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目前我国大约有超过40万公顷的保护地受根结线虫的危害,每年对各种蔬菜的为害损失超过30亿元,而且在未来10年内会以年平均4%~9%的增幅上升。由于根结线虫危害的独特性,人们对根结线虫危害的认识较晚,线虫的防治发展缓慢。长期以来,对根结线虫的防治主要以化学防治为主,但化学防治药剂种类少、有的对环境影响大、易对作物产生药害、施用不便等。近来
At present, there are about 400,000 hectares of protected areas in China harmed by root knot nematodes. Each year, the damage to various vegetables is over 3 billion yuan, and the annual average increase will be 4% -9% in the next 10 years. Because of the peculiarities of root-knot nematode hazards, people know more about the damage of root-knot nematodes and the control of nematodes develops slowly. For a long time, the root-knot nematode prevention and treatment mainly dominated by chemical control, but less chemical control agents, and some have a great impact on the environment, easy crop injury, inconvenience of application. recently