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选用2.5%甲基对硫磷、90%天幼脲Ⅲ号原粉和3%敌死蝉,分别用陶土稀释5种浓度防治鞭角华扁叶蜂1~6龄幼虫。试验结果表明,72h死亡率,用2~8倍陶土稀释的2.5%甲基对硫磷达87.6%~97.9%,用25~250倍陶土稀释的90%天幼脱Ⅲ号原粉达85.6%~97.1%,用2~8倍陶土稀释的5%敌死蝉粉剂达85.4%~99.2%。2.5%甲基对硫磷、90%天幼脲防治成本分别为21.65~23.5元/hm2、24.75~35.73元/hm2。
The 2.5% methyl parathion, 90% primrose Ⅲ powder and 3% enemy cicada were selected. Five concentrations of clay were used to control the 1st to 6th instar larvae of Acanthurium. The test results showed that the 72h mortality rate was 87.6% -97.9% with 2.5% methyl parathion diluted with 2 to 8 times of clay, 90% The original powder reached 85.6% ~ 97.1%. The 5% enemy cicada powder diluted by 2 ~ 8 times clay reached 85.4% ~ 99.2%. 2.5% methyl parathion, 90% urea control costs were 21.65 ~ 23.5 yuan / hm2, 24.75 ~ 35.73 yuan / hm2.