Category Archives: Corn

Thinking About Insect Pests During Planting Season

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Black cutworm and cut cotton plant

There are some basic management practices that can affect, sometimes worsen, and other times be used to reduce risks of insect pest injury. Below, I’ve included some observations and suggestions for your consideration.

As a general rule of thumb (but not universally true), no-till production increases the risk of some problems including pests like cutworm, threecornered alfalfa hopper, slugs, and several below ground pests (e.g., wireworms and white grubs). Of course, tillage is not an option in most areas of Tennessee. Thus, most entomologists suggest Continue reading


Field Crop Insect Management Recommendations (PB 1768) Available Online

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The 2020 version of PB 1768, Insect Management Recommendations for Field Crops (and pasture), is now available. The guide has gone through substantial revision this year and closely matches the content on the mobile friendly Disease and Insect Field Guides at https://guide.utcrops.com/. Hard copies will be available soon and distributed through county extension offices and at various educational meetings.


Tennessee Certified Pesticide Applicator Recertification, Dicamba and Paraquat Training in 2020.

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Tennessee Certified Pesticide Applicators must take recertification training in 2020. The recertification training is good for three years. In addition, those who will be spraying Engenia, Tavium, FeXapam or XtendiMax on Xtend crops must take dicamba training in 2020. A new addition from the EPA will be the requirement that anyone who purchases, mixes or applies a paraquat-containing herbicide to take the “How to Safely Use and Handle Paraquat-Containing Products” training module. Continue reading


2020 Middle Tennessee Grain Conference (Feb. 4, Tullahoma)

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The 2020 Middle Tennessee Grain Conference will be held at the UT Space Institute in Tullahoma, TN on February 4th. Registration begins at 7:30 AM with the program starting at 8:30 AM.  Participants are asked to pre-register at their local UT Extension Office until noon on January 31. Payment will also be accepted at the door. The $10 registration fee includes the program, refreshments, lunch, a conference cap, and a proceeding notebook.

Pesticide/dicamba re-certification will also be offered at 2:30 PM.  Additional details, including the registration form are available at Middle TN Grain Conference Flyer.

 


2019 County Standardized Trials Corn Data

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The 2019 County Standardized Trials data are now available. This year, 58 hybrids were evaluated with 49 test locations being harvested.  A great corn year brings the overall average across all locations and hybrids to 206 bu/ac.  The tables are separated into 3 maturity groups, early <114 day, medium 114-116 day, and full >116 day corn.  Hybrids are listed in descending order within each maturity across locations.  UT recommends selecting hybrids that are in the A group statistically. Hybrids with *’s next to their name, have been in the A group for consecutive years.  Two (**)  indicate this hybrid has been in the A group for 3 consecutive years.

A special thanks to those companies involved in these trials for sending a great lineup.  Thank you to all the county agents involved in getting these trials in and out.  Thank you especially to the producers who allow these trials to be placed in their fields to provide all of Tennessee with a non-bias look at head to head yield comparisons across the state.