论文部分内容阅读
大家都知道,使用化学药剂可以对付那些有害的昆虫、病菌等.但是,滥用化学农药的恶果已为人们敲响了警钟:环境污染,人畜中毒,物种在减少,资源在破坏.为此,生物防治技术日益引起人们的重视.那么,什么是生物防治?先请看历史上一个真实的故事.历史上的一个奇迹1989年美国昆虫学会邀请世界上许多国家的专家学者召开了一次隆重的大会,纪念引进澳洲瓢虫防治吹绵蚧100周年.十九世纪八十年代,美国加利福尼亚州的柑桔种植业刚刚兴起,金黄色的累累果实给人们带来了丰收的喜悦.但是,吹绵蚧(Icerya purchasi,
As we all know, chemicals can be used to deal with those harmful insects, germs, etc. However, the consequences of abuse of chemical pesticides have sounded the alarm: environmental pollution, animal and animal poisoning, species are reduced, resources are destroyed.To this end, Prevention and control technology has aroused people’s attention day by day.What is biocontrol? Take a look at a true story in history.A miracle in history In 1989, the American Entomological Society invited experts and scholars from many countries in the world to hold a grand conference, Commemorate the 100th anniversary of the introduction of ladybugs in Australia for the prevention and control of blowing cottonseekes. In the 1880s, citrus farming in California, USA, was just beginning to emerge. The golden yellow fruits brought joy to people. However, Icerya purchasi,