Dicamba Herbicide Updates
Dicamba containing herbicides, including formulations such as XtendiMax with VaporGrip Technology (EPA Reg. No. 524-617), Engenia Herbicide (EPA Reg. No. 7969-345), FeXapan Herbicide Plus VaporGrip Technology (EPA Reg. No. 352-913), and Tavium Plus VaporGrip Technology (EPA Reg. No. 100-1623) have been in the news and under review by state and federal pesticide regulators since 2017, based on excessively high numbers of off-target movement (drift and volatilization) complaints.
This website is intended to provide interested parties with regulatory and other related information associated with dicamba herbicides in Indiana.
- Dicamba Highly Volatile Herbicide (HVH) Frequently Asked Questions (03-08-21) (pdf, 487kb)
- Highly Volatile Herbicide (HVH) final determination (pdf, 1MB)
- List of Dicamba RUPs in Indiana (03-22-21) (pdf, 91kb)
- 2021 Dicamba Frequently Asked Questions (FAQs) (01-21-21) (pdf, 202kb)
- Field Watch and CropCheck Mapping Use (source: Progressive Farmer)
- Corteva to Discontinue Sales of FeXapan Herbicide (pdf, 240kb)
- 2020 EPA Dicamba Registration Frequently Asked Questions (source: EPA)
- EPA Rejects NC 24c Spray Date Extension (pdf, 2MB)
- Ground Truthing Weather Apps for Wind Speed and Temperature Inversions
- Restricted Use Classification of Dicamba Containing Herbicides
- Removing Herbicide Residues from Agricultural Application Equipment (How Proper Cleaning Helps Prevent Crop Damage and Improves Performance)
- Response of Roundup Ready Soybean Yield to Dicamba Exposure (source: Purdue Extension)
- Response of Glyphosate-Tolerant Soybean Yield Components to Dicamba Exposure (source: ResearchGate)
- DriftWatch Sensitive Crop/Site Registry (source: DriftWatch)
- What Have We Learned from Four Years of Studying Temperature Inversions? (source: University of Missouri)
- Five Things We've Learned About Dicamba (source: University of Missouri)
- Dicamba Losses to Air after Applications to Soybean under Stable and Nonstable Atmospheric Conditions (pdf, 3.1MB)
- Inversion Climatology in High-Production Agricultural Regions of Missouri and Implications for Pesticide Applications (pdf, 12.8MB)