触目惊心的数字有资料统计表明,近十年来浙江省的粮食作物每年病虫害发生约1.5亿亩次,草害发生3000万亩次,鼠害发生2000万亩次,常年病虫害防治2亿亩次,草害防治2000万亩次,鼠害防治800万亩次。即使进行了一般防治,每年仍要损失粮食9亿公斤,约占粮食总产量的6%,其中由草害引 Shocking figures statistics show that in the past 10 years, pests and diseases in Zhejiang Province, about 150 million mu of annual occurrence of pests and diseases, the occurrence of 30 million mu of grass-shrimp times, rat damage occurred 20 million mu times, perennial pest control 200 million mu times, grass Prevention and control of 20 million mu times, rodent control 800 million mu times. Even with the general control, 900 million kilograms of grain are still lost each year, accounting for about 6% of the total grain output, of which grass is cited