The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was fore...The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was forecasted, so as to provide reference for landscape management and other relevant departments to effec- tively control the insect.展开更多
Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Qua...Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Quadraspidiotus gigas during 1992-93. The obvious conrol effect was obtained.展开更多
为明确茉莉酸甲酯(MeJA)诱导柿树(Diospyros kaki Linn.f.)挥发物成分的变化对蚧虫的天敌昆虫红点唇瓢虫(Chilocorus kuwanae Silvestri)吸引力的持续效应,应用3种剂量(20、100μL和200μL)的MeJA处理柿树,通过"Y"型嗅觉仪测...为明确茉莉酸甲酯(MeJA)诱导柿树(Diospyros kaki Linn.f.)挥发物成分的变化对蚧虫的天敌昆虫红点唇瓢虫(Chilocorus kuwanae Silvestri)吸引力的持续效应,应用3种剂量(20、100μL和200μL)的MeJA处理柿树,通过"Y"型嗅觉仪测试瓢虫的行为反应,并采用顶空收集和气质联用(GC/MS)分析挥发物的组成和相对含量。结果表明,MeJA可以诱导树体挥发物成分发生改变,对瓢虫产生吸引力,其持续效应可达1d以上。而不同剂量的处理组之间存在差异,高剂量组中萜烯类物质含量最多,在处理后3h瓢虫的趋性最强,相应的α-蒎烯含量高达34.05%。处理3~5d后吸引力显著下降,α-蒎烯等化合物的含量也逐渐减少。因此,茉莉酸甲酯的连续应用可以招引更多的瓢虫来控制蚧虫。展开更多
文摘The occurrence, morphological characteristic, biological characteristic, population fluctuation and control methods of Asterococcus muratae were reviewed in the paper, and the research direction in the future was forecasted, so as to provide reference for landscape management and other relevant departments to effec- tively control the insect.
文摘Quadraspidiotus gigas is a main kind of forest pest in Northeast China.Chilocorus kuwanae has a strong capability of controlling Quadraspidiotus gigas. Chilocorus kuwanae was mi grated and released for control of Quadraspidiotus gigas during 1992-93. The obvious conrol effect was obtained.
基金supported by the Grant fromthe National Nature Science Foundation of China(No.30471398)the Grant from the National Nature Science Foundation of Shanxi Province(20051066)
文摘为明确茉莉酸甲酯(MeJA)诱导柿树(Diospyros kaki Linn.f.)挥发物成分的变化对蚧虫的天敌昆虫红点唇瓢虫(Chilocorus kuwanae Silvestri)吸引力的持续效应,应用3种剂量(20、100μL和200μL)的MeJA处理柿树,通过"Y"型嗅觉仪测试瓢虫的行为反应,并采用顶空收集和气质联用(GC/MS)分析挥发物的组成和相对含量。结果表明,MeJA可以诱导树体挥发物成分发生改变,对瓢虫产生吸引力,其持续效应可达1d以上。而不同剂量的处理组之间存在差异,高剂量组中萜烯类物质含量最多,在处理后3h瓢虫的趋性最强,相应的α-蒎烯含量高达34.05%。处理3~5d后吸引力显著下降,α-蒎烯等化合物的含量也逐渐减少。因此,茉莉酸甲酯的连续应用可以招引更多的瓢虫来控制蚧虫。