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经室内毒力测定证明:虫螨磷与氰戊菊酯(3:1)混用,共毒系数(CTC)达972.1,有显著增效作用。增效磷(SV_1)与氰戊菊酯(5:1)混用有一定增效作用(CTC=274.6)。噻嗪酮的 LC_(50)o值为0.01272ppm,毒力明显高于氰戊菊酯(LC_(50)为475.77ppm),两者混用(5:1)时 CTC 为356.2,倍硫磷与氰戊菊酯(5:1)混用 CTC 为708.4,均有明显增效作用。在农大小温室试验诱杀成虫证明用20×28.5cm~2黄板垂直挂在番茄植株顶部的支架上且黄板底边与植株顶部相平时效果最好。1987～1988两年在四季青温室番茄上对温室白粉虱的综合防治试验证明:在黄板的配合下,氰戊菊酯分别与虫螨磷和 SV_1混用,其防治效果均在84.5%以上,前一种混剂更好在91.6%以上。而喷药次数只需2～3次。单用氰戊菊酯,对成虫和卵、若虫的防治效果1987年分别为95.5%和73.5%,1988年分别为75.3%和35.9%,明显低于混剂的防效。试验还证明,黄板加上噻嗪酮,不仅用药量小(5.685有效成分 g/ha),而且其防治效果在94.8%以上。与综合防治相比,只用农药的常规防治法效果很差,1988年的结果表明对成虫的防效为11.6%,对卵和若虫的防效为26.7%。
The indoor toxicity test showed that the insecticidal phosphorus and fenvalerate (3: 1) mixed with a total co-toxicity coefficient (CTC) of 972.1, a significant synergistic effect. Synergistic phosphorus (SV_1) and fenvalerate (5: 1) mixed with a certain synergistic effect (CTC = 274.6). The LC 50 value of buprofezin was 0.01272 ppm, and the toxicity was significantly higher than that of fenvalerate (475.77 ppm for LC 50). CTC was 356.2 when the two were mixed (5: 1) Fenvalerate (5: 1) mixed with CTC 708.4, have significant synergies. It was proved that the adults were trapped vertically on the top of the tomato plant with 20 × 28.5cm 2 yellow board and the bottom of the yellow plate had the best effect on the top of the plant. The comprehensive prevention and control experiment of greenhouse whitefly on tomato in four season greenhouses from 1987 to 1988 proves that the combination of fenvalerate and insecticidin and SV_1 with the combination of yellow board and the control effect are all above 84.5% The former is better at more than 91.6%. The number of spraying only 2 or 3 times. The effect of fenvalerate alone on adult and eggs and nymphs was 95.5% and 73.5% respectively in 1987 and 75.3% and 35.9% respectively in 1988, which was significantly lower than that of mixture. The test also proved that the yellow plate plus buprofezin, not only small dosage (5.685 active ingredient g / ha), and its control effect of 94.8%. Compared with the integrated control, the conventional control method using only pesticides has a very poor effect. The results of 1988 show that the control effect on adults is 11.6%, and the control effect on eggs and nymphs is 26.7%.