Dr. Calvin Trostle, Professor & Extension Agronomist/AgriLife State Hemp Specialist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu Dupont’s popular insecticide Prevathon is now a product of FMC.  The use instructions for crops and pests are essentially the same.  The percentage of active ingredient ‘RynaXypyr’, or chlorantraniliprole, is much different.  This leads to large changes in the labeled application rates.  Prevathon was 5.0%, Vantacor is 47.85%. Prevathon became popular for several reasons.  First, there is some limited movement—translaminar flow is what Dupont called it—within plant… Read More →