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以天山野苹果林苹果小吉丁虫为调查对象,采用野外调查、采样和室内分离、鉴定相结合的方法,研究了天山野苹果林苹果小吉丁虫的危害程度及其虫生真菌的种类。结果表明:新源县苹果小吉丁虫虫口密度为0.76头·m~(-1),巩留县为2.72头·m~(-1);导致苹果小吉丁虫死亡的原因排序为物理致死>天敌寄生>真菌侵染>其它;从56份样本中分离得到41株真菌,隶属于4目7属,其中曲霉属(Aspergillus)和链格孢属(Alternaria)真菌数量最多;不同季节样本中都分离到了虫生真菌,夏季得到的真菌种类和数量最多。天山野苹果林苹果小吉丁虫中存在一定数量的虫生真菌,应将虫生真菌作为苹果小吉丁虫生物防治的新方法,进行更加深入的研究。
Taking Tiandan apple as the research object, we studied the harmfulness of the apple and its entomopathogenic fungi by using field investigation, sampling and indoor separation and identification. The results showed that the population density of Nephotettix ginseng was 0.76 m · m -1 and that of Gongliu county was 2.72 m · m -1. 41 parasitic fungi were isolated from 56 samples and belonged to 4 orders and 7 genera, of which Aspergillus and Alternaria had the highest number of fungi. Among the samples collected from different seasons Insect fungi were isolated, and the largest number and type of fungi were obtained in summer. Tianshan wild apple forest apple jiading bug in a certain number of entomopathogenic fungi, should be used as apple jelly worm fungi biological control of a new method for more in-depth study.