采用温室盆栽试验研究了昆虫病原线虫Heterorhabditis bacteriophora-NJ施用剂量、施用次数和在盐碱土、风沙土及黑土等不同土壤类型条件下对东北大黑鳃金龟(Holotrichia diomphalia)幼虫防治效果的影响。结果显示,嗜菌异小杆线虫施用浓度在线虫5条/cm2~80条/cm2剂量时,施用2~3次,可有效地控制东北大黑鳃金龟幼虫,施用浓度对线虫防治东北大黑鳃金龟幼虫效果的影响较施用次数要大。在黑土、盐碱土和风沙土中,嗜菌异小杆线虫对东北大黑鳃金龟幼虫的防治效果都较高,其中盐碱土防效更好一些。表4,参24。 The pot experiment was conducted to study the effects of different dosage of Heterorhabditis bacteriophora-NJ on the larvae of Holotrichia diomphalia under different soil types such as saline-alkali soil, aeolian sandy soil and black soil. The results showed that when the concentration of Mythiomycotina was applied at the dose of 5 / cm2 ~ 80 / cm2, the larvae could be controlled 2 ~ 3 times. The effect of gill beetle larvae is greater than the number of applications. In black soil, saline-alkali soil and aeolian sandy soil, the mycobacterium algae Helicoverpa armigera larvae control effect are higher, of which saline-alkali soil control effect is better. Table 4, reference 24.