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板蓝根为常用中药,具有清热解毒,凉血消肿等功效。近年来随市场销售量的不断增加,栽培面积逐年扩大。然而,由于板蓝根病虫害严重而导致减产降质。而由于滥用农药,不仅严重影响了药材品质,而且还威胁着人体的健康。为了防止农药污染,探索有效的无公害规范化措施,我们于1985-1987年对板蓝根病虫害种类、发生规律及防治技术进行了调查研究,并作了示范推广,其结果简述如下: 一、主要病虫害及发生规律 1、病害。主要有板蓝根霜霉病、黑斑病。(1)霜霉病菌既可以卵孢子在病残体内越冬,又可以菌丝体在留种株组织内越冬,翌春
Banlangen is commonly used traditional Chinese medicine, with detoxification, cooling blood and other effects. In recent years, with the increasing market sales, cultivation area expanded year by year. However, due to the serious diseases and diseases of the root causes of Banlangen, the production and quality are reduced. However, the abuse of pesticides not only seriously affects the quality of medicinal materials, but also threatens the health of the human body. In order to prevent pesticide pollution and to explore effective measures to standardize pollution-free, we conducted a survey and study on the types, occurrence rules and prevention and treatment of Banlangen pests and diseases in 1985-1987 and made some demonstration and popularization. The results are summarized as follows: I. Major pests and diseases And the occurrence of a law, disease. There are mainly Banlangen downy mildew, black spot disease. (1) Downy mildew can both oospores in the wretched body overwintering, but also mycelium stay in the plant species of winter, the next spring