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Category Archives: Diseases

24
Aug
2014
2014 University of Tennessee Cotton Tour
Author: Tyson Raper, Cotton & Small Grains Specialist No Comments
 
23
Aug
2014
Soybean Disease Update
Author: Heather Young Kelly, Extension Plant Pathologist 2 Comments

While many full season soybean fields are past the growth stage of spraying a fungicide (R6), later planted soybean may still benefit from a fungicide application. Continue reading

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13
Aug
2014
Cotton and lightning
Author: Tyson Raper, Cotton & Small Grains Specialist No Comments

wide_angle_injury_from_strike

 

I have visited several fields in the past few weeks to examine circular/slightly irregular areas characterized by wilt, severe necrosis and death. After visiting with several other specialists, it is our consensus that these injured areas were caused by lightning. Although no action can be taken to bring injured plants out of the stress, additional information on plant symptoms may help you properly diagnose the stress and reduce the amount of ‘flak’ directed at your sprayer operator. Continue reading

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11
Aug
2014
Corn and Soybean Field Day – Today (8/19/14)
Author: Heather Young Kelly, Extension Plant Pathologist Comments Off

Don’t forget the UT corn and soybean field day today at the Research and Education Center in Milan (3 Ledbetter Rd, Milan, TN 38358). Registration opens at 9:00 and tour will be begin at 9:30 a.m and will conclude with lunch.

Information on corn and soybean diseases, insects, and weed management, as well as agronomic information will be presented. Pesticide re-certification and CCA CEUs will be available.

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31
Jul
2014
Sudden Death Syndrome (SDS) in Soybean
Author: Heather Young Kelly, Extension Plant Pathologist 1 Comment

Sudden Death Syndrome (SDS) has started showing up in soybean fields in Tennessee. The cool, wet season Tennessee has experienced, similar to last season, has been conducive for the disease to develop in susceptible varieties. Continue reading

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19
Jul
2014
Proper Nozzle Selection for Pesticide Applications
Author: Shawn Butler, Graduate Research Assistant Comments Off

As we get further into the year, bugs begin to enter our fields, disease onset starts to occur, and weeds continue to flourish, our chances of making tank-mixed applications increase. This ultimately makes spray nozzle selection more challenging as most products require different droplet sizes.  Continue reading

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14
Jul
2014
Reminder: Milan No-till Field Day This Thursday
Author: Scott Stewart, IPM Extension Specialist Comments Off

Without a doubt, the Milan No-Till Crop Production Field Day is one of the most far-ranging agricultural field days in the nation. The event is a junction for producers with varied farming interests. Tours will cover topics as diverse as row crop sustainability, beef cattle production, natural resource management, unmanned aerial systems and even the compatibility of honeybees and agriculture. Registration is free and begins at 6 a.m. CDT, with the first tours leaving at 7 a.m. A total of 16 tours are on the agenda. Continue reading

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14
Jul
2014
Webcast on Management of Frogeye Leaf Spot and Fungicide Resistance
Author: Heather Young Kelly, Extension Plant Pathologist Comments Off

There is a 14 minute webcast on the Plant Management Network on Management of Frogeye Leaf Spot and Fungicide Resistance that provides some basic knowledge on FLS disease, its management, and fungicide resistance. Continue reading

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13
Jul
2014
Scouting for Soybean Diseases and Deciding on Fungicides and Application Timing
Author: Heather Young Kelly, Extension Plant Pathologist Comments Off

As full season soybeans in Tennessee reach reproductive growth stages, scouting for disease is critical to determine how necessary a fungicide application may be in protecting yield from disease. Continue reading

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13
Jul
2014
Distinguishing Frogeye Leaf Spot from Chemical Injury in Soybean
Author: Heather Young Kelly, Extension Plant Pathologist 1 Comment

Frogeye leaf spot (FLS) has begun to show up in susceptible varieties in Tennessee, but there is also some chemical burn in soybean that can be mistaken for FLS. Continue reading

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10
Jul
2014
Reminder: Soybean Scout Schools
Author: Scott Stewart, IPM Extension Specialist 3 Comments

UT’s annual Soybean Scout Schools are set for the dates and times below.  These field-side programs last 2-2.5 hours and address general crop management including plant development and management of weed, disease and insect pests. As always, scouting supplies and sweep nets are Continue reading

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26
Jun
2014
Considerations for Fungicide Application in Tasseling Corn
Author: Heather Young Kelly, Extension Plant Pathologist Comments Off

With corn tasseling in Tennessee, it is time to consider a fungicide application. Continue reading

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