绿盲蝽越冬卵在鲁西棉区的分布

Distribution of Overwintering Eggs of Apolygus lucorum Meyer-Dür(Hemiptera:Miridae) in Cotton Regions of Western Shandong

为了明确绿盲蝽越冬卵在鲁西棉区的分布,系统调查了棉田周边林木、杂草及棉花秸秆。结果表明:绿盲蝽越冬卵在鲁西棉区主要分布在棉田周边的林木上,其中杨树是绿盲蝽产越冬卵的主要场所,杨树上越冬卵量占越冬总卵量的90.91%;蚱蝉产卵形成的缝隙是绿盲蝽在杨树上产越冬卵的主要部位,其越冬卵量占杨树上总卵量的69.70%;杨树上越冬卵量与距棉田的距离呈负相关,紧靠棉田、距棉田10、20、50 m处杨树上绿盲蝽越冬卵量分别占杨树上总卵量的42.51%、26.36%、19.77%和11.36%。

Aimed to reveal the distribution of the overwintering eggs of Apolygus lucorum Meyer - Dtir （Hemiptera： Miridae） in the cotton regions of western Shandong, the trees; weeds around the cotton fields and cotton stalks were systematically investigated. The results indicated that the overwintering eggs of A. lucorum mainly distributed on the trees around cotton fields. Poplars were the main locations, on which, 90.91% eggs were detected. The slits caused by the ovipositors of Cryptotympaua atrata Fabrieius on poplar were the most favorable oviposition sites of A. lucorum, and 69.70% overwintering eggs were laid there. The number of o- verwintering eggs on poplars negatively correlated with the distance to the cotton fields, which at 0 m, 10 m, 20 m and 50 m away from the cotton fields were 42.51% , 26.36%, 19.77% and 11.36% of the total overwintering eggs detected respectively.