苹果黑星病施药适期研究  

Study on Suitable Period of Chemical Control of Apple Scab

作　　者：史广亮 SHI Guang-liang(Pingliang Academy of Agricultural Sciences,Pingliang,Guansu 744000)

机构地区：[1]平凉市农业科学院,甘肃平凉744000

出　　处：《安徽农业科学》2024年第19期127-128,132,共3页Journal of Anhui Agricultural Sciences

基　　金：平凉市科技计划项目(平科任[2021]23号)。

摘　　要：采用田间小区试验方法,测定4个不同首次施药时间苹果黑星病的防治效果,从苹果花露红期开始按照苹果生育时期分别进行首次喷药处理(T_(1)、T_(2)、T_(3)、T_(4)和清水对照CK)。各处理每间隔10 d喷药一次,共5次。结束喷药后第10天和第30天调查苹果黑星病的病情级别,计算病叶率、病情指数和防治效果。结果表明,防治苹果黑星病的适宜时期是在苹果花露红期首次施药,防效最高达98.22%,极显著高于其他处理。The field plot test method was used to determine the control effect of four different first spraying time on apple scab.From the apple flower dew red period,the first spraying treatment was carried out according to the best period of apple growth(T_(1),T_(2),T_(3),T_(4) and water control CK).Each treatment was sprayed once every 10 days for a total of five times.The disease level of apple scab was investigated on the 10 th and 30 th day after the end of spraying,and the disease leaf rate,disease index and control effect were calculated.The suitable period for screening out the best control of scab was the first application at the apple flower red stage,and the control effect was 98.22%,which was significanly higher than other treatments.

关 键 词：黑星病 吡唑醚菌酯 喷雾 

分 类 号：S436.611.1[农业科学—农业昆虫与害虫防治]