A website from UGA Cooperative Extension

News, events, and happenings in Colquitt County agriculture.

Do I need to spray fungicides on my peanuts again? According to Dr. Bob, there are three different scenarios for peanut fungicide applications at the end of the fourth quarter.

3 weeks until harvest and “clean”? I wouldn’t spray.

 3 weeks until harvest and spots from top to bottom and leaves dropping? I wouldn’t spray.

3 weeks until harvest and some spots low in the canopy, I probably would spray. 

I would like to use Ginstar on the cotton this year. What is the rate? The early, mid and late-season rates of Prep and Ginstar are shown in the slide below.

I see a lot of peanuts on the ground after I dig. How much yield am I losing?  According to the Texas A and M Extension publication Field Estimate Technique for Peanut Yield, peanut yield can be estimated by counting XYZ pods per 1 foot of row length on 36” rows. For example, at 90 pods per foot for runner peanuts: (Pods per 1 foot of row) X CF = 90 pods/foot X 53.8 = 4842 lbs/A.

Another reference is the Clemson Extension publication Guide for Peanut Digger Setup and Operation. If you would like to have a quick way to estimate losses then assume that each pod lost per row foot is equivalent to 40 lb/ac in runner type peanuts and 60 lb/ac in Virginia type peanuts.

If you like more details about this subject please go the publications mentioned above.

Mr. Kichler, have the UGA Small Grain OVTs been released yet? Yes, the UGA Small Grain OVT’s are available here.

When can I apply harvest aids to my soybeans? I have received this question a couple of times this week. According to the soybean weed control section of the 2021 UGA Pest Management Handbook, paraquat can be applied to soybeans based on the following instructions.

Indeterminate Varieties: Apply when at least 65% of the seed pods have reached a mature brown color or when seed moisture is 30% or less.


Determinant Varieties: Apply when soybeans are fully mature (full pod development, 50% leaf drop, and the remaining leaves are yellow).


Mature cocklebur and drought stressed weeds are not adequately controlled by this treatment. Do not apply to immature soybeans. Add a nonionic surfactant at 0.25% v/v. May be ground or aerially applied.
Tank-mix with Aim if annual morningglories are also a problem (except smallflower).
Users of paraquat must be certified applicators and successfully complete an EPA approved paraquat training (https://www.epa.gov/pesticide-worker-safety/paraquat-dichloride-training-certified-applicators).

Other references are avaliable on the is subject

Critical timing for soybean desiccation by Dr. Reagan Nolan.

Avoid Early-Harvest-Aid Applications in Soybeans

Avoid Early-Harvest Aid Applications in Soybeans by Dr. Eric Prostko

If you are not familiar with soybean growth stages..

If you have questions or concerns please contact your local county Extension agent.

Have a great day,

Jeremy M. Kichler

County Extension Coordinator

Colquitt County