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一、发生危害情况北票市绿豆病虫害主要有根腐病、叶斑病、病毒病、豆荚螟、蚜虫、蛴螬等10多种。近年来以绿豆根腐病、叶斑病、蚜虫、豆荚螟及蛴螬对绿豆危害较重。1.绿豆根腐病北票市绿豆的主要病害,一般病菌在苗期侵染根茎部,使其变为褐色或黑褐色,植株矮小枯萎,成株期受害通常表现为慢性症状,地上部枯萎,叶片逐渐失水褪绿、变黄,根茎部主根上出现凹陷、长条形病斑,随病斑发展至整个主根,植株逐渐枯萎死亡。
First, the occurrence of hazardous situation Pesticides and pests in Beipiao City are mainly root rot, leaf spot disease, viral disease, pod borer, aphids, slugs and other 10 kinds. In recent years, mung bean root rot, leaf spot, aphids, pod borer and catfish on the mung bean harms heavier. 1. Mung bean root rot Beipiao Mung bean main diseases, the general pathogen infection in the rhizome Ministry of seedling, making it brown or dark brown, withered plants dwarf, adult lesions usually manifested as chronic symptoms of wilt , The leaves gradually chlorosis, yellowing, roots appear root depression, strip-shaped lesions, with the lesion to the entire main root, the plant gradually wilt death.