摘要
于1996～1999年,对四川省的洪雅、安县、绵竹等市、县的稻秆潜蝇进行调查及防治研究,结果表明:稻秆潜蝇在四川的越冬寄主主要是禾本科杂草看麦娘,虫穗率平均为0 25%;其次为小麦,虫穗率为0 07%。稻秆潜蝇冬季主要在免耕油菜田、小麦田的看麦娘上危害为主,虫穗率平均为0 40%;而马苕田、田边、沟边等处看麦娘杂草上次之,虫穗率为0 06%。用"蜀农"种衣剂与种子的比例1∶75、1∶50和1∶25包衣,平均防效分别为66 80%、79 63%和84 67%,其防治效果均显著高于锐劲特900mL/hm2喷雾和吡虫啉600g/hm2喷施、1200g/hm2撒毒土的效果;按种衣剂与种子1∶50～1∶25的比例处理,防治稻秆潜蝇的效果与剧毒农药呋喃丹相当。经在锦竹、洪雅、眉山、金堂、郫县、天全、江油、安县等25个市、县进行大面积应用示范,均获得了防治稻秆潜蝇的良好效果。
Investigation on rice stem maggot was conducted in Hongya,Anxian,Mianzhu counties in 1996 to 1999.Results showed that the main wintering host plant in Sichuan for rice stem maggot was grass Alopecurus atquals on which the average occurrence rate was 0.25?%,the second winter host plant was wheat on which the average occurrence rate was 0.07?%;rice stem maggot mainly damaged Alopecurus atquals plants in no-tillage rapeseed fields with occurrence rate 0.40?%,secondly Alopecurus atquals plants in green manure fields,on the edge of the fields and the furrows with occurrence rate 0.06?%.Rice seeds were treated with'Shunong'seed coating in the proportion of 1∶75,1∶50,1∶25(seed coating to rice seeds,w/?w)and the average control efficacy was 66.80?%,79.63?%,84.67?%,respectively.It indicated that its control efficacy was significantly higher than that sprayed with 900mL Regent per hectare,600g Imidacloprid per hectare and casting with the mixture of pesticide and soil 1200g per hectare;control efficacy on the rice stem maggot for rice seeds treated with seed coating in the proportion of 1∶50 to 1∶25 can match that sprayed with highly toxic pesticide Carbofuran.Demonstration experiment with'Shunong'seed coating to control rice stem maggot showed good results in large areas of Mianzhu,Hongya,Jintang,Pixian,Tianquan,Jiangyou,Anxian counties.
出处
《西南农业学报》
CSCD
2003年第4期73-76,共4页
Southwest China Journal of Agricultural Sciences
基金
九五"国家和四川省科技攻关项目
"水稻重大病虫害监测治理与无公害稻米生产"项目内容之一
