イヌツゲに寄生するミカンハダニのナシ園への侵入

概要

論文の詳細を見る
The seasonal occurrence of the Citrus Red Mite, Panonychus citri (McGREGOR), on an evergreen host tree, Irex crenata THUNB. was investigated. The population increased rapidly during the spring and peaked in late May. Towards late May and early June, many adult females drifted on webs from the 1.crenata tree, and some reached a neighboring Japanese-pear orchard. The dispersed mites maintained their population density around the landing sites until summer, and then gradually increased in number in the pear orchard. On pear trees near the Irex tree, the number of mites increased from early summer and eventually produced bimodal population peaks in summer and autumn. On the other hand, mites on trees a long way from the source tree showed a low increase in numbers until late August, but then increased rapidly in autumn causing a single peak.
日本応用動物昆虫学会の論文
1993-05-25