Seminole Crop E News

Agricultural News for Farmers and Agribusiness in SW Georgia

Archive for the ‘Wheat’ Category

Wheat – Powdery Mildew

Posted by romeethredge on February 26, 2016

Brock Ward, Miller county agent, recently posted info about what he’s seeing in the wheat fields.

He said, “Today while checking some wheat fields, I noticed some powdery mildew in the lower canopy.  This disease isn’t particularly a problem for us but under the right conditions, can warrant treatment.”

To go to his blog post with photos click on the following, Spring Creek Extension News.

 

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Wheat Weed Control UGA 2015

Posted by romeethredge on December 11, 2015

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Some Small Grains Look Bad

Posted by romeethredge on December 1, 2015

Small grains don’t look so good now, although we’ve had warm temperatures for growth, other things have gone wrong.

The rainy, cloudy weather of the first 2 weeks of November hurt us. Fertilizer was leached  deep and the saturated conditions caused low soil oxygen and likely some root loss with small grains.  Also, the cold snap last week kind of shocked fields, especially oats. We are seeing a lot of tip burn due to the cold and drying winds perhaps in many fields.The warmer weather is allowing aphids to be more of a problem in grazing fields, so there are more aphids which leads to more Barley Yellow Dwarf disease (BYD) as they transmit it. I am also seeing some crown rust in oats.

Problems like compaction become apparent when we have the other plant stresses.

Some fields need a little additional nitrogen and sulfur to get them going and some need treating for aphids.

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Here’s some oats with rust developing.

 

Posted in Agriculture, Wheat | Tagged: | 2 Comments »

Wheat Meeting in Donalsonville

Posted by romeethredge on October 9, 2015

We are having a wheat breakfast this week in Donalsonville. Come out to hear about wheat production for 2015/2016. We’ll meet at the Extension Building on Friendship Ave at 8 am on  Wed. Oct 14, 2015.

Dr. Dewey Lee, UGA Extension Grains agronomist, will be here to update us and hopefully tell us how to make money with wheat this year. Here’s a link to our Wheat UGA Page with the production guide and other info.

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Wheat Harvest 2015

Posted by romeethredge on May 13, 2015

We have begun wheat harvest in deep south Georgia. Moisture is running about 10% in some fields, depending on the variety as well.  I’ve heard some 60 to 70 bushel estimated yields. Some test weights are low, but some at 60 or so reported. We are seeing shriveled kernels from disease problems, mainly Fusarium head blight.  Look for the pink on them and it’s likely fusarium. This can cause deductions so if you are seeing pink on shriveled kernels then make sure to turn up the fans to blow most of that out.  I have photos of some below.

UGA Grains Scientist, Dewey Lee, has more observations at his Georgia Grain Crops.

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Fusarium Head blighted kernels on right side, notice pinkish appearance.

 

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Posted in Plant Pathology, Wheat | Tagged: , | 1 Comment »

Fusarium Head Scab….again

Posted by romeethredge on April 22, 2015

I didn’t think we’d see it 2 years in a row like this. But I’m seeing some wheat Fusarium head scab today here in Seminole county and it concerns me.  I don’t think at this point that we are seeing this disease at the level we saw last year and it will differ field by field. We just released a new publication concerning this disease at this post Fusarium Head Blight (Scab) of Wheat in Georgia.

It was bad last year and not at all bad before that. I would see it in low levels if at all. I started worrying about it when we started getting so much rain. Not much we can do about it. We may need to look at variety selection next year, and a few other things you can read about in the publication.

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Fusarium Head Blight (Scab) of Wheat in Georgia

Posted by romeethredge on April 22, 2015

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Posted in Plant Pathology, Wheat | Tagged: , | 3 Comments »

Wheat Fusarium Head Blight or Scab

Posted by romeethredge on April 17, 2015

Last year,2014, was the worst Fusarium Scab we have ever seen here on wheat.  We had rainy warm conditions during flowering (just as heads emerged) and everything hit just wrong.  This time we were dry when most of the wheat here was heading, so we are hoping not to see much this year. But now that conditions have worsened in terms of being favorable for the disease, we need to be thinking about it. Some growers may decide to apply fungicides but they must be applied at the right time, preemptively, and may just give us some suppression.

There is a Fusarium Head Blight Prediction Center that is showing as you see below a high risk now for our area. Go to the site and click on Georgia to get more info.  Fullscreen capture 4152015 112901 AMHere is a list of some of our wheat varieties and their resistance to this problem.

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Dr. Alfredo Martinez, UGA Plant Pathologist, gives these wise words concerning the use of chemical control. “Control using fungicides can be difficult due to the specific time the fungicides need to be deployed and because selection of fungicides labeled for FHB is limited. Timing of fungicide applications is crucial for the control of FHB. Foliar sprays must be applied at the first sign of anthers extruding from the wheat (anthesis). Triazoles work best when applied right before or at early flowering on the main stem heads. The use of nozzles that provide good coverage of the spike is essential for proper disease management. The fungicides labeled for FHB disease-suppression only are listed in Table 3”

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Here is what the heads look like if affected. This is from last year.

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Question of the Week – Loose Smut

Posted by romeethredge on April 17, 2015

Last week I had a photo of some oats with a black powdery look where the grain should be. This is a disease called loose smut. You’ll often see this disease in very very low levels. I’ve seen it at higher levels where someone saved their own seed for several years and didn’t use a systemic seed treatment.

It also occurs in wheat and here’s an excerpt from the UGA Wheat production guide about it.

“Loose smut causes the tissues in the head to be replaced by masses of powdery spores. The fungus spores invade the embryo of the developing seed and the fungus survives there until the seed germinates.  These smut pathogens are only transmitted by seed. Planting certified seed is an effective method to control smut diseases because seed fields are carefully inspected. Seed treatment with systemic fungicides is an inexpensive way to achieve nearly complete control of loose smut.”

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This week someone brought me this monster to identify. What is it?

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Posted in Entomology, Wheat | Tagged: , | Leave a Comment »

Wheat Fungicide

Posted by romeethredge on April 17, 2015

There has been a fair amount of wheat sprayed with fungicide in the last 2 weeks. We are seeing some rust in some fields. Here’s Brad Thompson spraying some that they have that has just completely headed out. That’s the best time to spray for maximum protective effect. Here’s the link to UGA’s Wheat Rust in Georgia publication.

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Posted in Agriculture, Plant Pathology, Wheat | Tagged: , | Leave a Comment »

 
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