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喷克(mancozeb)80%可湿性粉剂600倍、800倍、1000倍室内对苹果轮纹病(Physalosporapiricola)抑菌效果均达100%,600倍、800倍对苹果斑点落叶病菌(Alternariamali)、炭疽病菌(Glomerelacingulata)亦具显著的抑制效果。人工接菌条件下,800倍液防治苹果斑点落叶病的实际保护期为10~12d,防治苹果轮纹病的有效保护期为8~10d。田间药效试验示范表明:喷克80%可湿性粉剂与波尔多液交替使用,对苹果轮纹病、炭疽病和斑点落叶病具有显著的兼治作用,推荐剂量为800倍液,施药适期为苹果幼果期(谢花后~6月初,连续喷施3次)和着色期(8月中旬~9月中旬,连喷2次)。
The antibacterial effect of mancozeb 80% wettable powder at 600, 800 and 1000 times on Physalospora piricola were 100%, 600 and 800 times higher than that on Alternariamali, Pathogens (Glomerelacingulata) also have a significant inhibitory effect. Under the conditions of artificial inoculation, the actual protection period of 800 times of apple tree spotted leaf decay prevention and cure was 10-12 days, and the effective protection period of prevention and treatment of apple ring disease was 8-10 days. The demonstration of field efficacy test showed that spraying Spray 80% wettable powder and Bordeaux mixture alternately had significant side effects on apple ring disease, anthracnose and speckle leaf disease. The recommended dosage was 800 times, Apple young fruit (thank flowers ~ early June, spraying 3 consecutive times) and the coloring period (mid-August to mid-September, and even spray 2).