Ontario Pesticide Structural Exam flashcards

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

Ontario Pesticide Classes

Ontario classifies pesticides from Class 1 to Class 9; Class 1 products are prohibited, Classes 2 to 5 are restricted and require licensing, and Class 6 products are domestic.

Exterminator Licence

A licence issued to an individual under Ontario's Pesticides Act authorizing structural extermination work; it must be carried while working and is renewed each year.

Pesticide Operator Licence

A licence issued to a business that offers extermination services; the business must employ licensed exterminators and comply with Ontario Regulation 63/09.

Spills Action Centre

Ontario's 24-hour spill reporting line operated by the environment ministry, reached at 1-800-268-6060, where reportable pesticide spills must be phoned in immediately.

Label as Legal Document

The approved label defines the only legal use pattern for a pesticide; applying the product in a manner inconsistent with label directions is an offence.

PCP Registration Number

The number assigned by Health Canada's Pest Management Regulatory Agency when a product and its label are registered for sale and use in Canada.

Signal Word Hazard Ranking

Danger, usually with a poison symbol, marks the most acutely toxic products; Warning indicates intermediate hazard; Caution marks products of lower acute toxicity.

SDS Section Eight

Section 8 of the 16-section Safety Data Sheet lists exposure controls and personal protective equipment, including exposure limits, engineering controls and required respiratory protection.

Action Threshold

The pest population level at which treatment is justified because the damage or health risk from the pest exceeds the cost of control.

IPM Monitoring

Systematic inspection, trapping and record keeping used to detect pests and follow population trends, supplying the data needed to decide whether a threshold has been reached.

Sanitation as First Tactic

Removing food, water and harbourage deprives pests of the resources they need, lowers the site's carrying capacity and is the least-risk tactic in any integrated program.

Resistance Rotation

Alternating products from different mode-of-action groups, identified by IRAC or FRAC numbers, reduces the selection pressure that produces resistant pest populations.

German Cockroach Identification

Adults are 13 to 16 millimetres, tan to brown, with two dark parallel stripes on the pronotum; nymphs carry a pale stripe and prefer warm, humid harbourage.

Bed Bug Appearance

Adults are four to six millimetres, oval and flattened, rusty brown, with three pairs of legs and four-segment antennae; they hide in seams and feed at night.

Subterranean Termite Evidence

Mud shelter tubes on foundations, wood hollowed along the grain with soil-filled galleries, and swarmers with four equal-sized wings indicate subterranean termite activity.

House Mouse Signs

Pointed droppings three to six millimetres long, gnaw marks, rub marks, tracks and a musky odour; adults weigh under 30 grams and range only a few metres.

Crack and Crevice Treatment

Low-pressure application of pesticide directly into structural gaps where pests harbour, minimizing surface residue, airborne drift and occupant exposure.

Cockroach Gel Bait Placement

Many small placements of bait adjacent to harbourage and along edges; contact insecticides must not be sprayed over baits because repellency stops feeding.

Ant Baiting Principle

Slow-acting bait is carried by foragers to the colony, where it is shared and kills the queen and brood; repellent sprays on trails disrupt this transfer.

Anticoagulant Rodenticide Baiting

Baits are placed in tamper-resistant, secured stations along runways and checked regularly; carcasses are searched for and removed to limit odour and secondary poisoning.

LD50 Meaning

The single dose, in milligrams per kilogram of body weight, that kills half the test animals; a lower LD50 means a more acutely toxic product.

Cholinesterase Inhibitor Symptoms

Organophosphate and carbamate poisoning causes salivation, lacrimation, urination, diarrhea, vomiting, pinpoint pupils, muscle twitching and weakness; it is a medical emergency.

Vitamin K1 Antidote

Anticoagulant rodenticides block vitamin K recycling and cause internal bleeding; vitamin K1 is the specific antidote given after significant exposure.

Dermal Protection PPE

Chemical-resistant gloves, boots and coveralls specified on the label prevent skin absorption, which is the most common exposure route for structural pesticide applicators.

Dose Calculation Formula

Milligrams of active ingredient received equals the dose in mg/kg multiplied by body weight in kilograms; comparing it with the LD50 helps estimate risk.

Sprayer Calibration

Measuring the volume a sprayer delivers per unit time or area so the label rate is applied uniformly; recalibrate after changing nozzles, pressure or product.

Nozzle Wear Effect

Worn tips pass more liquid and produce coarser, uneven patterns; nozzles are replaced when measured output differs about ten percent from the rated flow.

ULV Droplet Size

Ultra-low-volume space treatment produces droplets of roughly five to fifty micrometres, small enough to stay airborne and contact flying insects.

Spill Containment Steps

Protect people, stop the source if safe, dike or absorb to keep product out of drains and waterways, containerize and label the waste, then report.

Triple Rinse Containers

Empty containers are rinsed three times with a small amount of water, the rinsate is added to the spray tank, then containers are punctured before disposal.

Back-Siphon Prevention

Keeping the fill hose above the tank's water level, or using an air gap, prevents pesticide from flowing back into the drinking water supply.

Pyrethroid Aquatic Toxicity

Synthetic pyrethroids are extremely toxic to fish and aquatic invertebrates at very low concentrations, so applications near water and runoff pathways are avoided.