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利用平腹小蜂Anastatussp.防治荔枝蝽的若干技术问题进行研究与探讨.结果表明,平腹小蜂在田间以成虫和老熟幼虫越冬.平腹小蜂成虫的抗寒性比较差,如3℃条件下待续2~4d就出现部分虫体被冻死,但仍有一定的抗寒能力,在3℃条件下持续10d以后,还有1/5的被测试虫体未被冻死.成虫羽化的最适温度为30~32℃.荔枝蝽产卵始盛期为当年第1次散放平腹小蜂的最适时期,于散放平腹小蜂前10d喷第1次农药,再行放蜂,又于放蜂后50d喷第2次农药,还可防治其它病虫害,是最佳的综合防治方案.
Use Anastatussp. Several technical problems of preventing and curing litchi stink bug are studied and discussed. The results show that Baphicola prey in the field with adult and mature larvae wintering. The cold resistance of the beetle adult is relatively poor, such as 3 ~ 4d to be continued for 2 ~ 4d part of the body was frozen to death, but there are still some cold ability, at 3 ℃ for 10d One fifth of the tested parasites were not frozen to death. Adult temperature of the emergence of the optimum temperature of 30 ~ 32 ℃. Litchi stinkbug spawning beginning of the first period was the best time to distribute Baphicola bee, before the release of Baphicola beetles spray the first pesticide 10d, and then put the bee, and after the bee discharge 50d spray The second pesticide, but also prevent other pests and diseases, is the best integrated program of prevention and treatment.