SAN 582 efficacy and tolerance in potato (Solanum tuberosum)

• Published in: Weed technology Vol. 13; no. 1; pp. 71 - 76
• Main Authors: Tonks, D.J, Eberlein, C.V, Guttieri, M.J, Brinkman, B.A
• Format: Journal Article
• Language: English
• Published: Lawrence, KS Weed Science Society of America 01-01-1999
• Subjects: Amaranthus retroflexus; amide herbicides; application rate; application timing; Biological and medical sciences; Broadleaf weeds; Chemical control; Chenopodium album; crop yield; Dried beans; efficacy; evaluation; field experimentation; Fundamental and applied biological sciences. Psychology; herbicide mixtures; Herbicide resistance; Herbicides; metribuzin; Organic soils; Parasitic plants. Weeds; Phytopathology. Animal pests. Plant and forest protection; phytotoxicity; rimsulfuron; Setaria viridis; Silt loam soils; Soil organic matter; Soil water; Solanum sarrachoides; Solanum tuberosum; sulfonylurea herbicides; tolerance; Tubers; Weed control; Weeds; Idaho; United States; North America; America; Amaranthus retroflexus; Monocotyledones; Amaranthaceae; Gramineae; Dicotyledones; Angiospermae; Chemical control; Solanaceae; Pesticide resistance; Acetamide(chloro); Weed; Solanum tuberosum; Pesticides; Herbicide; Setaria viridis; Chenopodiaceae; Chenopodium album; Sensitivity resistance; Sulfonylureas; Triazine derivatives; Metribuzin; Organic amide; Spermatophyta; Application method; Tuber plant
• ISSN: 0890-037X; 1550-2740
• DOI: 10.1017/S0890037X00044936

Field studies were conducted to examine weed control efficacy and crop injury with SAN 582 (proposed name, dimethenamid) in irrigated 'Russet Burbank' potato. SAN 582 applied preemergence (PRE) at 1.1 to 1.7 kg ai/ha controlled light to moderate infestations of redroot pigweed, common lambsquarters, and hairy nightshade > 90%. Season-long control of these species with mixtures of SAN 582 plus metribuzin or rimsulfuron was > 98% and was similar to or better than registered mixtures. Green foxtail control with SAN 582 alone ranged from 83 to 100%, depending on rate and year. SAN 582 mixtures with metribuzin or rimsulfuron usually controlled green foxtail > 90%. In weed-free plots, SAN 582 was applied alone PRE or early postemergence (EPOST) at rates up to 3.4 kg/ha. SAN 582 applied EPOST usually cuased 10 to 30% more potato injury than when applied PRE, but U.S. No. 1 yield was not reduced by SAN 582 applied either PRE or EPOST. SAN 582 shows good potential for PRE use in irrigated potato.