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我国农作物每年受害虫为害的损失约在5％以上,说明农作物害虫的危害性颇大,必须进行防治,以挽回不必要的损失。长期来,我国的农作物害虫防治工作虽已取得很大成绩,但在新的形势下,害虫防治工作无论在策略上和具体做法上均有进一步研究的必要。回顾历史经验,害虫防治策略常因时因地有所不同,主要表现在着重于治,还是着重于防。本世纪五十年代前后,我国与很多国家一样,害虫防治的策略思想是着重于害虫发生为害之后的治,特别是有机合成农药大量生产、普遍应用之后,以治为主的策略,表现更为突出。害虫防治科学研究方
The annual damage caused by pests in our crops is about 5% or more. This shows that the pests of crops are quite harmful and must be controlled so as to restore unnecessary losses. For a long time, great achievements have been made in the prevention and control of crop pests in our country. However, under the new situation, there is a need for further research on pest control both in strategy and practice. Recalling historical experience, pest control strategies often vary from place to place, mainly in focus on governance, or focus on prevention. Around the 1950s in our country, as in many other countries, the strategic thinking of pest control focused on the pest control after its occurrence, especially the mass production and application of organic synthetic pesticides. prominent. Pest control science research side