A website from UGA Cooperative Extension

Weed Science

  • Weed Control Update

    Field corn harvest is just about to start or will start soon depending upon the county. Growers who have annual morningglory problems might want to consider a harvest-aid application of Roundup + Aim to help dessicate the MG vines and facilitate harvesting. It is the best option we have, but not perfect. Growers should be…

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  • We are in the 30-45 days after planting range for a lot of peanuts in the county. A lot of people are going to use Cadre + 2,4-DB based off the phone calls. If grass is an issue in your peanut field, it is important to remember to go ahead and do your Cadre+2,4-DB and…

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  • A state Section 24(c) Special Local Need Label has been approved by the U.S. EPA and Georgia Department of Agriculture (GDA) allowing directed and hooded applications for Engenia, FeXapan, and XtendiMax. Label Information: 1. Applicators must have attended (and registered) a 2019 Using Pesticide Wisely training and must be a certified applicator. 2. Each applicator…

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  • Peanut planting time is here.  Here are some important things to consider from Dr. Eric Prostko, UGA Extension Weed Specialist: • Start clean using a combination of tillage, cover crops, and/or herbicides • Use 2 to 4 residual herbicides in the system, depending upon the need and/or weed • Cracking or early-postemergence applications of paraquat…

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  • Attached below is some information about volunteer peanut control in field corn from Dr. Prostko for those that are dealing with this issue and looking for solutions. Volunteer peanuts that made it through the winter and rains are tough plants. Roundup Ready Corn:  Split applications of glyphosate at least 10 days apart.  Glyphosate can be…

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  • As we move into cotton and peanut planting, here is some information to take a look at and to consider.  Palmer Amaranth Control in Georgia Cotton During 2019 is a great resource to use in planning a weed management system for cotton fields this season.  Another resource for peanut growers is the UGA Peanut Production…

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  • Attached is from Dr. Lenny Wells on herbicide program for 1-2 year old trees. Herbicide Program for Young Trees Trees 1‐2 Yrs: At budbreak: Glufosinate + Prowl H20 May/June: Glufosinate or Glyphosate or Paraquat + Flumioxazen (Tuscany, Chateau) August/September: Glufosinate or Glyphosate or Paraquat + Flumioxazen (Tuscany, Chateau)   Also attached is the 2019 Pecan…

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  • It is the time of the year where growers are getting ready to prepare cotton and peanut land by burning down winter weeds in wheat/rye/oats cover crop. Cover cropping is widely used to help reduce weed emergence, preserve soil moisture, help with thrips, etc. Two of the most common winter weeds I see are wild…

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  • I received a call about smutgrass in bermuda/bahia pasture. Smutgrass is a perennial, warm-season species with no auricle present. The seedhead is a spike-like panicle with a black fungus on seeds. This weed is often tough to control in pastures and a combination of cultural and chemical control is best. Listed below are some pictures…

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  • There has been questions on Harmony Extra/FirstShot w/glyphosate or paraquat in pre-plant burndown application to improve wild radish control and other broadleaves. Notice the peanut rotation restriction difference. Below is a table by Dr. Prostko on the rotation differences.  Herbicide Use Rate (oz/A) Active Ingredients Crop Rotation Restrictions (Days)a Thifensulfuron (%) Tribenuron (%) Peanut Cotton…

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