在提取红铃虫性引诱剂时,有些单位碰到一些具体问题。现根据我们的体会,简复如下: 问:棉茧好还是灰茧好? 答:实践证明灰茧优于棉茧。收茧方法简便,发生螨时容易处理。虽然剥光的棉茧成虫的得率也很高,但剥茧很费工。问:老熟幼虫分雌雄好还是成虫羽化后分雌雄好? 答:幼虫分雌雄不但费工,而且在加温期间幼虫逃逸多,死亡率也高,会造成不必要的 Some units encountered some specific problems when extracting red bellworm sex attractants. Now based on our experience, Jane complex as follows: Q: Cotton cocoon is good or gray cocoon? A: Practice proved that gray cocoon is better than cotton cocoon. Harvest cocoon method is simple, easy to handle when mites occur. Although stripped of cotton cocoon adults rate is also high, but the cocoon is laborious. Q: mature larvae or male and female adults after emergence is good? A: larvae not only male and female workers, but also during larvae escape more, the mortality rate is high, will cause unnecessary