On Aug. 2nd soybean rust (SBR) was detected in a soybean sentinel plot in DeKalb County, Alabama, in the northeast corner of the state. Less than 1% of the plants had visible symptoms. Continue reading
05
Aug
2013
All posts by Heather Marie Kelly, Extension Plant Pathologist
29
Jul
2013
Scouting and Sampling Frogeye Leaf Spot in Soybean
29
Jul
2013
The rain that most of Tennessee has been receiving benefits not only soybeans but also soybean diseases and in particular, frogeye leaf spot. This disease has become more concerning with strains of the pathogen (Cercospora sojina) developing resistance to fungicides in the strobilurin (quinone outside inhibitor – QoI) fungicide group. Continue reading
16
Jul
2013
Scouting for Soybean Diseases and Deciding on Fungicides and Application Timing
16
Jul
2013
As the earliest planted soybeans in Tennessee near reproductive growth stages, scouting for disease is critical to determine how necessary a fungicide application may be in protecting yield from disease. The amount and severity of a disease Continue reading
21
Jun
2013
Scouting Corn for Foliar Diseases and Fungicide Applications
21
Jun
2013
With the earliest planted corn in Tennessee tasseling, corn should be scouted for diseases which are key factors when considering fungicide application Continue reading
23
May
2013
Expected Outcome of Fungicide Applications on Early Vegetative Corn (V5-V6 Growth Stages)
23
May
2013
Over the past couple of seasons more fungicide applications have been marketed for application at early vegetative growth stages in corn (V5-V6 growth stages). Based on the majority of university research data… Continue reading
17
May
2013
Tennessee Wheat Ranges in Maturity from the Milk to Dough Stage – Symptoms of Fusarium Head Blight (Scab) May be Visible
17
May
2013
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
06
May
2013
Considering Wheat Fungicide Application at Flowering
06
May
2013
Wheat in Tennessee has headed out and a good majority is flowering, which is the main growth stage for applying fungicides for Fusarium head blight (FHB or scab) control. Continue reading
30
Apr
2013
Wheat Disease Update and Fungicide Considerations
30
Apr
2013
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