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Pesticide Regulation Susan King Extension Specialist University of Delaware
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Pesticide Regulation Susan King Extension Specialist University of Delaware.

Jan 17, 2016

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Page 1: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Regulation

Susan King

Extension Specialist

University of Delaware

Page 2: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Regulation

• Pesticide Laws

• Pesticide Registration

FQPA

Page 3: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Laws

• Federal Insecticide, Fungicide, Rodenticide Act – FIFRA

• Food Quality Protection Act – FQPA

Page 4: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Law

FIFRA• General Use Pesticides– Anyone may use

Page 5: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide LawFIFRA• General Use Pesticides– Anyone may use

• Restricted Use Pesticides– Certified Licensed Applicators

Page 6: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide LawFIFRA

EPA determines how pesticides are

Registered

Page 7: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide LawFIFRA

EPA determines how pesticides are

Sold Disposed of

Stored Handled

Transported Applied

Page 8: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests:

• Toxicology–Single dose

Page 9: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests: • Toxicology

–Lifetime exposure•Reproduction

•Mutations

•Cancer

Page 10: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests:

• Environmental fate–Breakdown in soil, water

Page 11: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests:• Environmental fate

–Movement•Runoff

•Leaching

•Drift

Page 12: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests:

• Ecological effects–Birds

–Fish

–Non-target plants

Page 13: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Tests:

• Residue Analysis

Page 14: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Residue Analysis:Pesticide applied according to

proposed label rates & procedures.

Then pesticide residues on crops are measured.

Page 15: Pesticide Regulation Susan King Extension Specialist University of Delaware.

How much residue is safe?

Page 16: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Tolerances

The amount of pesticide residue that will be legally allowed on food.

Page 17: Pesticide Regulation Susan King Extension Specialist University of Delaware.

300 ppm =No Effect Level

Page 18: Pesticide Regulation Susan King Extension Specialist University of Delaware.

300 ppm =No Effect Level

10 X, animal test

30 ppm

Page 19: Pesticide Regulation Susan King Extension Specialist University of Delaware.

300 ppm =No Effect Level

10 X, animal test

3 ppm

30 ppm

10X, human variability

Page 20: Pesticide Regulation Susan King Extension Specialist University of Delaware.

300 ppm =No Effect Level

10 X, animal test

3 ppm

0.3 ppm

30 ppm

10x, kids

10X, human variability

Page 21: Pesticide Regulation Susan King Extension Specialist University of Delaware.

0.3 ppm spread over 5 crops = Tolerance

Average 0.06 ppm each

Page 22: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pesticide Registration

Residue Testing Tolerance Setting

If residue < tolerance,

Pesticide registered

Page 23: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Safety Nets

• Never eat all crops in one day!

• Every day!

• For 70 years!

Page 24: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Safety Nets

• Never eat all crops in one day!

• Every day!

• For 70 years!

• Max rate not used!

• To all fields!

• To all parts of field!

Page 25: Pesticide Regulation Susan King Extension Specialist University of Delaware.
Page 26: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Explain pesticide registration to your neighbor.

Page 27: Pesticide Regulation Susan King Extension Specialist University of Delaware.

FQPA --

The Food Quality Protection Actof 1996

FQPA

Page 28: Pesticide Regulation Susan King Extension Specialist University of Delaware.

“Reasonable certainty that no harm will result

from aggregate pesticide exposure”

FQPA

Page 29: Pesticide Regulation Susan King Extension Specialist University of Delaware.

The Risk Cup

EPA has compared setting tolerances to filling a “Risk Cup”

Page 30: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Exposure that you could receive every day.

For 70 years. With no significant risk of long term, health effects.

The Risk Cup

Page 31: Pesticide Regulation Susan King Extension Specialist University of Delaware.

EPA must lump compounds with a common mechanism of toxicity

Page 32: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Common Mode of Action

39OP’s

mal

athi

onGuthion

Lorsban

Page 33: Pesticide Regulation Susan King Extension Specialist University of Delaware.

0.3 ppm OP spread over 5 crops =

Tolerance

Average 0.06 ppm OP each

Page 34: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Pets

Food

Home

Garden Water

EPA must consider aggregate exposure

Page 35: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Aggregate Exposure

Chlorpyrifos (Dursban, Lorsban)

Page 36: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Dietary/ Non-Dietary Exposure

&

Common Mechanism of Toxicity

Page 37: Pesticide Regulation Susan King Extension Specialist University of Delaware.

If the risk cup gets full, manufacturers could

reduce risk…

Page 38: Pesticide Regulation Susan King Extension Specialist University of Delaware.

By eliminating uses…

… Especially minor uses!

Page 39: Pesticide Regulation Susan King Extension Specialist University of Delaware.

FQPA HITS

•Methyl parathion•Azinphos methyl•Chlorphyrifos•Bendiocarb• Ethyl parathion

Page 40: Pesticide Regulation Susan King Extension Specialist University of Delaware.

Changes in pesticide labels to reduce risk?

•Reduce number of sprays•Reduce application rate•Change formulation

Page 41: Pesticide Regulation Susan King Extension Specialist University of Delaware.

• Procedure for setting tolerances• Common mode of action• Aggregate exposure

Summary

Page 42: Pesticide Regulation Susan King Extension Specialist University of Delaware.

• Procedure for setting tolerances• Common mode of action• Aggregate exposure

• Manufacturers need to reduce risk

Summary

Page 43: Pesticide Regulation Susan King Extension Specialist University of Delaware.

• Procedure for setting tolerances• Common mode of action• Aggregate exposure

• Manufacturers need to reduce risk• EPA needs “Real Life” data

Summary