炭疽病是本区瓜类作物的主要病害之一,对产量、品质影响很大。为了优选药剂和施药方法,1987年4至9月作者选用年初室内平皿筛选出的高效药剂,采用不同施药方法进行了西瓜田间防效试验研究初步探讨。现将结果总结如下。一、处理和方法本试验采用裂区设计,施药方法(2种)为主区,药剂种类(5种+对照)为副区,随机排列,重复三次,主、副区处理及药剂使用浓度如表1。 Anthracnose is one of the main diseases of melon crops in this area, affecting yield and quality greatly. In order to optimize the medicament and application method, from April to September, 1987, the author selected the high-efficiency medicaments selected from the early-stage in-house petri dishes and conducted preliminary study on the field effect prevention and control of watermelon with different application methods. The results are summarized below. First, the treatment and methods In this experiment, split zone design, application methods (2 kinds) as the main area, the types of agents (5 + control) as a sub-area, randomized, repeated three times, the main, deputy district and drug concentration Table 1.