摘要
为了筛选出适合在枞阳县水稻稻飞虱防治中推广的药剂及浓度,特选择了质量分数为25%吡蚜酮悬浮剂、80%烯啶·吡蚜酮水分散粒剂、50%呋虫·噻虫嗪水分散粒剂、10%三氟苯嘧啶悬浮剂等药剂开展了药效研究。结果表明:各药剂处理下均未见到明显的药害,安全性好,10%三氟苯嘧啶悬浮剂对稻飞虱防治的效果好于其他3种药剂,其速效性好、持效性佳,并且随着剂量加大防治效果呈现增加趋势,其中剂量240、360 mL/hm^(2)防效都达到97%以上,2种处理之间防效差异不明显(相差0.2%),但1 hm^(2)用药成本却相差50%。因此,结合药剂防效与成本等因素,在当地水稻实际生产中建议使用10%三氟苯嘧啶悬浮剂240 mL/hm^(2)对稻飞虱进行全程防治。
In order to select the medicament and concentration suitable for promotion in the control of rice planthopper in Zongyang County, 25% pyrimidine suspension, 80% pyrimidine · pyrimidine water dispersion, 50% furfuran · thiamethoxam water dispersion and 10% trifluoromethyl pyrimidine suspension are selected for the efficacy study. The results shows that no obvious harm is seen under each treatment, and the safety is good. The control effect of 10% trifluoropyrimidine suspension on rice planthopper is better than that of the other three agents, with good quick effect and good sustained effect. The control effect shows an increasing trend with the increase of the dose. The control effect of 240 and 360 mL/hm^(2)reached more than 97%. The difference between the two treatments is not obvious(difference of 0.2%), but the cost of 1 hm^(2)is 50%. Therefore, in combination with the control effect and cost, it is suggested to use 10% trifluoropyrimidine suspension 240 mL/hm^(2)to control rice planthopper in the actual production of local rice.
作者
王志信
Wang Zhixin(Huigong Town Agricultural Service Station of Zongyang County,Zongyang 246700,Anhui,China)
出处
《农业技术与装备》
2022年第8期35-37,共3页
Agricultural Technology & Equipment
关键词
稻飞虱
药剂
防效
防治
三氟苯嘧啶悬浮剂
rice planthopper
medicament
prevention effect
prevention and cure
Trifluorophenylpyrimidine suspension
