利用生物毒素来抑制有害昆虫的生长一直是植保科研的一个重要课题。日前 ,日本大孤生物工程研究所研制出一种生物型农药 ,并开始小批量投入实际应用。据了解 ,首批生物型农药是从大胡蜂的毒腺中提取的大胡蜂毒素 ,经过几万倍稀释后制成的农药液剂 ,喷施后可杀灭多种农作物害虫 The use of biological toxins to inhibit the growth of harmful insects has always been an important subject of plant protection research. Recently, Japan’s Institute of Bioengineering Bio-engineering developed a biological pesticide, and began small-scale investment in practical applications. It is understood that the first batch of biological pesticides is from the venom of the Vespa extract Vesapist toxin, after tens of thousands of times diluted pesticide solution made after spraying can kill a variety of crop pests