague of pests in pine forest of Zhuangtou and Huangtongling tree farms,in the City of Yangquan,Shanxi Province.Morphological characteristics,biological characters,and the law of happening and changing of the defoliating pest were observed and studied in forest lands of plague of pests by fixed time and sites.In order to control the harm of defoliating insect in the region,three different control measures were tried in forest lands and 83.4~84.5 %,84.8~86.4 % and 78.6~83.6 % of larvae of the second to the third instars were killed in pines forest with 40% Matrine smoke,1.2 % emulsion and 1.2 % wettable powder of Sendebao 500~1500×,respectively.The research makes clear the species name Acantholyda posticalis Mastsumura of the defoliating pest,the difference from harmed tree species and tree ages in this regions and other region and the results of three kinds of biochemical control larvae of the second to the third instars of the pest in forest lands.