Title: Response of Yankeeweed (<i>Eupatorium compositifolium</i>) and Associated Pasture Plants to Herbicides
Abstract: Eleven herbicides applied in May, were evaluated for yankeeweed control in East-Central Texas. Yankeeweed cover 1 yr later was reduced to 5% or less by 0.28 kg ha -1 of picloram; 0.56 kg ha -1 of clopyralid, glyphosate, or dicamba; 0.28 + 0.84 kg ha -1 of dicamba + 2,4-D, and 1.1 kg ha -1 triclopyr compared with 30% cover in the untreated area. Chlorsulfuron and metsulfuron at 0.07 kg ha -1 reduced yankeeweed cover to 12 and 7%, respectively. Dalapon, 2,4-D, and tebuthiuron were relatively ineffective. Most herbicides, reduced woolly croton cover within 1 mo after treatment compared to the untreated areas, but 2,4-D at 0.28 kg ha -1 and chlorsulfuron at 0.02 kg ha -1 and 0.07 kg ha -1 were most effective after 4 mo. All herbicides, except dalapon at 1.1 kg ha -1 or less and most rates of 2,4-D and tebuthiuron, reduced partridgepea cover during the year of application. Total grass cover was increased 4 and 12 mo following treatment with clopyralid, picloram, dicamba, and triclopyr. On separate sites, bahiagrass and coastal bermudagrass accounted for most of the increased grass cover.
Publication Year: 1991
Publication Date: 1991-03-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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