5%涕灭威颗粒剂防治苹果红蜘蛛田间药效试验

• 作 者: 沈宝成 陈进西 刘俊生 李宏杰 张世泽
• 机 构: 陕西省植保总站,西北农业大学植保系
• 出 处: 陕西农业科学
• 发表日期: 1998年01期
• 关键词: 苹果红蜘蛛 颗粒剂 涕灭威 施药 田间试验 用药量 药效试验 环沟 法防 田间

田间试验表明，用５％涕灭威颗粒剂土壤施药防治苹果红蜘蛛（ＴｅｔｒａｎｙｃｈｕｓＶｉｅｎｎｅｎｓｉｓＺａｃｈｅｒ），在每株用药量为３０、６０、９０、１２０和１５０ｇ，施药后持续干旱条件下，经过４６ｄ后若遇充足的降雨或灌溉，第６３天调查环沟施药法的防治效果分别为５８．５２％、７１．７５％、８４．０２％、９３．６７％和９６．８７％；表面环带施药法防效分别为４１．５８％、６６．６２％、６６．１０％、７４．５０％和７７．１３％。据此，建议生产上利用５％涕灭威颗粒剂防治苹果红蜘蛛应采用以环沟施药法，每株用药量以１２０～１５０ｇ为宜，防效可达９３％以上。

Field experiments showed that the control of Tetranychus viennensis Zacher with 5% aldicarb granules was applied in the soil of 30, 60, 90, 120 and 150g per plant under continuous drought conditions after application for 46 days In the case of adequate rainfall or irrigation, the control efficacy of ring ditches was 58.52%, 71.75%, 84.02%, 93.67% and 96.87% respectively on the 63rd day. The surface annulus The pesticide control methods were 41.58%, 66.62%, 66.10%, 74.50% and 77.13% respectively. Accordingly, the proposed production of 5% aldicarb granules prevention and treatment of apple spider mites should be used to ditch ring ditch method, the dosage of 120-150g per plant is appropriate, the control effect of up to 93%.