Category Archives: Corn

10 Nov 2025

2025 County Standardized Trials-Corn Data

10 Nov 2025
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Thank you to all those who participated in County Standardized Trials this year.  Our corn data is in and reported below.

For more information or assistance with the CST program, please contact your local County Extension office.

Early Maturity <113 day RMTable of corn hybrid yields across various locations.

Medium Maturity 114-116 day RMCorn hybrid yield comparison table with various metrics.

Full Maturity >116 day RMComparison table of hybrid crop yield data.

These CST plots are large strip trials located ‘on-farm’ with a minimum of 300 feet in length.  Inputs and management decisions are on a by location basis and determined by the cooperating producers.  Three relative maturity groups divide the trials, Early Corn will be 113 day and earlier, Medium Corn will be 114-116 day, and Full Corn is 117 day plus.  Thank you to everyone involved in the CST program for your support and contributions: County Agents, UT Extension/Research, Growers, Industry, Retail.

 

Soybean and Cotton CST trials to follow. Visit search.utcrops.com for all variety testing data.

 

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08 Nov 2025

Italian Ryegrass Resistance to Glyphosate and Clethodim

08 Nov 2025
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Young grass seedlings in black pots on tray.
Two Gibson County Populations of Italian Ryegrass Escaping 16 ozs Clethodim 21 DAA

We recently rated our Italian ryegrass screen in the greenhouse for glyphosate and clethodim resistance. The first two runs were conducted on 13 populations across 11 counties in West Tennessee. Continue reading →

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07 Oct 2025

Perennial Vine Control

07 Oct 2025
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Dry cornfield with overgrown green vines.
Burcucumber growing over top of mature corn

Practically every fall some growers are dismayed at the vine infestations present at corn harvest.  Often, these weed infestations emerged after the PRE applied or early POST applied herbicides had played out.  They grew very little until August and as the corn dried down and light became more available those established weeds started rapidly growing. Continue reading →

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19 Jun 2025

Herbicide Stewardship Crunch Time

19 Jun 2025
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The weather forecast, if accurate, suggests next week will dry up enough where we all can get back in the field.  Everyone will need to be running sprayers as weeds have not stopped growing.  I know everyone will be in a rush, but please, please take the time to be good stewards and apply herbicides as directed by the labels. Continue reading →

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06 Jun 2025

Corn Herbicide Cut-off Stages

06 Jun 2025
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Young corn plants in mulched field
4 – Leaf Corn

Due to little time and very few good spray days, some corn fields have yet to have their layby application. Corn is putting on a new leaf every 3 days with all the heat and water. Therefore, time is short before it will be too mature to apply many herbicides safely over the top. Continue reading →

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