生物农药防治棚室秋番茄病毒病效果探讨

为减轻番茄病毒病发生危害,减少化学农药用量、残留和环境污染,采用测报调查、随机区组设计和统计分析等方法,开展了生物农药香菇多糖 赤.吲乙.芸苔和宁南霉素 赤.吲乙.芸苔防治番茄病毒病农药田间药效试验。结果表明,在温室大棚秋季番茄病毒病发生较重情况下,每hm2用0.5%香菇多糖AS 3000mL 碧护WP 600g、8%宁南霉素AS 900mL 碧护WP 600g,7天施药1次,连续施用4次,药后10天、17天、26天和35天,防治效果均在88%、87%、78%和67%以上,且两药剂防治效果差异不显著,香菇多糖 赤.吲乙.芸苔极显著高于盐酸吗啉胍(对照药剂) 赤.吲乙.芸苔,宁南霉素 赤.吲乙.芸苔显著高于盐酸吗啉胍 赤.吲乙.芸苔。香菇多糖 赤.吲乙.芸苔和宁南霉素 赤.吲乙.芸苔不仅可以作为防治病毒病的理想药剂,而且可以作为现代农业示范区、无公害农产品、绿色农产品和有机农产品防治病毒病的理想药剂。

Effect of Biological Pesticides on Prevention and Treatment of Autumn Tomato Virus Diseases in Greenhouse

In order to alleviate the damage of tomato virus diseases, reduce chemical pesticide consumption and residue, and prevent environmental pollution, the methods of forecasting, randomized block design and statistical analysis were used in field efficacy tests of two biological pesticides of Lentinan Gibberellinheteroauxin-rassinolide (GHB) and Ningnanmycin GHB. The results showed that, when the autumn tomato virus disease was serious, 0.5% Lentinan AS 3000 mL GHB WP 600 g and 8% Ningnanmycin AS 900 mL GHB WP 600 g per hectare were applied for 4 times, once in 7 days, and the control effects on the 10th , 17th , 26th and 35th day were above 88%, 87%, 78% and 67%. The difference between the two biological pesticides was not significant, while the control effect of Lentinan GHB was significantly higher than that of moroxydine hydrochloride (CK) GHB, and the control effect of Ningnanmycin GHB was significantly higher than that of moroxydine hydrochloride GHB. These results indicated that Lentinan GHB and Ningnanmycin GHB were the ideal biological pesticides, which could be used not only for controlling tomato virus diseases, but also for realizing modern, pollution-free, green and organic agricultural production.