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黑胸茧蜂除寄生根红铃虫、梨小食心虫外，豆荚螟是又一发现的新寄主。黑胸茧蜂对棉红铃虫寄生率高，豆荚螟、梨小食心虫依序次之。在湖北，黑胸茧蜂越冬代于5月上、中旬开始羽化，5月中、下旬寄生第二代梨小食心虫，6月中、下旬越冬代大量羽化集中寄生春大豆上第二代豆荚螟，7月上、中旬转移至棉田寄生第一代棉红铃虫，8月上、中旬又向棉田四周的夏大豆田转移寄生第三代豆荚螟，9月上、中旬迁回棉田寄生第三代棉红铃虫直至越冬。
In addition to the black thorn brachii parasitic rhizome pink bollworm, pear borer, the pod borer is another discovery of the new host. Black thorn bracts bee on cotton bollworm parasitism rate, pod borer, pear moth in order. In Hubei, the black-winged Braconidae overwintered on May and began to emerge in mid-May, the second and fifth instars in mid-May parasitized the second generation of pests, and the mid- In July, the middle and the middle of the year, the first generation of cotton bollworm was transferred to the cotton field, and the third generation of pod borer was transferred to the summer soybean field in the upper and middle of the cotton field in August. In the middle and the middle of September, Cotton bollworm until winter.