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芜菁夜蛾线虫北京品系(Steinernem a feltiae Beijing) 对樱桃实蜂结茧幼虫侵染力的室内测定结果表明, 该线虫对樱桃实蜂有很高的侵染力, 当线虫剂量在12～300 条/虫时, 结茧幼虫死亡率为57.1 % ～100 % 。其致死速度和死亡率随线虫剂量的增加而升高。接种线虫48 小时后, 其LD50为32 条/虫, LD95为105 条/虫。线虫可以在虫尸体内大量繁殖, 平均每虫尸可繁殖侵染期线虫1.9 万条,这些线虫能继续侵染樱桃实蜂结茧幼虫。线虫最佳使用剂量为9～11 万条/m 2。
The results of laboratory tests on infestation power of Steinernem a feltiae Beijing against the larvae of Coccinella septempuncta showed that the nematode had a high infectivity to Apis cerana cerana. When the nematode dose was between 12 and 300 Article / insects, the mortality of cocoon larvae was 57.1% ~ 100%. Its lethal rate and mortality increased with the increase of nematode dose. After 48 hours of inoculation, the LD50 was 32 eggs per worm, and the LD95 was 105 eggs per worm. Nematodes can multiply in cadaver bodies, with an average of 19,000 infective nematodes per insect body. These nematodes can continue to infect Cocoon larvae of the cherry tree. The best dose of nematode is 9 ~ 110 000 / m 2.