3种杀虫剂防治芒果蓟马的田间药效试验

Field Efficacy of Three Insecticides against Thrips on Mango

蓟马为昆虫纲缨翅目的统称,以若虫、成虫锉吸为害芒果花、叶、芽、幼果,严重影响果实品质。在四川攀西地区采用3种杀虫剂和1种助剂进行了芒果蓟马的田间药效试验,结果表明:22.40%螺虫乙酯SC(1000倍液)、100g/L乙虫腈SC(1000倍液)、22%螺虫·噻虫啉SC(1000倍液)3种药剂对芒果蓟马防治效果优于啶虫脒、2.30%甲氨基阿维菌素苯甲酸盐,且持效期更久,防治效果更理想;而22%螺虫·噻虫啉SC(1500倍液)+100g/L乙虫腈SC(1500倍液)和22.40%螺虫乙酯SC(3000倍液)+100g/L乙虫腈SC(1500倍液)+900g/L哈速腾助剂(3000倍液)的组合对芒果蓟马的防治效果优于单剂使用效果。可为攀西地区芒果蓟马防治药剂的选择提供更多参考和借鉴。

The thrip is the collective name of the order Thysanoptera in the class Insecta, which damages mango flowers, leaves, buds and young fruits by their worm and adult insects, and seriously affects fruit quality. In this study,three pesticides and an accessory ingredient against thrips on mango were tested in the field. The results showed that the three chemicals of 22.40% spirotetramine SC(1000 times), 100 g/L acetamiprid SC(1000 times)and 22% spirotetramine-thienyl SC(1000 times)were more effective than acetamiprid and metamiprid benzoate in the control of thrips on mango with longer duration and better control effect;while the combination of 22% spirotetraminethienyl SC(1500 times)+ 100 g/L acetamiprid SC(1500 times)and 22.4% spirotetramine SC(3000 times)+ 100 g/L acetamiprid SC(1500 times)and 900 g/L auxiliaries(3000 times)was more effective than a single dose use in the control of thrips on mango. This study provided more references and examples for the selection of agents for mango thrips control in Panxi.