Reference

Red rice (Oryza rufipogon) control with herbicide treatments in soybeans (Glycine max)

Red rice (Oryza rufipogon) control with herbicide treatments in soybeans (Glycine max). Khodayari, Khosro; Smith, Roy J., Jr.; Black, Howard L. (Rice Res. Ext. Ctr., Univ. Arkansas, Stuttgart, AR 72160, USA). Weed Sci., 35(1), 127-9 (English) 1987. CODEN: WEESA6. ISSN: 0043-1745. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) Preplant incorporation of alachlor [15972-60-8] at 3.6 kg ai/ha, metolachlor [51218-45-2] at 2.2 kg ai/ha, and tank mixts. of Imazaquin [81335-37-7] with either alachlor at 0.14 + 2.2 kg ai/ha or metolachlor at 0.14 + 1.1 kg ai/ha controlled >90% red rice (Oryza sativa) in soybeans (G. max). Also, preplant incorporated FMC-57020 [81777-89-1] at 1.7 kg ai/ha controlled the red rice >80%. DPX-Y6202 [76578-14-8] was the best and most consistent postemergence herbicide treatment for red rice control when applied once at 0.28 kg ai/ha or sequentially at 0.14 kg ai/ha each time. Haloxyfop [69806-34-4] applied at 0.16 kg ai/ha followed by another application at 0.14 kg ai/ha gave excellent red rice control in 2 of 3 yr. Soybeans were uninjured by the herbicide treatments and yield was higher from treated than untreated soybeans.

New bleaching herbicides for weed control in white potatoes

New bleaching herbicides for weed control in white potatoes. Kupatt, C. C.; Ilnicki, R. D.; Vitolo, D. B. (Cook Coll., Rutgers Univ., New Brunswick, NJ 08903, USA). Proc. Annu. Meet. Northeast. Weed Sci. Soc., 39, 166-9 (English) 1985. CODEN: PNWSBF. ISSN: 0078-1703. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) The 2 bleaching herbicides dimethazone [81777-89-1] and fluorochloridone [89286-81-7] were investigated for suitability for weed control in white potatoes. Dimethazone at >0.56 kg/ha and fluorochloridone at 0.56 and 0.84 kg/ha provided good residual weed control of Echinochloa crus-galli, Chenopodium album, and Ambrosia artemisiifolia. When compared to alachlor, linuron, and metribuzin, the 2 bleaching herbicides at the above rates provided better residual broad-spectrum weed control than these herbicides applied alone, and performed as well as some combinations of these compds., such as alachlor + linuron or alachlor + metribuzin. Both dimethazone and fluorochloridone produced yields as high as or higher than the std. herbicide check of alachlor + linuron, and dimethazone at 0.84 and 1.12 kg/ha produced significantly higher yields than the herbicide check. Dimethazone-linuron mixt. [95628-17-4] and dimethazone-metribuzin mixt. [95628-18-5] also provided yield values significantly higher than the herbicide check. Bleaching of a rye cover crop planted after potato harvest occurred in some dimethazone-treated plots but after 8 wk this effect was no longer obsd.