アブラムシおよびオンシツコナジラミの天敵糸状菌 Verticillium lecanii (Zimm.) Viegasの分離

概要

論文の詳細を見る
In 1982-83, it was observed that three species of aphids, Myzus persicae, Aphis gossypii, Brevicoryne brassicae, and the greenhouse whitefly, Trialeurodes vaporariorum, were affected by white fungal mycelia which had covered insect body in a greenhouse of the Hokkaido National Agricultural Experiment Station. Further study has revealed that this fungus is to be referred to Verticllium lecanii (Zimm.) Viegas which has never been reported in Japan. Within the isolates of V. lecanii from these insect species, three different types were recognized ; white mycelial type which grows faster with linear colony margin, yellow mycelial type growing comparatively slow with undulate or dendroid colony margin, and another white mycelial type moderately fast growing with undulate or dendroid colony margin. The fungus is pathogenic only to insects while not to plants ; high affection rates of insects were shown by the inoculation with the fungus which had been isolated from the same insect species, at least seven days after inoculation. A series of insect controlling test in a greenhouse showed that isolates from different insect species can similarly affect Aphis gossypii and the greenhouse whitefly within two or three weeks after inoculation. From these results, it is very likely that this fungus can be effectively utilized to control aphids and the greenhouse whitefly in Japan.
日本植物病理学会の論文
1984-12-25