论文部分内容阅读
对天津地区苹果枝干病原菌的主要种群进行了初步调查。６个不同地点果园主要真菌类群有：大茎点属Ｍａｃｒｏｐｈｏｍａ、球壳孢属Ｓｐｈａｅｒｏｐｓｉｓ、葡萄座腔菌属Ｂｏｔｒｙｏｓｐｈａｅｒｉａ、单隔孢属Ｂｏｔｒｙｏｄｉｐｌｏｄｉａ、壳囊孢属Ｃｙｔｏｓｐｏｒａ等，且以Ｍａｃｒｏｐｈｏｍａ出现的频率最高。经对苹果轮纹病室内药剂筛选结果分析，美国杜邦公司生产的福星杀菌剂抑菌效果最优，其次为轮纹特、甲基保果安、退菌特、福美双、代森锰锌、大生多菌灵等药剂。同时发现，大茎点菌对甲托、百菌清已产生了一定程度的抗药性。
The main populations of apple tree pathogens in Tianjin were investigated. The main fungal groups in 6 different orchards were Macrophoma, Sphaeropsis, Botryosphaeria, Cytospora and so on. Macrophoma appeared most frequently. The results showed that the antibacterial effect of Fuxing fungicides produced by DuPont in USA was the best, followed by rotifers, methyl guanobu, benomyl, thiram, mancozeb, Students Carbendazim and other drugs. Also found that the large stem bacteria on the care, chlorothalonil have produced a certain degree of resistance.