水稻重大病虫害可持续控制技术的优化集成及应用

Best combination and implementation of sustainable management for rice major pest in Guangdong

报道了国家“十五”科技攻关计划专题“华南稻区水稻重大病虫害可持续控制技术研究”取得的有关田间试验和示范的部分进展。通过田间抗性品种评价试验,评价出可供可持续控制技术组装应用的新品种,如齐粒丝苗、丰丝占、粤秀占等;开展高效低毒药剂筛选和防治技术研究,研制的58%稻虫杀净列入台山珍香绿色稻米(农业部认证)专用杀虫剂,可替代高毒药剂甲胺磷;开展了褐稻虱对吡虫啉和扑虱灵抗药性的初步检测;研究了不同抛秧栽培密度和不同施肥模式与病虫害发生的关系,以形成适应当前优质+低氮肥+湿润灌溉+放宽防治指标生产性配套技术措施控制病虫害的相关技术,为华南水稻重大病虫害可持续控制技术研究提供依据;在水稻重大病虫害可持续控制关键技术研究的基础上,提出以抗病虫优质丰产品种、控害丰产栽培和合理用药为关键措施的可持续控制技术。

The progresses of the field＇s experiments and Implementation for the national key project titled sustainable management for rice major pest in South China were reported in the present paper. Some of the resistant varieties were evaluated for the technique. The new pesticide named Daochongshajing was selected as a high effective to planthopper and leaf folder and low toxic to the spiders. The resistance of BPH to pesticides admire and buprofezin were checked primarily. The relation ship between population dens ice and amount of nitrogen fertilizer were studied. The Best Combination and Implementation of Sustainable Management for Rice Major Pest in Guangdong province were successful in Guangdong province of South China.