摘要
苦参（Sophora flavescens）是我国传统中药材,也是开发生物农药的主要植物之一,但其病虫害鲜有研究。为应对人工驯化栽培可能面临的病虫害风险,本研究调查了兰州地区2个实验点上盆栽苦参和大田栽培苦参上病虫害的种类及其发生规律,共发现2种真菌性病害和1种食叶害虫,其中苦参白粉病（Oidium sp.）在大田栽培的河北苦参上的发病率为6%-30%,河南、岷县和成县苦参上均小于2%,而盆栽岷县苦参上高达96.4%,7月开始发病,9月中旬发病率最高。苦参叶斑病（Phyllosticcta sophoricola）仅见于大田,发病率为5%-34%,主要在7月发病。野螟（Uresiphita sp.）主要取食叶片,92%的植株受害,每株平均4.5头,8月下旬至9月上旬危害最重,其幼虫受黄带姬蜂（Ichneumon generosus）寄生,寄生率为30%。
Sophora flavescent is Chinese traditional herb medicine as well as the main plants that are used in the production of biopesticides.However,very rare studies on its diseases and insects are available.This study researched the major species and dynamics occurrence of diseases and insects on potted S.flavescens and field cultivation plants in experimental stations of Lanzhou area,in order to cope with the risk of diseases and insects in the process of culturing the plant.The results found that two fungal diseases and one defoliating insect,in which disease incidence of powdery mildew（Oidium sp.） in field experiment on S.flavescens from Hebei was 6%~30%,and less than 2% from Henan,Min county and Cheng county of Gansu.While,94.4% potted plants from Min county were infected.The disease appeared in July,and peaked in middle September.Leaf spot（Phyllosticcta sophoricola） only found in field experiment,5%~34% plants infected.The disease mainly occurred in July.A moth,Uresiphita sp.attacked 92% plants with an average of 4.5 larvas on each plant.This harmful insect mainly consumed leaves during late August to early September.Fortunately,30% of their larvas were parasitized by Ichneumon generosus.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第10期142-148,共7页
Pratacultural Science
基金
甘肃省科技攻关项目(2GS064-A43-018-08)
关键词
苦参
苦参叶斑病
苦参白粉病
生物农药
中草药
Sophora flavescens
Phyllosticcta sophoricola
Oidium sp.
botanic pesticide
Chinese traditional herb medicine
