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《Agrochemicals》 2012-08
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Field efficacy of sulfoxaflor 240 g/L SC against Nilaparvata lugens(Stl)

LIN Ren-kui1,ZOU Hua-jiao2,WU De-fei3(1.Xianyou Plant Protection and Plant Quarantine Station,Xianyou 351200,Fujian,China; 2.Institute of Pesticide Detection of Fujian Province,Fuzhou 350003,China; 3.Agricultural Technology Extension Station of Xianyou county,Xianyou 351200,Fujian,China)  
The paper aims to conform the efficacy and the optimum dosage of sulfoxaflor 240 g/L SC on controlling Nilaparvata lugens(Stl) in rice field.[Methods] Using the method of field spray,the efficacy of sulfoxaflor 240 g/L SC with dosage of 37.5,50,75,100 g a.i./ha on controling N.lugens were determined.[Results] The control effects of sulfoxaflor 240 g/L SC with dosage of 37.5 and 50 g a.i./ha after 1-3 days after treatment were 51.42-68.51%,and 61.00-79.10% after 7-14 days,the rapid control effects had no significant difference compared with uprofezin 25% WP at 1125 g a.i./ha,but the uprofezin 25% WP did have more persistent control effects.The control effects at 75 and 100 g a.i./ha after application of 1-3 days were 67.18-74.11%,and 81.26-89.22% after 7-14 days,the persistent control effects had no significant difference with uprofezin 25% WP at 1125 g a.i./ha,but sulfoxaflor 240 g/L SC has more rapid control effects.[Conclusions] The dosage of 75-100 g a.i./ha of sulfoxaflor 240 g/L SC could effectively control the populations of N.lugens via method of field spray,it can be applied and extended in rice yield.
【Fund】: 农业部农药检定所项目(2011)
【CateGory Index】: S435.112.3
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