Lessons Learned Panel on Dicamba Registration Incidents Outreach AAPCOs 71 st Annual Meeting March 6 2017 Dicamba A Federal Perspective Summary of dicamba issues label changes and a discussion on the road ahead ID: 727918
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Reuben Baris, U.S. Environmental Protection AgencyLessons Learned: Panel on Dicamba – Registration, Incidents, OutreachAAPCO’s 71st Annual MeetingMarch 6, 2017
Dicamba
: A Federal Perspective
Summary of
dicamba
issues, label changes, and a discussion on the road aheadSlide2
2U.S. Environmental Protection AgencyNew Uses for
dicamba
-tolerant soybean and
dicamba
-tolerant cotton were registered in late 2016Three products were approved for use with 2 year expiration dates Xtendimax with VaporGrip Technology (EPA reg no. 524-617)Engenia Herbicide (EPA reg. no. 7969-345)DuPont FeXapan Herbicide Plus VaporGrip Technology (EPA reg. no. 352-913)
Dicamba
Over-the-Top UsesSlide3
3U.S. Environmental Protection AgencyMay/June 2017 EPA started receiving reports of significant crop damage following applications of
dicamba
Early reports were reported in
Bootheel
of MissouriAs the season progressed, reports of soybean damage spread across southern states and northern MO, into the Midwest and DakotasSummary of 2017 Dicamba IncidentsSlide4
4U.S. Environmental Protection AgencyOctober 15, 2017: 2,708 official
dicamba
-related crop injury investigations (collected by Univ. of Missouri Ag. Extension as reported by state departments of agriculture)
More than 3.6 million acres of soybeans impacted
Other impacted crops: tomatoes, watermelon, cantaloupe, vineyards, pumpkins, vegetables, tobacco, residential gardens, trees and shrubsNot all reports of crop damage were reported to State Departments of AgricultureIncident Summary Continued…Slide5
U.S. Environmental Protection AgencySource:
Univ. of Missouri, IPM, Dr. Kevin Bradley
https://ipm.missouri.edu/IPCM/2017/10/final_report_dicamba_injured_soybean/
Dicamba-Related Injury Investigations Reported by State Departments of Agriculture (*as of Oct 15, 2017)
5Slide6
Estimated Dicamba-Injured Soybean Acreage
(*as of October 15, 2017)
U.S. Environmental Protection Agency
Source:
Univ. of Missouri, IPM, Dr. Kevin Bradley https://ipm.missouri.edu/IPCM/2017/10/final_report_dicamba_injured_soybean/
6Slide7
7U.S. Environmental Protection AgencyPhysical DriftTank Contamination
Temperature Inversions
Volatility
Misuse
Summary of InvestigationsSlide8
8U.S. Environmental Protection AgencyEPA engaged State Lead Agencies and University Weed Scientists soliciting information to cooperatively develop solutions to address the
dicamba
incidents reported in the field
Cooperative efforts among University Academic, Industry and Growers were used to inform EPA’s regulatory decision making
Summary of Investigations Cont’d…Slide9
9U.S. Environmental Protection AgencyFurther minimize the potential for off-target movement by addressing application practices
Reduce ambiguity across registered products
Retain the utility of the technology recognizing the clear benefit and importance for managing weed resistance
Federal label intended for all 34 states where
dicamba is registered on dicamba-tolerant soybean and cottonEPA Objectives for 2018 Label ChangesSlide10
10U.S. Environmental Protection Agency
All three products are Restricted Use Pesticide products
For retail sale to and use only by Certified Applicators or persons under their direct supervision and only for those uses covered by the Certified Applicator’s certification
Dicamba
-specific training is required for all applicatorsEach label limits applications to when maximum wind speeds are below 10 mph (from 15 mph) to reduce potential spray drift;Applications may only occur between Sunrise and SunsetTank clean-out language to prevent cross-contaminationSusceptible/sensitive crop identification and record keeping with sensitive crop registries to increase awareness of risk to especially sensitive crops near application siteRUP designation requires applicators to maintain specific records regarding the use of these products
Summary 2018 Label ChangesSlide11
11U.S. Environmental Protection AgencyAll registrants have agreed to get the revised labels into the hands of farmers in time for the 2018 use season
EPA, cooperatively with SLAs, will monitor the success of these changes to help inform regulatory decisions for the use of
dicamba
on tolerant soybean and cotton beyond 2018
Implementation of New LabelsSlide12
12U.S. Environmental Protection AgencyRegistrations for over-the-top uses on
dicamba
-tolerant uses were all registered with a two-year expiration
EPA and SLA cooperation to monitor the current situation (Planned regular and frequent communication)
Obtain relevant data/information in a timely manner to inform decision making All eyes are on 2018…Slide13
13U.S. Environmental Protection AgencyQuestions/Discussion?