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甜椒疫病是一种急性发生的毁灭性病害,我区在1989年仅零星发生,随后迅速蔓延,死株率1990年10%,1991年达50%左右,对菜农收入和市场供应带来严重影响。为此,我们对甜椒疫病的发生规律和防治进行了专项调查和试验。现将结果介绍如下:一、症状甜椒疫病在4月底后的成株期开始发生。病原菌通过气流,雨水和农事活动传到易积水的植株幼嫩部位而成发病中心,初次侵染部位以分枝为主,
The sweet pepper disease is an acute and devastating disease. My district only sporadically occurred in 1989 and then spread rapidly. The death rate was 10% in 1990 and about 50% in 1991, which seriously affected the income and market supply of vegetable farmers influences. To this end, we conducted a special investigation and test on the occurrence and prevention of sweet pepper blight. The results are described below: First, the symptoms of sweet pepper disease at the end of April after the onset of the adult. Pathogenic bacteria through the air, rain and agricultural activities spread to the young parts of easy to accumulate water into the center of the disease, the initial infection of the site to branch-based,