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
06
May
2013
All posts by Heather Marie Kelly, Extension Plant Pathologist
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
22
Apr
2013
Wheat Disease Update
22
Apr
2013
Amongst all the corn planting don’t forget to check on your wheat. So far disease levels, in general, have remained low in wheat fields in Tennessee, but that can change quickly. Continue reading
12
Apr
2013
Time to Scout Wheat for Diseases
12
Apr
2013
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
12
Oct
2012
After Harvest – Sample for Nematodes
12
Oct
2012
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
28
Sep
2012
Soybean Rust Update
28
Sep
2012
Soybean rust was detected on 1 leaflet out of 20 collected from a soybean field on the Milan Research and Education Center. The infected leaflet had approximately 20 sporulating pustules. No fungicide was applied to the soybeans and the sample was collected from a low lying spot of the field where soybean rust has been reported in previous years. The soybeans are in reproductive growth stage R6 – R7. Samples from soybean sentinel plots across the state are being examined to determine any other areas with soybean rust infections. Continue reading
17
Sep
2012
Fungicidal Seed Treatments for Wheat
17
Sep
2012
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
05
Sep
2012
Southern Stem Canker Showing Up
05
Sep
2012
Stem canker is now causing severe damage and death in some susceptible soybean varieties at the Milan REC and at two field research locations near Dyersburg, TN. This is the most stem canker we have noted in several years. Continue reading