Weeds

Weed Identification
UC Pest Management Guidelines

Weed Science Society of America

Weed Images and Descriptions -by Rutgers Cooperative Extension

Weed Identification -by the University of Illinois

Poisonous Plants Database -by Cornell University

Herbicides
Herbicide Symptom Key -by Pat Clay and Bill McCloskey

Herbicide Symptoms -by Pat Clay, Kai Umeda and Bill McCloskey (PDF, 4.2MB) An overview of herbicides, their classification, mode of action, and target weeds are provided along with photos of symptoms.

Hazard From Herbicide Used in Previous Crop -by Barry Tickes (PDF, 26KB)

Herbicide Resistance -by Ron Vargas

International Survey of Herbicide Resistant Weeds

For more information about pesticides, click Here

Cotton Report Articles
Effect of Buctril Rate on Weed Control in BXN Cotton -by William B. McCloskey (PDF, 142KB)

Effect of Halosulfuron (Permit), CGA362622, Glyphosate (Roundup Ultra) and Pyrithiobac (Staple) on Purple Nutsedge Growing in a Fallow Field -Maren E. Veatch and William B. McCloskey (PDF, 49KB)

Effects of Reduced Tillage and Crop Residues on Cotton Weed Control, Growth and Yield -by K.O. Adu-Tutu, W.B. McCloskey, S.H. Husman, P. Clay, M. Ottman, and E.C. Martin (PDF, 56KB)

Integrated Morningglory Control Strategies Transgenic Cotton and Precision Cultivation -by Tim C. Knowles, Bill McCloskey, and Vic Wakimoto (PDF, 20KB)

Johnsongrass Control in Cotton with BAS 620 -by P. A. Clay and L. D. Isom (PDF, 13KB)

Weed Control in Arizona Ultra Narrow Row Cotton 1999 Preliminary Results -William B. McCloskey, Patrick A. Clay, and Stephen H. Husman (PDF, 40KB)

IPM/BMP Practices in Arizona Cotton -by Paul B. Baker, William B. McCloskey, Will Sherman and Timothy D. Dennehy

Interactions Between Herbicides and Cotton Seedling Damping-off in the Field -by A. Heydari and I. J. Misaghi

Layby Mexican Sprangletop Control with Select (Clethodim) and Antagonism Resulting From Staple (Pyrithiobac Sodium) and Select Tank Mixed -by Tim C. Knowles, Bill McCloskey and Mike Keavy

Preliminary Study of Cotton Weed Control Strategies Using Over-The-Top Herbicides -by William B. McCloskey

Survey of Cotton Weeds and Weed Control Practices in Arizona Upland Cotton Fields -by William B. McCloskey, Paul B. Baker and Will Sherman

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