Seminole Crop E News

Agricultural News for Farmers and Agribusiness in SW Georgia

Archive for June, 2013

Summer Camp

Posted by romeethredge on June 27, 2013

W e are at summer 4-H camp this week at Rock Eagle. We had some good hard Rock Eagle toast this morning in the nice fairly new dining hall. Other changes are that there are some new cabins being built and we are thankful to lots of supporters including the Ga General Assembly for that.

Kids are learning lots this week including a great class on entomology where they had beetle races and went on a bug hunt. The canoeing has been fun and many children have never done it. I asked one girl if it was her first time canoeing and she said “Oh no, I’ve done it on computer games sitting in my house. ”  I’m glad for Ga 4-H where she can experience it for real.

The high ropes were a challenge and many kids were up to it although it’s a little scary. There are over 700 4-H’ers here this week from all over Georgia, making friends and experiencing new things.

I stayed in a cabin just like number 5 we are in this week 39 years ago and had a lot of the same experiences except we didn’t sleep under air conditioning then. I’m glad Georgia 4-H is still alive and well.

I better get back to the kids now and check on the boy who asked me if he could pee in the lake, to make sure he found the bathroom, and try to find someone to give advice to the boy who asked how to flirt with a girl. I told him I’d been married too long,I don’t really remember.

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Seminole County Group

Seminole County Group

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Posted in 4H, Entomology | 4 Comments »

Greenbrier aka Smilax, Control

Posted by romeethredge on June 27, 2013

Controlling Greenbrier AKA Smilax Vine

I get asked often about how to get rid of these slick waxy tough vines growing up trees on my land. They are smilax vines and they are tough to control. They have a big root that keeps them going and makes them very tough to kill. One of our UGA Scientists has some good tips below.

Mark Czarnota, Ph.D., Ornamental Weed Control Specialist Department of Horticulture,UGA

Greenbrier (Smilax spp.) is a difficult vine to control in the landscape. There are many common names for Greenbrier, including Catbrier, Cat Sawbrier and Sarsaparillavine. Greenbrier is native to North America. It is in the genus Smilax, which includes about 12 to 15 species. It is in the Liliaceae family, closely related to Daylilies, Lilies, and Yucca. With the exception of Smilax pumila (Sarsaparillavine), all species of Smilax are climbing vines (Figure 1).

Figure 1. smilaxWith the exception of Smilax pumila (Sarsaparillavine), all species of Smilax are climbing vines.

 smilax 2Figure 2. All species have an extensive underground rhizome tuber system.

Smilax pumila is a low growing (less than 2 ft.) woody vine (shrub). All species have an extensive underground rhizome tuber system (see Figure 2), and most have spines arising from the above ground stems. The plants are either male or female (a term known as dioecious in the plant world), and females bear fruit ranging in color from black or blue to red when they ripen. Even though this plant is hated by many, it makes many important contributions to the ecosystem. The fruits are eaten by a wide variety of birds, and the foliage and tubers are used as a food source by many forest animals.

People often wonder how the vine just seems to appear in their landscape and why it is so difficult to control. The answer for the miraculous appearance of the vine lies with our avian friends. They consume the fruit and pass them randomly throughout your garden when visiting. Seeds that survive the digestion process and pass from the bird can remain viable for long periods of time. When conditions are right, the seed will germinate. Within a short period of time, plants will begin to develop an extensive underground tuber / rhizome system and the viney above-ground stem.

Greenbrier is able to survive low light conditions and can easily survive deep in the crown of a shrub or forest. It may take two or three years to emerge from the plant canopy that it has been hiding in. During this time it will have developed an extensive underground rhizome / tuber system.

Greenbrier Control

Once the Greenbrier develops an extensive underground rhizome tuber system, it is difficult to control. If it is just one plant, physically removing the plant and as much of its tuber / rhizome system as possible is your best option. If physical removal of the plant is unrealistic or not possible, you should consider the use of herbicides. Herbicides with the active ingredient glyphosate (e.g., Roundup® and others) are your best options. The following are example situations where glyphosate could be used:

Situation #1:

If possible, unravel the greenbrier vine from the desirable plant. Remove as little of the vine as possible and be careful not to break any of the stems. Lay the vine on some bare ground or on a piece of plastic. Spray or sponge-apply a 10% solution of glyphosate (approximately 12 ounces of glyphosate / gallon of water, using a product containing at least 41% active glyphosate). Be careful to avoid drift or contact of the spray solution with desirable foliage or bark. Allow the herbicide to stay on the plant for 48 hours and then cut stem back to ground level. If the greenbrier attempts to regrow, spray or wipe a 10% solution of glyphosate on the sprouts when they are 6 to 8 inches high.

Situation #2:

If the greenbrier vine cannot be unraveled from the desirable shrub, cut the vine as close to the ground as possible. Immediately paint concentrated glyphosate on the cut stem. Make sure that the concentrated glyphosate is at least a 41% or greater active ingredient glyphosate. If the plant re-sprouts, sponge on or spray a 10% solution of glyphosate when the sprouts are 6 to 8 inches high.

Although not labeled, the author has done numerous field experiments on the postemergence control of Greenbrier and found the active ingredient triclopyr to be just as effective as glyphosate at controlling Greenbrier. Garlon 3A® (and others) is an amine formulation of triclopyr, and is the preferred formulation when working next to desirable plants. This formulation will not harm most grass species and is tolerated by many woody ornamental species. All experiments have indicated it should be used as 10% spray solution (12 ounces of Garlon 3A / gallon of water / 1 tablespoon of a non-ionic surfactant) or as a concentrated paint on cut stems. If you choose to use the amine formulation of triclopyr, it is recommended that sprays or cut stem treatments be applied to a small number Greenbrier / desirable plant combination, and then wait one week during the growing season to make sure no unacceptable damage occurs to desirable plant.

Posted in Agriculture | Leave a Comment »

Corn Southern Rust

Posted by romeethredge on June 27, 2013

_DSC7356_DSC7355Southern Rust is progressing some after coming up from the south. The weather we have had recently has been conducive to it’s progression and spread. Here are some photos from a field here in Seminole County. 

Here’s the link to the IPM Pipe where you can find out about where southern rust has been confirmed in the US. LLots of good information here. http://scr.ipmpipe.org/cgi-bin/sbr/public.cgi

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Posted in Corn, Plant Pathology | Leave a Comment »

Sunflowers for Oil

Posted by romeethredge on June 27, 2013

We have some sunflowers being grown to be crushed for some cooking oil and other uses in Seminole County.  They are being studied for biofuel uses as well. Jared Fiveash is here with some of his that we were scouting for stinkbugs, and we found quite a few on the edges.

They are maturing and seem to have a tremendous weight to them. It has been a good year apparently for sunflowers so far.

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Posted in Entomology | Tagged: | Leave a Comment »

We Work for Peanuts

Posted by romeethredge on June 19, 2013

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Peanuts are growing and looking better but they are still behind normal progression. Here are some April planted goober peas that have almost lapped, they are about 55 days old and are blooming well and  have begun pegging.

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We have a wide range of planting dates on peanuts like these that were June planted. I’m hearing about a few caterpillars that are showing up and we need to be timely on herbicide and fungicide sprays.

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Posted in Peanuts | Leave a Comment »

Question of the Week – Good Guy is the Spider

Posted by romeethredge on June 19, 2013

In my last question there was a small spider that had just caught a fire ant queen. The queen was on her flight to establish a new fire ant mound. So, I’d say the spider is the good guy. We don’t need any new mounds.

This week I have a question about this photo. What is this?

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Posted in Agriculture, Entomology | 1 Comment »

Southern Rust found in South Georgia

Posted by romeethredge on June 19, 2013

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Dr. Bob Kemerait, UGA Extension Plant pathologist, said we’d likely see Southern Rust after the recent storm and he was right. This is some Southern Rust I found yesterday in a corn field here in Seminole County. It was in highly managed irrigated early planted corn that was in the milk stage.

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

Deep South Stocker Conference

Posted by romeethredge on June 19, 2013

August 8-9, 2013   Athens, GA

The  fifth annual Deep South Stocker Conference is headed to Georgia.  This year’s conference will be held August 8-9, 2013 in Athens and Watkinsville.  Click on the location tab to the left for location details.  This conference is a  joint effort between the Alabama Cooperative Extension System, the Mississippi State University Extension Service, and the  University of Georgia Cooperative Extension.

This year’s conference will be a two-day event with live animal demonstrations and hands-on opportunities on Thursdays, August 8, and  educational seminars Friday, August 9.  Additionally, this year’s conference will be held in conjunction with Georgia Grazing School (www.GeorgiaForages.com). This will give producers an opportunity for up to three days of hands-on, demonstration, and classroom learning opportunities. Registration for each event is separate.  The Deep South Stocker Conference registration will cost $125/person and will cover all seminars, events, meals, and handouts for the two-day event.  Additionally, a trade show will be held in conjunction with the conference to allow stocker operators the opportunity to network with industry professionals and to become aware of products and services that can improve their profitably and product quality.

Go to this site for more info.

http://www.deepsouthstocker.com/

Posted in Cattle, Forages | Tagged: , | Leave a Comment »

Dry May Wet June

Posted by romeethredge on June 13, 2013

What a difference, May was so dry, with 0.56 inches recorded all month . Some spots didn’t get any. Then June arrives and we’ve had 5.14 inches in the first 10 days. See charts below from georgiaweather.net.

I see that 2011 was similar with a dry May but with a dry June. In red you can see the long term averages.

 

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Posted in Water | Tagged: | Leave a Comment »

Birds

Posted by romeethredge on June 12, 2013

I saw 2 interesting birds in the last couple of days.

I saw a flock of white Ibis in a cotton field yesterday and they were foraging around. I don’t know what they were doing, maybe eating some grasshoppers or maybe snacking on pigweed. They didn’t seem to be hurting the cotton. If I could teach them to pull up pigweeds that would be great.

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Then today I was looking at some corn and I saw these two Whistling Ducks in a small pond next to the corn field. I have seen them one other time last year at the edge of another corn field. In Mexico they call them pato maízal, Corn field Ducks. They are large birds that are not true ducks and are more like geese. They are fairly rare here. Here’s their normal range. _DSC7086_DSC7079

Posted in Wildlife | Tagged: | Leave a Comment »

 
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