Category Archives: Diseases

Saving money when it comes to trips across the field with a sprayer can be appealing, but it’s important to keep some things in mind when deciding to mix herbicides with other pesticides and/or fertilizers.  With these types of applications, you risk mistakes on application timing, appropriate gallons of water per acre, and possibly using incorrect nozzles, all of which can result in poor efficacy.  However, you also risk crop injury with some of these combinations.  Continue reading →

Stripe Rust ( Puccinia striiformis): Early infections of stripe rust or yellow rust have now spread into many susceptible fields of wheat aided by the cool weather. Some yellow spots in the field may be totally covered with stripe rust and will cause yield reduction. Producers who have sprayed a foliar fungicide should experience Continue reading →

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Wheat Stripe Rust (Puccinia striiformis) has been found in West Tennessee.  This rust is also called yellow rust and is very easy to identify because the individual pustules are lined up in conspicuous stripes or rows between the veins of the leaves.  The rust pustules start out as very small yellow spots but quickly Continue reading →

A number of people asked if we could make available the slides used during the Irrigation Workshop that was held in Jackson on February 23rd.  The slide shows can now be viewed at http://www.utcrops.com/presentations.htm.

A reminder that the annual Tennessee Grain and Soybean Conference will be held Thursday, February 2nd at the Dyer County Fairgrounds in Dyersburg.  Registration begins at 7:45 with the program beginning at 9:00.  Program details.

No one can blame you if you are confused about seed treatments? There are options that differ by crop and seed companies. Furthermore, pricing is not always transparent and some seed company websites are vague or do not even mention seed treatment options. There are really three pest groups that seed treatments target; namely seedling fungal diseases, insects Continue reading →

With two thirds of our soybean crop falling under the category of ‘late planted’ whether or not they are following wheat, we are a week or two away from the optimal window for fungicide sprays on late beans. Continue reading →

Corn fungicides have been going on a good number of acres in areas that have aerial application options.  We have more May planted corn this season that is tasseling now and pretty good soil moisture.  We typically have more disease pressure in May planted corn although reports of Gray Leaf Spot and other diseases have been sporadic in rotated ground.  A better return on your money is most likely where some disease is evident, yield potential is decent and the hybrid has shown more of a response to a fungicide based on field testing.  Continue reading →

There are two remaining Soybean Scout Schools scheduled for Tennessee (see below).  These are field-side programs designed to give practical training on soybean management including insect, disease and weed control.  Each program is 1.5 – 2 hours long.  Participants will receive a scouting notebook and a sweep net while supplies last.  Directions are Continue reading →

Last year, we had more reports of aflatoxin in corn than previous years and with the extreme heat we are experiencing now, folks have concerns once again about managing aflatoxin.  Producers who went to winter meetings may remember some UT data shown about an aflatoxin preventative product called AflaGuard marketed by Syngenta.  Continue reading →

Stage of Growth to Apply Wheat Foliar Fungicides: Close attention must be paid to the stage of growth to obtain maximum benefit from foliar fungicides.  If the application is made Continue reading →