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辣椒疫病是辣椒上的一种重要病害。辣椒得病后,发病迅速,大量死秧,常常造成大面积绝产,已经成为限制辣椒生产的重要因素。为了控制此病危害,特对辣椒疫病发生规律及防治技术介绍如下: 1.症状辣椒幼苗和成株均可发病。幼苗发病多在茎基部出现水浸状软腐,茎上部迅速倒伏。成株发病,叶片上可产生暗绿色水浸状病斑,后扩大使叶片的一部分或大部分软腐,容易脱落。茎部病斑暗褐色,病斑发展绕茎一周引起病茎以上部位死亡,根部发病,最显著的特征是拔起病株则发现茎基部病斑绕茎一周。部分根系沤烂死亡。严重时植株枯萎,引起大面积死亡。
Pepper blight is an important disease on pepper. Chili is sick, the rapid onset, a large number of dead seedlings, often resulting in a large area of junk, has become an important factor limiting pepper production. In order to control the harm of the disease, especially on the peppery disease and prevention and control of the law described as follows: 1 symptoms pepper seedlings and adults can be disease. Emergence of seedlings and more in the base of the stem appeared soft-soaked in water, stem quickly lodging down. Adult disease, the leaves can produce dark green flooded lesions, after the expansion of the leaves of most or soft rot, easy to fall off. Stem spot dark brown, spot development around the stem around the stem caused by the death above the disease, the root of the disease, the most prominent feature is the pull up the diseased stems found around the stem base lesions a week. Some root rotten death. Severe plants withered, causing a large area of death.