All posts by Larry Steckel, Extension Weed Specialist

UT Weed Tour June 19

Author:  Comments Off on UT Weed Tour June 19

Dear Colleagues,

The University of Tennessee Weed Tour will be held Wednesday, June 19 at the West Tennessee Research & Education Center in Jackson, TN (605 Airways Blvd).  Registration will start at 8:30 A.M. and the tour will begin at 9:00 A.M.  It will end about 11:30. We will have breakfast biscuits available before the tour starts. Continue reading


Ryegrass and Poa Management in Corn

Author:  Comments Off on Ryegrass and Poa Management in Corn
Ryegrass escaping glyphosate plus dicamba burndown

Clearly this year,  many are having trouble managing ryegrass and poa.  Questions began months ago and continue today and have ranged from tactics to burn them down before planting to how to control them in a standing corn crop. What has become abundantly clear is that glyphosate is no longer an effective burn down option for either species across much of the state. Continue reading


Does adding glyphosate to low-volatile dicamba formulations increase volatility?

Author: and  Comments Off on Does adding glyphosate to low-volatile dicamba formulations increase volatility?

All week we have discussed UTIA’s latest research on low-volatile dicamba formulations.  We will end this series of blog posts with one of the first questions asked by TN soybean producers: Does adding glyphosate to low-volatile dicamba formulations increase its chances of moving outside the treated field via volatility? Continue reading


Effect of pH Modifiers on pH of Dicamba+Roundup PM Mixtures

Author: and  Comments Off on Effect of pH Modifiers on pH of Dicamba+Roundup PM Mixtures

Tennessee soybean growers asked my colleague, Dr. Tom Mueller, and me to vet some of the directions on the XtendiMax and Engenia labels.  In this third post we examine the ability of three pH modifiers approved on the Engenia label to raise spray tank pH. Continue reading


AMS or Glyphosate Mixed with the Low-Volatile Dicamba Formulations – Which One Lowers Spray Tank pH the Most?

Author: and  Comments Off on AMS or Glyphosate Mixed with the Low-Volatile Dicamba Formulations – Which One Lowers Spray Tank pH the Most?

This is the second in a series of blogs on research that Dr. Tom Mueller and I did to examine some of the directions on the XtendiMax and Engenia labels. In the second test, we examined the effect on spray solution pH when AMS was added to Engenia or XtendiMax, with or without glyphosate. Continue reading