1. Josh Bushong Area Extension Agronomy Specialist
2019 Dicamba Update
Josh Bushong
Area Extension Agronomy Specialist

2. Dicamba-tolerant Soybeans & Cotton
Roundup Ready® Xtend Crop Systems
Only three formulations approved
XtendiMax with VaporGrip® (Bayer)
FeXapan with VaporGrip® (Corteva)
Engenia® (BASF)

3. Label Updates EPA extended labels for 2 years
Future renewal based on drift issues
Still labeled as Restricted Use Pesticides
Only Certified Applicators can Purchase and Apply these products
Mandated annual training

4. Label Updates – Applications
Planting date required recordkeeping
Soybean, up to 45 DAP
Cotton, up to 60 DAP
Only top over-the-top applications

5. Label Updates – Applications
15 GPA minimum spray volume
1 hr after sunrise to 2 hr before sunset
Recommended to test spray solution pH & correct if less than 5

6. Label Updates – Rainfall
Do not apply if expected rainfall amount may exceed soil field capacity and result in runoff in the next 24 hr

7. Label Updates – Sensitive Plants
“Residential Areas” now combined with “Sensitive Crops”
Do not apply when wind is towards a neighboring sensitive area
Applicator must stop if wind changes towards area during application

8. Label Updates – Buffer
Only Buffer requirements for endangered and threatened species
No listed endangered terrestrial dicot plant species in Oklahoma at this time

9. Label Updates – Record Keeping
Generated in 72 hours
More than standard RUP’s
Planting date added this year
OSU Pest Ed Recordkeeping form

11. Why All the Issues??? Most dicots are very sensitive
Extremely low doses, below 1% of a full rate can cause symptoms
Additional label requirements to help prevent drift cases

12. Soybean Sensitivity

13. Other Crop Sensitivity

14. Summary Only XtendiMax, Engenia, FeXapan Annual Training Mandated
Schedule Trainings Soon
Contact Dr. Todd Baughman or your area agronomist

15. Contact Information
Josh Bushong
NW Area Extension Agronomy Specialist