应用不同浓度的2.8%高.甲维盐乳油防治小菜蛾的田间试验,结果表明:2.8%高.甲维盐乳油对小菜蛾具有良好的防效,2000X、2500X、3000X施药后1天的平均防效分别达94.44%、93.32%和89.64%,药后3天的平均防效分别达96.5%、92.16%、89.34%,药后7天2000X、2500X的防效仍分别达84.10%、80.00%、78.20%。 Application of different concentrations of 2.8% of high-dimensional salvia miltiorrhiza to control diamondback moth field experiments showed that: 2.8% of the high. Emamectin benzoate against Plutella xylostella has a good control effect, 2000X, 2500X, 3000X after 1 day of application The average antifunctions reached 94.44%, 93.32% and 89.64% respectively. The average antifunctions of three days after treatment reached 96.5%, 92.16% and 89.34% respectively. The control effects of 2000X and 2500X were 84.10% and 80.00 %, 78.20%.