侧枝匐灯藓的种植年限对越冬角倍蚜成活率的影响

在竹片载体湿软的砂壤泥上,以较细密的网状分布栽培侧枝匐灯藓老枝,并使其有机结合泥土。苔藓生长基本满盘后,在相同的地理环境,以相同的管理模式,对不同种植年限的苔藓释放秋迁蚜,研究苔藓的种植年限对越冬角倍蚜成活率的影响。结果表明:当年种植的A组苔藓,其上蚜虫越冬成活率达45%;栽培时长一年多的B组苔藓,蚜虫越冬虫口数较A组有明显下降,越冬成活率为36%;栽培时长两年多的C组苔藓,蚜虫越冬成活率仅15%,同A组对比,下降了30%。

Effects of planting age of Plagiomnium maximoviczii on overwintering survival rate of Schlechtendalia chinensis

Plagiomnium maximoviczii,the host of Schlechtendalia chinensis,was cultivated into network and organically integrated with muddy sand soil over bamboo.After plates was full of P.maximoviczii,under the same geographical environ-ment and management mode,autumn migrant S.chinensis was released into different planting ages of P.maximoviczii,to study the impacts of planting ages on overwintering survival rate of S.chinensis.Results showed that the survival rate of over-wintering S.chinensis was 45%on group A when P.maximoviczii was planted at the same year,while the survival rate was declined to 36%on group B when P.maximoviczii was planted for over a year.The survival rate of overwintering S.chinensis was 15%on group C when P.maximoviczii was planted for over two years,which dropped 30%compared to group A.