玉米螟赤眼蜂在甜玉米地寄生率和扩散规律的研究
Parasitization by dispersion of Trichogramma ostriniae in sweet corn fields.
胡学难1;梁广文2;庞雄飞2
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作者单位：1.广州出入境检验检疫局植检实验室,广州510623;2.华南农业大学昆虫生态研究室,广州510642;
中文关键词：玉米螟赤眼蜂;寄生率;扩散
英文关键词：Trichogramma ostriniae Pang et Chen; rate of parasitization; dispersion
中文摘要：调查研究了玉米螟赤眼蜂TrichogrammaostriniaePangetChen在甜玉米地的年消长动态、日活动规律 ,以及对不同甜玉米品种和不同防治类型地亚洲玉米螟Ostriniafurnacalis (Guenee)卵的寄生率。玉米螟赤眼蜂田间扩散规律为 :在苗期 ,按每点 2000头的蜂量相距 32m左右
英文摘要：The annual population dynamics and daily activity patterns of Trichogramma ostriniae were investigated. Parasitization rates differed in different varieties of sweet corn and control fields. Optimum release rate and dispersal distance were obtained by