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Encouraging the Use of Drift Reduction Technologies for Pesticide Applications --What’s in Store for 2007?

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Encouraging the Use of Drift Reduction Technologies for Pesticide Applications --What’s in Store for 2007?. Jay Ellenberger US EPA/Office of Pesticide Programs Field & External Affairs Division Western Region Pesticide Meeting May 2007. EPA’s Pesticide Drift Reduction Technology Program.

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Encouraging the Use of Drift Reduction Technologies for Pesticide Applications --What’s in Store for 2007?

Jay Ellenberger

US EPA/Office of Pesticide Programs

Field & External Affairs Division

Western Region Pesticide Meeting

May 2007

epa s pesticide drift reduction technology program
EPA’s Pesticide Drift Reduction Technology Program

Problem:

  • Off-target spray drift continues to be an important issue for applicators, growers, the public, EPA, and state enforcement authorities
  • Recent conclusions of EPA’s stakeholder assessment

Goals:

  • Reduce off-target spray drift and impacts on the environment and humans
  • The acceptance and use of a larger variety of verified drift-reducing technologies – equipment, chemicals, barriers

Approach:

  • Validate DRTs’ effectiveness through testing
  • Credit use in OPP’s risk assessment and risk management decisions on labels and in the field
slide3

 spray drift

Standard technology, no DRTgood DRT better DRT

No reduction25% reduction50% - 95% reduction

Desired Change

use of drift reduction technologies strong interest by
Use of Drift Reduction Technologies--Strong Interest by:
  • Pesticide Registrants
  • Adjuvant Manufacturers
  • Sprayer Manufacturers
  • Applicator Organizations
  • Academic Researchers
  • USDA ARS, NRCS
  • International agencies, organizations
  • Many advocacy organizations
  • EPA senior management
slide5

But there are barriers and

challenges to the use of DRTs

  • No established U.S. program to verify DRT performance
  • Encouraging applicators to move to different technologies
  • Currently no mechanism to reward use of DRTs
    • in EPA risk assessments
    • on pesticide labels
    • in the field by applicators/growers
epa experienced in technology performance verification
EPA – experienced in technology performance verification
  • Environmental Technology Verification (ETV) program
  • Environmental Technology Council
    • established by the EPA Administrator to achieve improved, real world environmental results through the application of innovative technology
  • Energy Star
what s the focus of the drt project
What’s the Focus of the DRT Project?

Current focus:

  • Ground & aerial application of row & field crops
  • Low Drift Nozzles/Atomizers
  • Drift Retardant products

Future:

  • Airblast application of orchards/vineyards?
  • Electrostatic Sprayers?
  • Shields/Shrouds?
  • Air Assisted Sprayers?
  • Windbreaks?
drt pilot process
DRT Pilot Process

Develop information to

support choice of DRT

Develop verification

program including test

protocol for DRTs

Conduct test/verification

of DRT performance

Update OPP drift models

for DRT use in risk

assessment

Nominate pesticide/use

compatible with DRT

(OPP and registrants)

Conduct grower/

applicator outreach

Develop label language

allowing/crediting

use of DRT

Conduct risk assessment

with DRT for

pesticide/use

Conduct cost savings

analysis

slide9

Relationship Between Application Technologies, Amount of Drift/Risk, and Risk Management

No DRT

DRT *

DRT **

DRT***

DRT****

Off-target distance at greatest risk

Amount. of drift and risk

Need for risk management restrictions

Amt. of drift = toxic level of concern for the pesticide

Distance from application site

need a valid test protocol
Need a valid test protocol
  • Develop a protocol to test/verify drift capabilities of specific technologies
    • Purpose: to develop test plans that will describe specific tests conditions used for a specific technology product (e.g., nozzle, drift retardant chemicals)
    • Draft protocol developed with input by DRT Stakeholder Technical Panel
    • Publicly available www.epa.gov/etv
what s the baseline to measure against and who and what s going to be tested
What’s the baseline to measure against and who and what’s going to be tested?
  • Select reference (baseline) technologies
    • Ground boom nozzles – ASAE standards
    • Aerial nozzles – Spray Drift Task Force (major agchem manufacturers), May-June
  • Solicit nozzle and adjuvant manufacturers to volunteer to have their technologies tested
    • FR Notice, May
where to conduct the tests
Where to conduct the tests?
  • Select qualified testing facilities
    • High (aerial) and low (ground) speed wind tunnels
    • Currently identifying candidate facilities
    • May-June ’07
  • Conduct tests of selected/volunteered nozzles and drift retardant chemicals
    • EPA plans to cover test cost of these initial tests
    • Summer-fall ‘07
what do we do with the results
What do we do with the results?
  • EPA review of completed test results
    • Verify adequacy of test
    • Determine potential to reduce drift compared to standard
    • Assignment each verified technology to a drift reduction category, such as:
      • DRT* 25% reduction
      • DRT** 50%
      • DRT*** 75%
      • DRT**** 95%
how would results be used
How would results be used?
  • Use of verified technologies in EPA registration decisions
    • Pesticide registrants choose to label their products for use with DRT verified technology
      • E.g.,“Apply this product with DRT with a 3-star rating”
      • Not specific technologies
    • EPA recognizes proposed DRT use/product label in risk assessment of pesticide
      • Application with DRT less drift less risk
      • Less use restrictions may be necessary for product
    • 2008
other important steps considerations to achieve goals
Other Important Steps/Considerations to Achieve Goals
  • Communications about DRT program
  • Incentives to keep program growing, self-sustaining
  • Education of growers/applicators on use of DRTs
  • Sales and purchase of DRTs—economics, supply/demand, benefits > costs
  • Expand range of tested technologies to include larger and other types of equipment, e.g., shielded sprayers, airblast equipment, electrostatic sprayers
this effort can benefit multiple stakeholders
This effort can benefit multiple stakeholders
  • Gives EPA data to use in its risk assessments/risk management decisions
  • Gives greater flexibility to grower/applicators to meet pest and drift control needs
  • Supports private-sector technology development
  • Reduces impact of spraying on humans and ecosystems
  • Sale & use of verified DRT products and pesticides labeled for use with DRTs fit with pesticide stewardship
thank you
Thank You

Questions?

Discussion

Jay Ellenberger

703-305-7099

[email protected]

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