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田间试验和室内试验表明,50%棉铃宝乳油对棉铃虫幼虫和卵,26%灭铃皇乳油对棉铃虫幼虫均具有理想的防治作用。喷施棉铃宝75毫升/667米2后7天,虫卵综合防效达944%,喷施棉铃宝100倍液和灭铃皇100倍液后5天,对2~4龄幼虫的防治效果分别达967%和933%。氟氯氰菊酯与三唑磷对3龄以上幼虫防效不理想
Field experiments and laboratory tests showed that 50% cotton bollworm cream had the best control effect on cotton bollworm larvae and eggs, and 26% Spraying cotton boll 75 ml / 667 m 2 after 7 days, the integrated egg control effect of 94 4%, spraying cotton bollworm 100 times and 100 times the ring Emperor Huang 5 days after the 2nd to 4th instar larvae The control effect reached 96.7% and 93.3% respectively. The control efficacy of cyfluthrin and triazophos on 3rd instar larvae is not satisfactory