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Chemical Control of Wild Allium Species 1
Author(s) -
Hardcastle W. S.
Publication year - 1976
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1976.00021962006800010041x
Subject(s) - allium , glyphosate , lawn , weed control , biology , agronomy , horticulture , chemical control , botany , toxicology
Wild Allium sp. often occur in pastures, lawns, and small grain fields in the Southeastern U.S. They are on the noxious weeds lists of several states in this area. Commonly two or more applications of 2,4‐D [(2,4‐dichlorophenoxy) acetic acid] per year for up to 3 years are the current recommended practice for their control. Single applications of glyphosate [N‐(phosphonomethyl) glycine] and 2,4‐D were made in February or April on wild garlic ( Allium vineale L.) and wild onion ( Allium canadense L.) growing in fields in the Piedmont and Limestone Valley regions of Georgia. Scape counts, 6 and 14 weeks after treatment, indicated that excellent control was obtained from treatments of 4.48 and 6.72 kg/ha glyphosate especially when a surfactant was used. The 2.24 kg/ha treatment rate usually equalled or surpassed the 2,4‐D treatments in control.