温室白粉虱在蔬菜田的发生消长规律和防治试验

田间调查表明,温室白粉虱在蔬菜田的发生可分为春季始迁期、春夏缓增期、夏季峰值期、秋季减退期和越冬回迁期5个时期。各种虫态在大棚内均可周年繁殖为害,露地蔬菜田发生期为4~11月。黄板诱杀可消灭大量成虫;叶面喷洒粉虱通杀防治效果良好。

Occurrence Rule and Control Technology of Vegetables Trialeurodes vaporariorum

Through the investigation and study to Trialeurodes vaporariorum,grasping the increase and decrease of whitefty,it has the time of spring beginning to move,the slow growth time in spring and summer,the peak value time in summer,the decrease time in autumn and the returning time in overwintering.Each kind condition of insect may reproduce and harm all years in the greenhouse,It is occurrence from April to November on the field vegetables.It is can be killed massively by using the yellow board and suffocating by DDVP.The effect of preventing and controlling larva is the best by Abamectim or complex of Abamectin and DDVP for spray on the leaf.