【摘要】 采用室内药浸法和室外常规喷雾法进行了几种生物性杀虫剂防治稻水象甲的试验研究。结果表明:质量分数为24 5%多虫螨丁乳油500倍液、质量分数为0 12%灭虫丁可湿性粉剂500倍液处理后的防效与对照质量分数为36 8%维稻乳油相当;质量分数为0 26%苦参碱水剂300倍液、质量分数为46%杀苏可湿性粉剂500和1000倍液、质量分数为0 12%灭虫丁可湿性粉剂1000倍液的防效均低于对照。更多还原

【Abstract】 Indoor and outdoor experimental studies on applyingg biological pesticides for control of Lissorhoptrus oryzophilus were conducted by soaking rice into pesticide solution in the indoor experiment and conventional spray in the outdoor experiment. The results show that the effects of applying 24.5% Avermectini·diesel oil EC(500 times) or 0.12% Miechongding WP(500 times) are equal to the effects of applying 36.8% Weidao EC(500 times) and the effects of applying 0.26% Matrine Water Solution AS(300 times),46%Shasu WP(500 times,1 000 times), 0.12%Miechongding WP(1　000　times) are lower than those of the contrast.更多还原