论文部分内容阅读
神泽氏叶螨在蚕、碗豆上分布因时期而异，生长前期，中上部叶片虫口占７８．８２％（１１月７日），１２月以后，中上部叶片虫口占７．５％（１２月７日），到１月份，中上部叶片几无叶螨，３月初，中上部叶片虫口率又有回升。田间平面分布呈聚集状态。越冬情况，在露地和小拱棚内有差异，小拱棚内叶螨休眼比露地迟得多。其冬季寄主植物很多，本试验新发现了７科２３种植物为该叶螨的冬季寄主，其中以双子叶植物占绝大多数。
Spider mites in the silkworm, pea beans on the distribution of different periods, early growth, the upper leaves of the upper leaves accounted for 78.82% (November 7), after December, the upper leaves of the upper part of 7.5% ( December 7). Until January, there were few spider mites in the middle and upper leaves. In early March, the insect population in the middle and upper leaves returned again. The field distribution was aggregated. Overwintering situation, there are differences in the open field and small arch shed, small arch shed leaves eye mite eye much later than the open field. There are many host plants in winter. In this experiment, 23 families of 7 families were newly discovered as winter hosts of the spider mites, of which dicotyledons accounted for the vast majority.