黄板对温室黄瓜2种害虫的防效及对农残的控制效果

以目光温室黄瓜斑潜蝇和白粉虱为例，研究了黄板不同悬挂高度、位置、密度的诱虫效果和对农残的控制作用。结果表明，斑潜蝇成虫的诱杀量以在黄瓜植株中上部居多，白粉虱成虫则以中下部的诱杀效果较好；在目光温室的中后部诱杀的两种害虫数量多。田闻放置黄板的数量以450片／hm^2较为经济有效。害虫初发期使用黄板，能够减少农药使用次数2～3次，可达到单纯使用杀虫剂的防效，有效降低了农药残留。

Control Effect of Yellow Sticky Boards on Pesticide Residues and Two Species of Cucumber Pests in Greenhouse

The experiments made leafminer and Trialeurodes vaporariorum for the main object in greenhouse, studied the Control effect of yellow sticky boards on pestcide residues and the attracting effect that were put the different height ,place and quantity. The results showed that the yellow sticky boards can catch more adults of leafminer in middle and upper part of cucumber, but for Trialeurodes vaporariorum, the better part is mid lower. In greenhouse, the more adults were caught in mid and backside. The study also indicated that it was more economical and effective that yellow boards were put 450 pieces/hm^2 in field. During the emergence of pests, the times of using pestcide could reduced 2 or 3 by yellow boards, and the amount of pestcide residue would become much less.