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试验结果表明，番茄田人造卵螟黄赤眼蜂释放方法以纸袋放蜂法最好，放蜂期间天气晴好也可采取蜂卡直接别放法。田间采卵调查，人造卵螟黄赤眼蜂对番茄田棉铃虫卵寄生率达５２ ．０ ％～７１ ．１ ％ ；喷施ＢＴ 制剂７ｄ 后校正虫口减退率达９５ ．０ ％ 。释放人造卵螟黄赤眼蜂结合喷施ＢＴ 制剂是防治番茄田棉铃虫的一项有效的无农药污染措施
The results showed that the method of releasing the Trichogramma ostriniae in the tomato field was the best in the paper bag release method and the fine weather during the amphibian feeding could be taken directly by the bee card. Field harvest eggs, artificial eggs, yellow Trichogramma beetle eggplant bollworm parasitism rate of 52. 0% ~ 71. 1%; Spraying BT preparation 7d after correction of insect population reduction rate of 95. 0%. The release of artificial egg-yellow borer Trichogramma plus BT spray is an effective pesticide-free solution to control bollworm in tomato field