Authored by Heather M. Kelly, Extension Plant Pathologist and Tyson Raper, Cotton and Small Grains Specialist
The abnormally warm and wet conditions in the Mid-South during August have contributed to the highest level of target spot-driven defoliation in commercial fields to date. Still, the majority of Tennessee’s cotton will not see a yield penalty from the disease due to a late onset and very low levels of defoliation. Continue reading
A sample from the soybean sentinel plot in Coffee County collected August 29th contained very low levels of soybean rust. Late planted soybeans in the area are at risk and would benefit from a fungicide application. Continue reading
In the past weeks soybeans have gotten into reproductive growth stages and diseases have started appearing as well as questions about making fungicides combinations. Continue reading
Since the first report of target spot in cotton in Tennessee in 2013 it has been found in more fields and earlier in the season. This year in particular some have sprayed a fungicide to protect their cotton in Tennessee. Continue reading
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
So far corn diseases have been scarce in Tennessee in the 2016 season. Continue reading
To determine if a disease will become a significant PEST, that will effect yield, four main factors need to be considered… Continue reading
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