DC Pesticide Applicator study materials
DC Pesticide Applicator study resources

DC Pesticide Applicator case studies

DC Pesticide Applicator · Put your knowledge to work in context.

The District of Columbia Pesticide Applicator Certification is a credential administered by the DC Department of Energy & Environment (DOEE), the agency that houses the District's environmental programs, including its Toxic Substances work. It is intended for people who apply pesticides in the District of Columbia, whether in commercial, institutional, or government settings, and who need to demonstrate they can handle these products lawfully and safely. The DC Pesticide Applicator case studies are 5 cases and about 2,576 words.

1

Greenhouse Rose Fungicide Tank-Mix Conflict

A commercial applicator is called to a 2,400-square-foot glass greenhouse in Ward 5 where cut roses show white powdery patches on upper leaves and distorted new growth. The house is closed, air temperature is 86°F, and relative humidity is 70%.

485 words, about 2 min
2

Turf Application Near a Storm Drain and Playground

A certified applicator is contracted to treat 1.2 acres of common-area turf at a 40-unit apartment property in Ward 7 for chinch bug damage. The lawn slopes toward a storm drain 18 feet from the treated edge; the drain discharges to a tributary of the Anacostia River.

473 words, about 2 min
3

Cockroach Fogging in an Occupied Apartment

A pest-control operator is asked to treat a 12-unit apartment building in Ward 4 for German cockroaches. Inspections find live roaches and frass in kitchens and bathrooms of six units, especially behind refrigerators and inside cabinet hinges.

439 words, about 2 min
4

Retention Pond Algaecide and Storm Sewer Discharge

A lake-management contractor is asked to treat a 0.4-acre ornamental retention pond in Ward 8 that has a visible algal bloom and emergent weeds along one bank. The pond averages 6 feet deep, has an overflow structure that discharges to the municipal storm sewer during heavy rain, and contains koi and goldfish.

590 words, about 3 min
5

Leaking Herbicide Drum Near a Storm Drain

A small pesticide business stores a 55-gallon drum of a 2,4-D amine herbicide and a 30-gallon drum of an insecticide concentrate in a corrugated-metal shed behind its Ward 5 shop. The shed is 40 feet from a storm drain and has a gravel floor; the nearest sanitary sewer is 150 feet away.

589 words, about 3 min