【摘要】 1985—1988年田间试验结果表明,棉花移栽时施涕灭威500—1000克有效含量/公顷,能有效地控制螨害达50天以上,螨量和红叶株率都比不防治对照显著减低,皮棉产量比对照增加27.8—38.2％。移栽施甲拌磷1350—2500克/公顷,防治叶螨的效果比涕灭威略差,残效期只有30多天,增产效果不如施涕灭威的显著。呋喃丹防治棉叶螨无效。大田示范施涕灭威563克有效含量/公顷,防治叶螨的效果优于常规喷药3—4次。地膜棉施药的防治效果优于常规露地棉。移栽施内吸农药对棉花生长、结铃有一定的促进作用。更多还原

【Abstract】 The results of field experiments in 1985—1988 showed that therewere good efficacies against cotton spider mite Tetranychus cinnabarinus(Boisduval) for more than fifty days in the plots treated with aldi-carb (0.5—1.0 kg/ha.) in seedling hole at transplanting time,themite population and infection plant rate were significantly lower,andthe fibre yields were 27.8—38.2% more than those of untreated one,while the effect and persistance of phorate treatment (1.35—2.5kg/ha.)were inferior to aldicarb,and in carbofuran treatment did notshow any effect on cotton spider mite.In field demonstration,thealdicarb treatment (563g(a.i.)/ha.) was more favourable than threeor four times of traditional sprays,and it is more effective in plasticfilm covered field.There were some promotions to cotton growth andfruitage in systemic insecticide treatments.更多还原