CO Pesticide Applicator study materials
CO Pesticide Applicator study resources

CO Pesticide Applicator flashcards

CO Pesticide Applicator · Build recall with a focused review session.

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

FIFRA
Federal law that requires EPA registration of pesticides before sale or use and sets labeling standards; Colorado enforces pesticide law through the state pesticide act.
Section 2(ee)
FIFRA provision that allows a pesticide to be used against a pest not listed on the label if the site is listed and the use meets label restrictions.
Restricted-use pesticide
A pesticide that may be sold and used only by certified applicators or by noncertified persons working under a certified applicator's direct supervision because of its hazards.
Colorado record retention
Colorado commercial applicators must keep pesticide application records for three years; federal rules require restricted-use pesticide records be kept two years.
DANGER signal word
Highest acute toxicity category on a pesticide label; DANGER with skull and crossbones means highly toxic, while DANGER alone often indicates corrosive skin or eye effects.
EPA registration number
Code on a pesticide label showing the product is registered; it usually appears as a company number followed by a product number, such as 12345-67.
Restricted entry interval
Label-stated time after a pesticide application during which entry is prohibited unless workers wear the label-specified protective equipment; it protects against exposure.
SDS Section 4
Safety Data Sheet section giving first-aid measures for inhalation, skin, eye, and ingestion exposure, including symptoms and immediate treatment steps.
Chemical-resistant gloves
Gloves made of nitrile, butyl, or neoprene that resist pesticide penetration; leather and cotton absorb liquids and are not suitable for handling concentrates.
Respirator fit test
Annual test that verifies a tight seal between a respirator and the wearer's face; a medical evaluation is required before fit testing and respirator use.
Heat stress warning
Dizziness, headache, nausea, weakness, and confusion can indicate heat illness and can resemble pesticide poisoning; stop work, cool the person, and seek help.
PPE decontamination
Wash reusable protective equipment with detergent and water, rinse, and dry it; keep contaminated clothing away from family laundry to prevent secondary exposure.
Economic threshold
Pest density at which the cost of treatment equals the expected crop loss; treating at or above this level prevents economic damage without unnecessary pesticide use.
IPM pyramid
A hierarchy that emphasizes prevention, cultural and mechanical controls, and biological control before chemical pesticides are used as a last resort.
Mode-of-action rotation
Alternating pesticide groups with different IRAC or FRAC codes to slow resistance; repeated use of one group selects pests that survive that mode of action.
Disease triangle
Plant disease requires a susceptible host, a virulent pathogen, and a favorable environment; breaking any one of these three factors can reduce disease.
Emulsifiable concentrate
Liquid formulation containing solvent and emulsifier that mixes with water to form an emulsion; it can injure sensitive foliage and may be flammable.
Compatibility jar test
Small test that mixes water and planned products in order in a clear jar to detect clumping, precipitate, separation, or heat before mixing a full tank.
Tank mixing order
Add water first, then dry formulations such as wettable powders, then liquid suspensions and emulsifiable concentrates, and adjuvants last unless the label states otherwise.
Surfactant adjuvant
A product that reduces spray surface tension and improves coverage or uptake; it is not a pesticide and does not control pests by itself.
GPA formula
Gallons per acre equals nozzle flow in gallons per minute times 5940, divided by speed in miles per hour times nozzle spacing in inches.
Nozzle replacement rule
Replace a spray nozzle when its flow is more than 10 percent above the new-nozzle rating; worn nozzles apply uneven rates and increase drift.
1/128 acre method
Backpack calibration method: spray a measured 1/128 acre area and collect output from one nozzle; ounces collected equal gallons per acre.
Pressure-flow relationship
Nozzle flow changes with the square root of pressure; doubling pressure increases flow about 1.41 times, so pressure changes must be calculated, not assumed linear.
Leaching risk factors
High water solubility, low soil adsorption, long half-life, and sandy soils increase the chance that a pesticide moves downward into groundwater.
Temperature inversion
Weather condition with cooler air near the ground and warmer air above; it traps small spray droplets and can cause severe drift.
Soil half-life
Time required for half of a pesticide in soil to degrade; a longer half-life means greater persistence, carryover to the next crop, and leaching potential.
Pollinator protection
Avoid applying pesticides during bloom and when bees forage, follow label bee warnings and buffers, and time applications for evening or night when possible.
Triple rinse
Fill a pesticide container one-quarter full with water, close and shake, then drain rinse water into the spray tank; repeat three times.
Spill response sequence
Protect people, stop the source, contain the spill, absorb the material, clean up, and report the release if it reaches a reportable quantity.
Pesticide storage rules
Store pesticides locked, ventilated, dry, and separate from food, feed, seed, and livestock; keep absorbent material and a spill kit nearby.
Poison Control number
The national telephone number 1-800-222-1222 provides 24-hour advice for pesticide exposure and poisoning emergencies anywhere in the United States.