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 Palmer Amaranth in 2012 Cotton
Liberty herbicide, whether you use it today or not, is arguably one of the most important herbicides for the sustainability of
our cotton farms. Although cotton resistant to 2,4-D, dicamba, or HPPD herbicides is being developed, the value of these
technologies will be greatly reduced if we lose the effectiveness of Liberty to the development of resistance.
It is absolutely critical that EVERY SINGLE GROWER protect Liberty by using sound management programs.
Read about the available herbicide management programs...

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.
Read more about the biology of Palmer amaranth...
University of Georgia Herbicide Programs for Tropical Spiderwort Control in 2012 Cotton
Tropical spiderwort is a noxious, exotic, invasive weed that has spread quickly and has become a serious pest in many Georgia agricultural production areas.
The increase in prevalence of tropical spiderwort in Georgia may be attributed in part to
1) adoption of weed management programs that lack residual
herbicides and
2) adoption of reduced-tillage production systems.
Read more about management of tropical spiderwort in Georgia cotton...

SWSS Weed Contest
The SWSS Weed Contest was hosted by the University of Georgia,
August 4-5, 2009 at the UGA Tifton Campus Conference Center.
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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).