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我省稻区从7月中旬至9月上旬危害水稻的病虫有二化螟、三化螟、飞虱、纵卷叶螟、稻苞虫、蓟马和纹枯病等,病虫种类多,且重叠发生.目前用于防治这些病虫的农药主要有甲胺磷、扑虱灵、井岗霉素、杀虫双等,由于多种农药在田间现配现用,增加了施药难度,农本也高.为此,自1989年起,开展了双灵可湿性粉剂的配方、剂型及应用效果的研究.经南京保丰农药厂检测室、南京大学现代分析中心、南京医学院毒理研究室等单位的检测,21%双灵可湿性粉剂细度为325目98%通过,湿润时间为30秒,低于一般农药品种的指标,悬浮率可达70%以上.pH6～7,属中性.稳定性好,50±1℃热藏一周后对飞
Insects and pests that endanger rice in our province from mid-July to early September include Sesamia inferens, Sesamia inferens, planthoppers, leafroller, rice shellworm, thrips and sheath blight, etc. , And the overlap occurs.At present, the pesticides used to control these pests and diseases are methamidophos, methotrexate, Jinggangmycin, insecticidal double, etc., due to the presence of a variety of pesticides in the field is now available, increasing the difficulty of pesticide application , Agricultural capital is also high.Therefore, since 2000, carried out Shuangling wettable powder formulation, dosage form and application of the effect of the research by the Nanjing Baofeng Pesticide Factory Testing Center, Nanjing University Modern Analysis Center, Nanjing Medical College R & D department and other units of the test, 21% Shuangling WP fineness of 325 mesh 98% through the wetting time of 30 seconds, lower than the general indicators of pesticide varieties, the suspension rate of up to 70% .pH6 ~ 7, Is a neutral. Stability is good, 50 ± 1 ℃ heat a week after the fly