4种农药防治苹果黄蚜试验

试验结果表明,10%烯啶虫胺水剂速效性好,持效期长,是防治苹果黄蚜的优良药剂;50%抗蚜威可湿性粉剂速效性良好,持效期较长,也是防治苹果黄蚜的较好药剂;80%敌敌畏乳油与45%马拉硫磷乳油速效性好,但持效期较短,3 d以后药效开始下降。试验初步明确了4种药剂对苹果黄蚜的防治作用,为安全、合理使用和大面积推广提供了一定的理论依据。

Experiment of 4 Chemicals against Yellow Aphid in Apple

The experiment result showed:10% Nitenpyram.liquid had rapid and long control effect,so it is qualified chemical against yellowaphid in apple.50% Pirimicarb wetable powder also had rapid and durable effect and it is also qualified chemical against yellow aphid in applel;while 80% DDVP and 45% Malathion emulsion had rapid but rather short effect,which means their effect declined in 3 days.The experiment demonstrated that the control effect of these 4 chemicals and supplied theoritical basis for safe and proper use and extension in large area.