Entry forms will be collected through Friday, September 3rd for the 2021 Top Bean yield contest. Continue reading
Category Archives: Soybean
Palmer amaranth Escaping Auxin Herbicides as well as Follow Up Liberty Application
We have visited fields where growers have found that Palmer amaranth that escaped an auxin herbicide (Engenia, XtendiMax, Enlist One) application also escaped follow-up glufosinate (Liberty) application (Pictures 1 and 2). Auxin herbicide-resistant Palmer amaranth was documented in Tennessee last year. As such, it was not a surprise to find dicamba or 2,4-D fail to control pigweed. Glufosinate-resistant Palmer amaranth was documented in Arkansas last year. We have not found glufosinate-resistant Palmer amaranth on the Tennessee side of the river. However, the reports from these fields has us concerned the glufosinate-resistant biotype has indeed crossed the river. Part of the reason for the concern is that we had research fairly close to these suspect fields that showed similar poor Palmer control with dicamba or 2,4-D followed by glufosinate. Continue reading
Scouting for Soybean Diseases and Deciding on Fungicides
As soybean fields are blooming, disease scouting needs to start to guide fungicide application decisions. Continue reading
Manage Large Palmer amaranth Escapes
We have visited fields where growers assumed their Engenia or XtendiMax + glyphosate had controlled Palmer amaranth only to find that many had escaped and are now quite large (Picture 1). The question is what are some approaches to manage these escapes? Continue reading
Management of Auxin-Herbicide Resistant Palmer Amaranth
In fields where dicamba and 2,4-D are no longer effectively controlling Palmer amaranth what are some options to help manage this weed? We conducted research at several locations this year trying to answer this question.
REMINDER: 2021 Soybean Scout Schools
UT’s Soybean Scout Schools will be held in July (see details below). Continue reading
Top Bean Soybean Yield Contest in 2021
Once again, eligible soybean producers will have the opportunity to participate in the Tennessee Top Bean high yield contest. Continue reading
Dicamba and 2,4-D: No longer “Palmer amaranth Herbicides” in Some Fields
For the past week we have been getting reports along with a good many pictures of Palmer amaranth escaping dicamba application/s from retailers and consultants scouting fields (Picture 1 and 2). As one retailer so aptly described it today “there are spots in fields where the lack of Palmer control is frightening”. Continue reading