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果园内病原菌孢子散发盛期在6-8月份,其孢子散发数量与降雨多少成正相关。轮纹烂果病菌从坐果初期即开始侵染,8月上旬以前为重点侵染时期,6-7月为侵染盛期。幼果至果实迅速膨大期最易感病。被侵染的果实近成熟期开始发病,贮藏一个月内发病最多。潜育期为12-126天。8月中旬前,果实发病程度与降雨关系极为密切,衰弱树感病重。苹果品种间抗病性有明显差异。早春对病枝干刮皮比不刮皮者病果率减少25.8%;发芽前对枝干喷布70%甲基托布津可湿粉400倍液混加l00倍平平加,40%福美砷100倍液和涂抹5%轮纹净3倍液等,对铲除枝干菌源均有较好效果。生长期保护果实效果较好的药剂有50%多菌灵800倍液;70%甲基托布津1500倍混加80%炭疽福美600倍液和50%多福500倍液等。这些有机杀菌剂只有与240倍波尔多液配合使用,才能收到较好防治效果。果实套袋防效最佳,可达99.4%。
In the orchard, the spore germination of pathogens in June-August, the number of spores and rainfall is positively correlated. Rotten fruit rot rot bacteria that begin early fruit that began to infiltrate in early August before the focus of the infection period, June-July is the peak of infection. Young fruit to fruit swelling is most susceptible. Infected fruit near maturity onset, the most incidence of storage within a month. The incubation period is 12-126 days. Before mid-August, the relationship between the incidence of fruit and rainfall was extremely close, and the diseased tree was seriously ill. There was a significant difference in disease resistance among apple varieties. In early spring, the disease rate of branches and peels was reduced by 25.8% compared with that of non-skinned peels; before germination, branches and stems were sprayed with 70% thiophanate-methyl-wettable powder 400 times and mixed with 100 times normal levels and 40% Arsenic 100 times and smear 5% round grain net 3 times, etc., have good effect on the removal of sticks source. Growth of fruits to protect the better effect of the drug is 50% Carbendazim 800 times; 70% thiophanate-methyl 1500 times 80% anthrax mixed with the United States and the United States 600 times 500 times Fortune 500 times and so on. These organic fungicides only with 240 times Bordeaux mixture in order to receive better control effect. Fruit bagging the best anti-effect, up to 99.4%.