Category Archives: Corn

25 May 2017

Southwestern Corn Borer in Non-Bt Corn

25 May 2017
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SWCB Larva (click to enlarge)

Moth traps catches clearly indicate that the first generation flight is peaking (link to moth trap catches). Local moth catches may vary considerably, and that is why we suggest running pheromone traps on your farm if you are growing non-Bt corn. The highest trap catches are on farms in U.S. Fish and Wildlife Refuges, primarily because they are not allowed to grow Bt corn. Please link to the publication below for more information about the management of this pest.  Below, I’ve also provided the suggested treatment threshold for southwestern corn borers in non-Bt corn during the whorl stage. Continue reading →

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12 May 2017

Moth Trapping Data

12 May 2017
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This is a reminder that moth trapping data for corn earworm (bollworm), tobacco budworm, and southwestern corn borer will be posted weekly during the summer. You can open the Excel file under the Quick Link menu on the left or directly at this link – http://www.utcrops.com/BlogStuff/2017MothTrappingData.xls. A few southwestern corn borers were caught this week, indicating the first generation is starting, perhaps just a little earlier than usual. Generally low numbers of corn earworm and tobacco budworm moths were also caught last week.

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25 Apr 2017

Glyphosate-Resistant Johnsongrass Management in Corn

25 Apr 2017
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A number of questions have arisen on how to manage the glyphosate-resistant (GR) Johnsongrass that is very prevalent in some corn fields of south west Tennessee.  Much of this corn is now in the V2 to V3 corn growth stage so some decision has to be made fairly quickly before the fields dry. Continue reading →

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31 Mar 2017

Tennnessee Variety Test Program Survey

31 Mar 2017
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Things have been busy this past month in the Tennessee variety test program as entries continue to roll in for our 2017 corn and soybean tests. This year we will be testing a total of 86 corn grain hybrids, 11 corn silage hybrids, and 195 soybean varieties across the state of Tennessee.

We know the variety test program is important to many of you. In order to make sure this program continues to meet your needs, we’d like some feedback from you!

If you are a Tennessee corn, soybean, wheat, or cotton producer, please take a few minutes to help us out by taking this survey. Producer – Variety Test Survey

If you are not a producer, but you provide folks with advice on variety selection (scout, retailer, seed company rep), then please take this survey. Industry – Variety Test Survey

Thanks for your help as we continue to figure out ways we can better serve you through our Tennessee variety test program!

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31 Mar 2017

Weed Control with your Cover Crop

31 Mar 2017
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With planting just around the corner, there are a few management considerations of cover crops that are being used for weed control. There is no single best way to manage all cover crops prior to any given cash crop. Tailoring the cover crop to best fit your cash crop can make a difference in the ultimate success of your weed control program. Continue reading →

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01 Mar 2017

Pest Management and Cover Crops

01 Mar 2017
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There is growing discussion and interest in the use of cover crops, mostly commonly in soybean but also in corn and cotton. Some of the benefits seem pretty intuitive and include improved control of erosion and the buildup of organic matter. Another obvious benefit is NRCS programs which pay growers to plant specified cover crops. Dr. Larry Steckel and his students have also shown benefits of cover crops in reducing the emergence of Palmer pigweed and some other weeds. However, having said all that, there are some concerns and unknowns about how cover crops might affect populations of soil and seedling pests. Continue reading →

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