昆虫病原菌防治萝卜黄曲条跳甲田间应用技术

Field Application Techniques for Control of Phyllotreta striolata with Microbial Insecticides on Radish

黄曲条跳甲是为害十字花科蔬菜的世界性害虫。本文研究了昆虫病原菌苏云金杆菌工程菌G033A和金龟子绿僵菌CQMa421防治萝卜黄曲条跳甲田间应用技术。结果表明,采用昆虫病原微生物苏云金杆菌G033A和金龟子绿僵菌CQMa421土壤处理防治黄曲条跳甲均具有较好的防效,其中32000 IU/mg苏云金杆菌工程菌G033A可湿性粉剂300 g/667 m2土壤处理防治效果显著优于对照化学药剂,且持效期较长,具有明显的减药、省力、降成本作用。针对萝卜主要病虫害开展了全程生物防控技术示范,结果表明全程生物防控技术不仅防治效果好,且较常规化学防治技术增产达到14.8%,品质得到提升,商品优良率提高12%,可进一步大面积示范推广。

Phyllotreta striolata is a worldwide pest of cruciferous vegetables.In this paper,field application techniques for the control of P.striolata with engineered Bacillus thuringiensis G033A(Bt G033A)and Metarhizium anisopliae CQMa421 on radish were studied.The results showed that both of microbial pesticides had good control effect on P.striolata on cultivated radish with soil treatment.32000 IU/mg Bt G033A wettable powder had higher control efficacy and longer term of control than the conventional chemical control.The demonstration of whole-process biological solution was carried out to control the main diseases and insect pests of radish.The results demonstrated that the whole-process biological solution not only had a good control effect,but also increased the yield by 14.8%compared with the conventional chemical control.The quality was improved,with the rate of high quality products was also increased by 12%.It is recommended to apply the techniques in large area demonstration and extension.