有机柑橘种植中五种溃疡病防治药剂作用评价

Effects of Five Bactericides for Controlling Xanthomonas axonopodis pv.citri in Organic Citrus Orchard

通过田间药效试验筛选防治柑橘溃疡病(Xanthomonas axonopodis pv.citri)的有效有机药剂,以清水为对照,工农-16型背负手摇喷雾器喷雾,以咪鲜.松、代森铵和叶青双作比较,对比研究了硫酸铜钙、噻菌铜、四霉素、春雷霉素与王铜混配剂、水胆矾和两水硫酸钙结合体等5种杀菌剂对柑橘溃疡病的防治效果。结果表明,硫酸铜钙、噻菌铜防治效果较好,与咪鲜.松相当,四霉素、春雷霉素与王铜混配剂(加瑞农)、水胆矾和二水硫酸钙结合体防治效果较差,低于代森铵和叶青双;首次对上述药剂的抗雨水能力进行了评价,结果表明,加瑞农、咪鲜.松抗雨水能力最强,其次是硫酸铜钙、水胆矾和两水硫酸钙结合体,噻菌铜、四霉素效果较差,代森铵、叶青双最差。试验中各处理均无药害产生。

Compared with Prochloraz·copper rosin,Ambam,Bismerthlazol and water,the effects of Copper calcium sulphate,thiodiazole-copper,Tetramycin,Kasugamycin and Copperoxychloride mixture,bordeaux mixture for controlling Xanthomonas axonopodis pv.citri in organic citrus orchard were studied to filter out effective organic medicament by 16 worker carrying hand-type sprayer.The results showed that Copper calcium sulphate and Thiodiazole-copper had good effects corresponding to Prochloraz·copper rosin.Tetramycin,Kasugamycin and Copperoxychloride mixture,Bordeaux mixture came the second and were worse than Ambam and Bismerthlazol.It was the first time to assess the ability against washing from rainfall of the above medicament.Among the eight medicaments,Kasugamycin-copperoxychloride mixture and Prochloraz·copper rosin were the best;Copper calcium sulphate and Bordeaux mixture came the second.Each treatments in the process of trials didn＇t produce phytotoxicity.