Studies on the Use of Herbicides for Control of Wild Garlic (Allium Vineale L.) in a Winter Wheat-Soybean Double Crop Rotation (Chlorsulfuron, Dpx T6376)

The response of wild garlic (Allium vineale L.) to two sulfonylurea herbicides, chlorsulfuron (2-chloro-N-(((4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino)carbonyl)benzenesulfonamide), and DPX T6376 (methyl-2-((((4-methoxy-6-methyl-1,3,5-triazin-(2-yl)amino)carbonyl)amino)sulfonyl)benzoate), was investigated. In field studies, although DPX T6376 was approximately three times more active than chlorsulfuron, extremely low rates of either herbicide controlled wild garlic. DPX T6376 and chlorsulfuron applied in April at 5 and 15 g ai/ha, respectively, reduced aerial and underground bulb production by 95%. In time of application experiments, chlorsulfuron was applied preemergence, and postemergence, in early fall, late fall, early spring and late spring. All treatments reduced aerial and underground bulb production, but spring applications were much more effective than preemergence, or postemergence, fall applications. Application of chlorsulfuron in mid to late April, when the old bulb reserves were exhausted, and the scape and new bulbs were rapidly developing, gave the best control of wild garlic.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Leys, Andrew Ross

• Agriculture, Agronomy

Identifier

(UMI)AAI8502219

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71603