近年来,白粉虱已成为杜鹃花的一大虫害。气候温和的沪杭一带。尤为严重。白粉虱,又名柑桔粉虱、通草粉虱和温室粉虱,白色,有两对白色的翅膀。成虫及蛹随杜鹃花进入暖棚,寄生在叶背越冬。约四五月间羽化,在杜鹃新发枝叶的背上产卵孵化,刺吸液汁,使新枝叶卷缩、枯 In recent years, whitefly has become a major pest of azaleas. Shanghai and Hangzhou mild climate in the vicinity. Especially serious. Whitefly, also known as citrus whitefly, through whitefly and whitefly, is white and has two pairs of white wings. Adult and pupa with rhododendron into the warm greenhouse, parasitic in the back of the winter. Feather around April and May, spawning hatch on the back of new branches of rhododendron, sucking liquid juice, so that the new branches and leaves crimp, dry