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Welcome to the University of Georgia Weed Science Homepage.

The weed science faculty and staff are committed to providing the information and resources you need to answer your weed control questions.


UGA Programs for Controlling Ryegrass and Wild Radish in 2019/2020 Wheat

Ryegrass threatens Georgia wheat production, with numerous populations resistant to Osprey, PowerFlex, Axial and Hoelon. Aggressive resistance management programs must be implemented to ensure long-term sustainability of grain production.

Wild radish is the most problematic broadleaf weed infesting Georgia wheat, but management is not difficult if timely management decisions are implemented.

This circular is an effort to provide effective weed management programs for Ryegrass and Wild Radish in Wheat.

Read about wheat weed control programs . . .


2020 Palmer Amaranth Control in Georgia Cotton – Back to the Basics

Cotton weed control has become dynamic and complex with the greatest challenges being 1) mitigating off-target herbicide movement and 2) minimizing the development of more herbicide resistance. Our circular is designed to assist with improved, economically-sound management programs, minimize cotton injury, and make on-target pesticice applications.

Read about the available herbicide management programs...



2020 Vegetable Fumigant Systems For Plasticulture in Georgia

Effective alternatives to methyl bromide exist but selecting the ideal fumigant, mulch, and herbicide program is challenging. Growers must understand how soil texture, moisture, bed compaction, and their cultural practices influence fumigant activity, planting intervals, and off-gassing concerns. This circular is provided to assist growers with developing the most effective system for their farm.

Read about methyl bromide alternatives . . .


2020 Weed Control Programs for Broccoli, Cabbage, and Cauliflower

Crop rotation, tillage, and a sound herbicide program are all often critical components for long-term success. This circular focuses on developing sound herbicide programs while minimizing crop injury for the following production systems: 1) transplanting into bareground, 2) seeding into bareground, and 3) transplanting into mulch.

Read about broccoli, cabbage, and cauliflower weed control programs . . .


UGA Weed Control Programs for Watermelon in 2020

Crop rotation, tillage, and a sound herbicide program all influence success. This circular focuses on developing sound herbicide programs while minimizing crop injury when 1) transplanting into small-bed flat mulch, 2) transplanting into bareground, and 3) seeding into bareground.

Read about watermelon weed control programs . . .


2020 Peanut/Field Corn/Soybean Weed Control Recommendations


Read about 2020 weed control recommendations . . .


UGA Weed Control Programs for Sweet Potato in 2019

Crop rotation, tillage, and a sound herbicide program are all critical components for long-term success. This circular focuses on developing sound herbicide programs while minimizing crop injury for transplant sweet potato production systems.

Read about methyl bromide alternatives . . .


Specialty Crop Visual Sensitivity Scale for 2,4-D and Dicamba for 2018

Download specialty crop visual sensitivity scale for 2,4-D and Dicamba . . .


UGA Weed Control Programs for Yellow and Zucchini Squash in 2019

Crop rotation, tillage, and a sound herbicide program are all critical components for long-term success. This ciruclar focuses on developing sound herbicide programs while minimizing crop injury for production systems including: 1) seeding into bareground, 2) transplanting into bareground, and 3) transplanting into mulch.

Read about yellow and zucchini squash weed control programs . . .


Rolling Rye For Conservation Tillage Cotton Success

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The Biology and Ecology of Palmer Amaranth: Implications for Control

Palmer amaranth is a highly competitive weed of field corn, cotton, peanut, and soybean and has been confirmed to be resistant to glyphosate in nearly every agronomic county in GA. Glyphosate-resistant (GR) Palmer amaranth’s establishment and spread has been assisted by its rapid growth rate, extensive rooting structure, high seed production, physical seed movement (man, animal, water), and most importantly by pollen (wind) dispersal.

Growers must understand the biology and ecology of GR Palmer amaranth if effective control is to be achieved.






University of Georgia Herbicide Programs for Tropical Spiderwort Control in 2013 Cotton

Tropical spiderwort is a noxious, exotic, invasive weed that can spread quickly. Upon initial observation, tropical spiderwort appears to be a grass. While not a grass, it is a monocot (in contrast to broadleaf weeds, which are dicots) with leaves and stems usually fleshy and succulent. The stems will creep along the ground and root at the nodes. Vegetative cuttings from stems are capable of rooting and reestablishing following cultivation. Tropical spiderwort will produce seed above and below ground.








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Disclaimer

This website may contain research results of use patterns of herbicides, some of which may not be currently registered for the particular use. Such results are included for informational purposes only and should not be taken as recommendations for use. Additionally, the University of Georgia does not guarantee nor warrant the standards of the products, nor do they imply approval of the products to the exclusion of others which may be similarly effective. Official University of Georgia weed control recommendations can be found in the latest edition of the Georgia Pest Control Handbook (Special Bulletin #28).