Colquitt County Ag Report

News, events, and happenings in agriculture.

Colquitt County Extension Ag Update 8-25-17  

Colquitt County Extension Ag Update 8-25-17    

In this issue

Peanut Maturity Clinics!!                                                                                                                                             Colquitt County Cotton Defoliation and Peanut Harvest Update                                                                       Water Use for Peanut                                                                                                                                        Areolate Mildew in Cotton                                                                                                                                     Winter Annual Seed Costs: What’s the Best Deal?                                                                                       Variety Recommendations: Winter Grazing 2017-18                                                                                     White things on my soybeans?                                                                                                                             Black aphids and Upcoming Pecan Field Days

Peanut Maturity Clinics!!
The Colquitt County Extension will be offering peanut maturity clinics beginning this Friday, August 25, 2017 until the end of September. The clinics will be offered Tuesday, Wednesday and Friday from 8:30 AM to 10:30 AM and will be held at the Colquitt County Extension office.  Peanuts that range from 120 to 130 days in maturity seem to be running about 2 weeks off depending on if they are irrigated or dryland.  If you have any questions about peanut maturity clinics please call or email.

Colquitt County Cotton Defoliation and Peanut Harvest Update!!

The Colquitt County Cooperative Extension will be hosting a cotton defoliation and peanut harvest update for area growers on Thursday, August 31, 2017 at noon.  This update will be held at the Colquitt County Extension office and will be sponsored by Adama.  Drs. Jared Whitaker, UGA Cotton Agronomist,  and Scott Monfort, UGA Peanut Agronomist, will be the keynote speakers.  If you are interesting in attending please contact the Colquitt County Extension office (229-616-7455).

Water Use for Peanut

It does not take long to get dry and the weather forecast seems to predict more of the same.  The peanut crop does not need to stress this point of development.     Below is a chart of weakly peanut water use in inches per week.

  23 Inches of water needed

 

Areolate Mildew in Cotton

I have received a call or two about Areolate mildew in cotton.  Areolate mildew looks like powdery mildew but we rarely treat for it, though it can cause significant premature defoliation.  Fungicides appropriate for target spot will also manage Areolate mildew.  No other cotton disease commonly observed will have the white, powdery growth on the underside of the leaf.   Areolate mildew is observed in most countries where cotton is produced, but not commonly observed in the U.S. In Georgia, the disease is typically restricted to the extreme southeastern counties. This disease normally appears late in the season and usually causes little yield loss. Below is a picture of Areolate mildew in cotton.

Source: Diagnosis and Management of Foliar Diseases of Cotton in the United States Winter Annual Seed Costs: What’s the Best Deal?

If you haven’t priced annual ryegrass yet, I’d suggest having some heart medicine at the ready or a defibrillator handy. Ryegrass seed is significantly higher than it has been the last few years. Is it still the best deal? more

Variety Recommendations: Winter Grazing 2017-18

The list of recommended varieties for each of the major winter annual grass species has been posted to www.georgiaforages.com. Here are quick links to the annual ryegrassoats, ryetriticale, and wheat pages.
White things on my soybeans?

A couple soybean growers have sent me a picture or two about white objects on soybeans similar to the one below.  The white growth is a fungus called Beauveria bassiana (white muscadine disease), which infects kudzu bugs.   This fungus seems to be keeping kudzu bugs below thresholds in area soybeans. 

Soybean looper threshold in soybeans. 

Soybean looper has reached threshold in a few Colquitt County soybean fields.  The threshold for soybean looper is 19 per 25 sweeps if you utilize a sweep net.  If you are using a drop cloth then the threshold is 8 per 1 foot of row.  Treatment should also be initiated when 30 % foliage loss has occurred and larvae are ½” or longer prior to bloom or when 15% foliage loss has occurred and larvae are ½” or longer after bloom.  Control options include Prevathon, Steward, Intrepid, Radiant or Blackhawk according to the 2017 Soybean Production Guide.

Black Aphids and Upcoming Pecan Field Days

http://blog.extension.uga.edu/pecan/2017/08/black-aphids-and-field-days/ 

Thanks for your time,

 

Jeremy M. Kichler

UGA Cooperative Extension                                                                                                                               County Extension Coordinator                                                                                                                         Colquitt County                                                                                                                                                            Cell 229-921-1977                                                                                                                                                   Office 229-616-7455

The Colquitt County Extension does not endorse any of the products mentioned in this newsletter.

 

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