Category Archives: Diseases

Most of the wheat in Tennessee is in the milking/dough growth stage (early kernel growth stages – Feekes 11.1 to 11.2) and the window to apply fungicides has passed.  Continue reading →

Disease levels in Tennessee have increased over the last couple of weeks.  I have gotten more reports on stripe rust, a few fields with powdery mildew, have seen leaf blotch (Septoria blotch) in every field, and with wheat beginning to bloom Fusarium head blight is on the disease radar. Continue reading →

It’s time to start scouting your wheat for diseases if you haven’t already! The wet, humid weather we’ve had in Tennessee can promote disease development Continue reading →

The Plant Management Network (http://www.plantmanagementnetwork.org/) website has posted recorded presentations of the 2012 Cotton Incorporated Crop Management Seminar (linked below). Continue reading →

The joint Kentucky-Tennessee Grain Conference will be held on February 8, 2013 at the Logan County Extension Office, 255 John Paul Avenue, Russellville, KY.  The program begins at 8:00 AM and ends at 3:00 AM.     Program

The Tennessee Grain & Soybean Producers Conference is scheduled for Thursday, February 7 at the Dyer County Fairgrounds, James Rice Road, in Dyersburg (GPS coordinates: N 36.066730, W 089.365147). Registration begins at 7:45 AM with the first presentation scheduled for 9:00 AM.  Trade show and sponsor booths will be open at 8:00 AM.      Draft Program       Directions

The Middle Tennessee Grain Conference is scheduled for Thursday, January 31 at the Coffee County Fairgrounds in Manchester.  Registration begins at 7:30 AM, with the first presentation scheduled for 8:30 AM.  Contact the Coffee County Extension Office (931-723-5141) for registration information.  Complete Program

Please see the revised program for the annual UT Cotton Focus meeting being held on Thursday, February 14 at the West Tennessee Research and Education Center in Jackson.  Pre-registration is not required.    Program

 It’s that time of year to sample soybean and cotton fields for nematodes, especially problematic fields.  Many fields that exhibit nutrient deficiencies may have nematode problems and the only way to know is to sample. Continue reading →

Fungicidal seed treatments for wheat have been previously recommended in Tennessee and this year is no different. Pathogens residing in or on the seed or in the soil can survive adverse environmental conditions such as drought and winter temperatures by forming survival structures or lying dormant until favorable environmental conditions return.  Hence the drought during 2012 will not reduce the risk posed by seed or soil borne pathogens. Continue reading →

Soybean rust has not been detected infecting soybeans or kudzu in Tennessee as of this date. However, extremely small amounts of soybean rust have been confirmed in several counties in central Mississippi and some in Alabama and Arkansas. This is in the delta about 60 to 70 miles from the border of Tennessee. The amount of rust found was small but active. We are continuing to monitor for soybean rust in 12 soybean sentinel plot locations across Tennessee. Continue reading →

For those still intending to apply a foliar fungicide to soybean, if you are using a triazole or triazole-containing product please be careful about the additives you include.  Some folks are reporting foliar leaf burn very similar in appearance to Sudden Death Syndrome (yellow to brown areas between leaf veins).  Injury seems to be the result of adding additional products (crop oil, glyphosate, micronutrients, some insecticides) not required on the fungicide label, to a triazole product.  The hot weather we have been experiencing may be making the situation worse. Continue reading →