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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.


Methyl Bromide Alternatives 2015

Effective alternatives to methyl bromide exist but selecting the ideal fumigant, mulch, and herbicide program is challenging. Growers must better 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 fumigant system for their farm

Read about methyl bromide alternatives . . .


UGA Weed Control Programs for Wheat in 2015

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 . . .


UGA Weed Control Programs for Watermelon in 2015

New herbicidal tools are being developed to assist growers in the battle against weeds in watermelon. These tools are a result of cooperative efforts involving The University of Georgia, IR-4, The Georgia Department of Agriculture, The Georgia Agricultural Commission for Vegetables, and Industry. This circular is an effort to provide effective weed management programs for seeded and transplant watermelon.

Read about watermelon weed control programs . . .


UGA Programs for Controlling Palmer Amaranth in 2015 Cotton

It is imperative that growers continue to use sound herbicide programs but also integrate these programs with other control measures, such as hand-weeding, to remove escapes before seed are produced, deep turning to reduce the number of plants emerging (ideally wait 3.5 to 4 years before repeating), and/or using a heavy mulch cover crop to suppress emergence in conservation tillage systems.

These integrated programs proved to be very successful during 2012. Continued efforts are underway to further improve management programs while becoming more economical.








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).