摘要
黄顶菊[Flaveriabidentis(L.)Kuntze]是一种外来入侵杂草,具有很强的生存竞争能力,严重的危害了生态环境的多样性,对经济、社会和环境造成了巨大的影响。为了有效的控制黄顶菊的发生,本论文对防治黄顶菊高效、低毒、环境友好的除草剂进行了筛选;在保证防效的同时,为了尽可能减少向环境中投放农药而保护生态环境,考察了4种桶混助剂(机油乳油、甲酯化大豆油、有机硅表面活性剂、Quad7)对所筛选除草剂的增效作用。对供试的11种除草剂的田间药效试验结果表明:毒莠定、三氯吡氧乙酸、2甲4氯钠盐对防治黄顶菊有特效,对非靶标植物影响小。4种桶混助剂分别与毒莠定混用,机油乳油、甲酯化大豆油、有机硅表面活性剂分别与三氯吡氧乙酸混用,甲酯化大豆油、Quad7分别与2甲4氯钠盐混用,均可提高防效而降低除草剂正常用量的50%,所以推荐所筛选除草剂与桶混助剂混用防治黄顶菊。
Flaveria bidentis （L.） Kuntze is an alien invasive, fast-growing annual weed. The weed would seriously affect Chinese economy and environment, as well as human health and amenity if it spreads and establishes in some new areas successfully. In this study, the control efficacy of several herbicides to Flaveria bidentis （L.） Kuntze has been studied in order to supply emergency pesticides when it spreads. Aim to reduce the quantities of herbicides that will be put in environment, effects of several adjuvants to the herbicides have been investigated. The results showed that picloram, triclopyr and MCPA-sodium have good efficacy to control Flaveria bidentis （L.） Kuntze. The usage of some herbicides can been reduced 50% by adding adjuvant to spray solution.
出处
《生态环境》
CSCD
北大核心
2008年第3期1184-1189,共6页
Ecology and Environmnet
基金
农业部财政专项资助(2006-2007)
公益性行业科研专项经费资助(200803022)
关键词
黄顶菊
除草剂
助剂
Flaveria bidentis （L.） Kuntze
herbicide
adjuvant
