1 发生规律 每年10月下旬以后,气温下降,白粉虱从露地向温室迁移,为害或越冬;翌年3月上、中旬以后,通风时成虫从通风口、门窗迁飞到室外阳畦露地蔬菜及杂草上;8月上、中旬白粉虱再次迁飞扩散到晚秋植物上繁殖为害;10月下旬以后又向温室大棚转移,这样就形成温室白粉虱的周年生长与繁殖。白粉虱的主要寄主植物是黄瓜、茄子、辣椒、西红柿,也为害其它蔬菜花卉、果树、药材等。 温室白粉虱成虫具有趋嫩性、趋黄性,喜 1 occurs after the end of October every year, the temperature drops, whiteflies from the open field to the greenhouse migration, damage or overwintering; the following year in March after the mid-to late, the ventilation of adults from the vents, doors and windows to the outdoor open-air vegetables and weeds On August; in mid-August, whitefly again flew to disperse to plant on the late autumn to harm the plant; in late October and later transferred to the greenhouse, thus forming the greenhouse annual growth and reproduction of whiteflies. The main host plant of whitefly is cucumber, eggplant, peppers, tomatoes, but also harm other vegetables and flowers, fruit trees, herbs and so on. Greenhouse whitefly adults tend to tendentious, yellowish, hi