杀虫剂“围剿”及其复配对稻飞虱的防治效果试验

Control Effects of Pesticide“Weijiao”and its Compounds on the Rice Planthopper

以硫丹+金虱铲为对照,在上饶市横峰县对围剿及与金虱铲或扫施复配对稻飞虱的防治效果进行了试验研究。结果表明,不同试验处理间的防虫效果存在显著差异,防治效果为围剿+金虱铲(97.28%)>围剿+扫施(94.48%)>单施围剿(90.57%)>硫丹+金虱铲(75.88%)。不同农药复配的成本存在差异,成本大小为硫丹+金虱铲(270元/hm^2)>围剿+扫施(255元/hm^2)>围剿+金虱铲(210元/hm^2)>单施围剿(75元/hm^2)。综合考虑,水稻生产上,采用围剿防治稻飞虱最好与金虱铲复配使用,每hm^2施用量为围剿375g加金虱铲900g,药液量225kg。

The compound of endosulfan and＂Jinshichan＂was as the eontrgl, the control effg^ts of＂Weijiao＂ag~,＇Jir^- shichan＂ or＂Saoshi＂ on rice planthopper were investigated in the Her^gfeng County of Shangrao City. The resta!ts showed that the control effects of different treatments existed significant differences, the order of effects from high to low was＂Weijiao and Jinshichan＂ （97.28%） 〉 ＂Weijiao and Saoshi＂ （94.48%） 〉 ＂Weijiao＂ （90.57%） 〉 ＂endosulfan and Jinshichan＂ （75.88%）. The costs of different compounds were different, the order from high to low was＂endosul- fan and Jinshichan＂ （270 yuan per hectare） 〉 ＂Weijiao and Saoshi＂ （255 yuan per hectare） 〉 ＂Weijiao and Jin- shichan＂ （210 yuan per hectare） 〉 ＂Weijiao＂ （75 yuan per hectare）.It was the comprehensive consideration that the compound of 375g Weijiao and 900g Jinshichan per hectare with 255kg weight of water would be used to control rice planthopper in rice production.