All posts by Tom Mueller, Professor of Weed Science

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


Effect on Tank-Mixture pH when Glyphosate is Added to Either XtendiMax or Engenia

Author: and  Comments Off on Effect on Tank-Mixture pH when Glyphosate is Added to Either XtendiMax or Engenia

With the off-target dicamba movement in recent years, Tennessee soybean growers asked my colleague, Dr. Tom Mueller, and me to vet some of the directions on the XtendiMax and Engenia labels.  The goal was to come up with information to help mitigate off-target dicamba. In a series of blog posts this week, we will share our most current findings. Continue reading