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昆虫致病线虫是中国农科院生防室新线虫组研究出的一个线虫品系,它能侵染多种害虫,黑暗潮湿的环境有利于其活动和存活。因此对我们防治白腊蛀干害虫木蠹蛾提供了很好的依据。木蠹蛾是我市主要蛀干害虫之一,它危害着白腊树的生存,白腊树为天津市的市树和主要绿化树种,为了发展和保护我市的白腊树,我们先后采用了①注射DDV,由于经常使用化学农药,虫体产生了抗药性,效果不明显,注射后仍有新虫粪和木梢排出。②插毒签,此方法较好,但药源不足。③喷洒天津园林科研所研制
Insect pathogenic nematodes is a nematode strain developed by the new nematode group of the Chinese Academy of Agricultural Sciences. It can infect many kinds of pests, and its dark and humid environment is beneficial to its activity and survival. Therefore, we provide a good basis for preventing and controlling white borers. It is one of the major pests in our city that it damages the survival of the white wax tree. The white wax tree is the city tree and the main afforestation tree in Tianjin. To develop and protect the white wax tree in our city, we use ① injection of DDV, due to the frequent use of chemical pesticides, parasites produced resistance, the effect is not obvious, there are still new insects after injection and muck discharge. ② Poison sign, this method is better, but lack of medicine. ③ spraying Tianjin Institute of landscape research and development