摘要
粉质拟青霉Paecilomyces farinosus (Dicks.ex.Fr.)Brown et Smith是竹织叶野螟越冬幼虫的重要病原菌,林间自然发病率为23.08％～42.84％。用5.5×10~6/ml孢子悬液感染越冬幼虫,死亡率达91.7％。在24～26℃下,病程约10～14d。林间罹病虫尸上,可见粉质拟青霉被寄生黑孢壳Melanospora parasitica Tulasne寄生。本文还从病原菌的生理性质及侵染环境的角度,讨论了疾病的流行条件和病原菌利用的前景。
Paecilomyces farinosus (Dicks. ex. Fr.) Brown et Smith is an important pathogenetic fungi for overwintering Algedonia coclesalis Walker larva, natural disease incidence in forest is about 23.08%～42.84%. Mortality of overwintering larva infected by spore suspension with 5.5×10~6/ml reached 91.7%. The course of disease under 24～26℃ was about 10～14 days. It could be found that Paecilomyces farinosus (Dicks. ex. Fr.) Brown et Smith were parasited by Melanospora parasitica Tulasne in dead insect bodies. Epidemic conditions of this disease and prospect of the utilization of pathogenetic fungi were discussed with physiological characters of pathogenetic fungi and infection environment.
出处
《竹子研究汇刊》
北大核心
1993年第3期13-19,共7页
Journal of Bamboo Research
关键词
竹织叶野螟
越冬幼虫
真菌病
Paecilomyces farinosus (Dicks. ex. Fr.) Brown et Smith
Algedonia coclesalis Walker overwintering larva
Melanospora parasitica Tulasne
