OHIO STATE UNIVERSITY EXTENSION

Ohio Pesticide Applicator Training

Unit 4

Pesticides in the Environment

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OHIO STATE UNIVERSITY EXTENSION

Explain the Meaning of the Word “ENVIRONMENT”

EVERYTHING AROUND USNATURAL ELEMENTS

MAN MADE COMPONENTS

INDOORS AND OUTDOORS

AIRSOILWATERPLANTSANIMALSHOUSESFACTORIES

OFFICE BUILDINGS

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OHIO STATE UNIVERSITY EXTENSION

Factors to Consider When You Release Pesticides into the EnvironmentSENSITIVE AREAS IN THE ENVIRONMENT *AT THE USE SITE *NEAR THE USE SITE

CONDITIONS IN THE ENVIRONMENT THAT COULD CAUSE PESTICIDE TO MOVE OFFSITE

CHANGES IN METHODS OR USAGE TO REDUCE THE RISKS OF CONTAMINATION

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OHIO STATE UNIVERSITY EXTENSION

Point Source vs. Non-Point Source

• POINT SOURCE ENVIRONMENTAL CONTAMINATION CAN BE TRACED BACK TO ITS ORIGINAL SITE.

• NON-POINT SOURCE ENVIRONMENTAL CONTAMINATION COMES FROM A WIDER AREA.

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OHIO STATE UNIVERSITY EXTENSION

Sensitive Areas

IN OR NEAR SURFACE WATER

SCHOOLS,PLAYGROUNDS,HOSPITAL

HABITATS OF ENDANGERED SPECIES

APIARIES,WILDLIFE REFUGE,PARKS

ORNAMENTAL GARDENS

WHERE FOOD OR FEED IS

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OHIO STATE UNIVERSITY EXTENSION

Pesticides Move Off the Release Site in Several Ways

AIR, ie. WIND OR VENTILATION SYSTEMS.

WATER, ie. RUNOFF AND LEACHING

ON OR IN OBJECTS, ie. PLANTS, ANIMALS AND HUMANS MOVED OFFSITE

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OHIO STATE UNIVERSITY EXTENSION

Drift - Pesticide particles, dust, spray, droplets, and vapors that are carried offsite in the air.

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OHIO STATE UNIVERSITY EXTENSION

Factors That Influence Air Movement of Pesticides

Lightweight particles

Fine nozzles

High pressure

High wind speeds

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OHIO STATE UNIVERSITY EXTENSION

Factors That Influence Water Movement of Pesticides

Drift, leaching, and runoff

Spills, leaks, and back-siphoning

Improper disposal of rinsates and containers

Too much rainwater or irrigation

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OHIO STATE UNIVERSITY EXTENSION

Factors That Influence Movement of Pesticides On or In Other Objects

SHOES AND CLOTHING

FOOD AND FEED

PRODUCTS THAT EXCEED LEGAL TOLERANCES

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OHIO STATE UNIVERSITY EXTENSION

How Pesticides Could Harm Nontarget Plants and Animals

Direct contact of pesticide on the non-target plant or animal.

Poor timing

Residue

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OHIO STATE UNIVERSITY EXTENSION

References

Applying Pesticides Correctly

OSU BULLETIN 825

Ohio State University Extension