Many soybean fields are in reproductive growth stages and need to be scouted for disease to decide if a fungicide is needed. Some diseases that have been observed in fields in Tennessee include frogeye leaf spot, septoria brown spot, and downy mildew. Continue reading
All posts by Heather Marie Kelly, Extension Plant Pathologist
Corn Disease Update
So far corn diseases have been scarce in Tennessee in the 2016 season. Continue reading
Scouting for Soybean Diseases and Deciding on Fungicides
To determine if a disease will become a significant PEST, that will effect yield, four main factors need to be considered… Continue reading
Distinguishing Diseases from Chemical Injury in Soybean
Soybean diseases and chemical injury can be difficult to correctly diagnose in the field. Some general information about diseases in soybean and common chemical injury follow to help distinguish between the two. Continue reading
Corn Disease Update
With the earliest planted corn in Tennessee tasseling, corn should be scouted for diseases which are key factors when considering fungicide application. In the southeast, common and southern corn rust have been reported, although neither have been found in Tennessee yet. Continue reading
Fusarium Head Blight/Head Scab Update
As expected risk for Fusarium Head Blight/Head Scab has started to increase in the western part of Tennessee with wheat starting to bloom and rain in the forecast. Continue reading
Prevent Scabby Heads – Assessing Fusarium Head Blight in Wheat
Most wheat in Tennessee has started or will start to bloom in the next week or two which is the critical timing to apply a triazole fungicide for prevention of Fusarium Head Blight (FHB or Head Scab). Continue reading
Fungicide Considerations in Wheat
More observations of stripe rust in wheat have been reported in West Tennessee. The answer to the question, “Do I spray now or wait until bloom?” depends on amount of disease present, variety, growth stage, and weather. Continue reading