Effects of Fungicides and Spray Application Interval on Controlling Marssonina Blotch of Apple in the Loess Plateau Region of China
Effects of Fungicides and Spray Application Interval on Controlling Marssonina Blotch of Apple in the Loess Plateau Region of China
复制标题
黄土高原地区杀菌剂及喷施间隔对苹果褐斑病防治效果
DOI：
10.1094/pdis-04-16-0464-re
复制
发表时间：
2017-04-01
期刊：
影响因子：
4.5
通讯作者：
Sun, G. Y.
中科院分区：
文献类型：
--
作者：
Dang, J. L.;Gleason, M. L.;Sun, G. Y.
马氏斑病是由真菌马氏斑病引起的，是东亚以及亚洲、欧洲和南美洲其他温润温带地区苹果的一种严重叶面疾病。研究了几种杀菌剂对病原菌菌丝生长和孢子萌发的体外毒性。戊康唑、甲基克雷索辛、六康唑、丙环康唑和戊康唑与苯并噻唑啉酮的混合物对菌丝生长有明显的抑制作用，但对孢子萌发的影响较小。研究人员于2012年、2013年、2014年和2015年在中国陕西省白水县的一个商业果园进行了田间试验，为苹果种植者提供建议。从7月初到8月下旬，每隔20天施用三次戊康唑、六康唑、丙环康唑或戊康唑与苯并噻唑啉酮的混合物，导致落叶发生率为
Marssonina blotch, caused by the fungus Marssonina coronariae, is a serious foliar disease on apple in East Asia as well as in other moist temperate regions in Asia, Europe, and South America. Several fungicides were investigated for their toxicity to mycelial growth and conidial germination of the pathogen in vitro. Tebuconazole, kresoxim-methyl, hexaconazole, propiconazole, and a mixture of tebuconazole and benziothiazolinone sharply inhibited mycelial growth but had less effect on conidial germination. Field tests were conducted in a commercial orchard in Baishui County, Shaanxi Province, China, during 2012, 2013, 2014, and 2015 in order to develop recommendations for apple growers. Three applications of tebuconazole, hexaconazole, propiconazole, or a mixture of tebuconazole and benziothiazolinone at 20-day intervals from early July to late August resulted in defoliation incidence of