Cheat sheet

Ontario Structural Exterminator Cheat Sheet

Practice Questions

Quick Facts

Exam
Structural category module
Questions
50 multiple choice
Time
1.5 hours, open book
Pass mark
75% on both parts
Core exam
50 questions, 1 hour
Certifier
OPT&C Guelph Ridgetown
Licence
MECP, five years, $90
Certification fee
CAD $214, core plus module
Rewrite fee
CAD $82
Apply by
Within 12 months of passing
Results
Within 10 working days
Domain weights
Not published

Sign Letters A To G

A fumigation, B structural, C to F land, G storage

A equals fumigationB equals structuralC to F equal landG equals storage

Core vs Module Exam

Core Manual exam

  • 50 questions, one hour
  • Closed book
  • Applies to all classes

Category module exam

  • 50 questions, 1.5 hours
  • Open book
  • Structural content only

Both need 75% to certify

Which Licence Class

  1. Cockroaches inside a buildingStructural class(Core plus module)
  2. Termites in a foundationTermite class(Structural excludes termiticides)
  3. Aphids inside a greenhouseGreenhouse/Interior Plant class(Pests of plants)
  4. Fumigant gas in buildingFumigation General class(Structural excludes gases)
  5. Weeds on a lawnLandscape class(Land, not structural)
  6. Wasps stinging near doorStructural class(Section 71 (1))
  7. Rats at a landfillStructural class(Waste disposal site)
  8. Running a pest businessOperator licence too(Renew every December)

Exam Format Fast Facts

Core exam
50 questions, closed book
Core time
One hour
Module exam
50 questions, open bookStructural
Module time
One and a half hours
Pass mark
75% on each part
Question type
Multiple choice only
Results
Within 10 working days
Rewrites
Two more within 12 months
Attempt limit
Two per six month period
After three fails
Reapply one year after first
Extra category
Extra module within 12 months
Reschedule
Once free, 48 hours notice

Structural Class Excludes Four

Gases, chloropicrin, termiticides, herbicides

Class B fumigant gasesChloropicrinTermiticidesHerbicides

Structural vs Termite Class

Structural class

  • Most structural pests
  • No termiticides or herbicides
  • Not pests of plants

Termite class

  • All termiticides allowed
  • No fumigant gases, chloropicrin
  • Termite control only

Termites need the Termite class

Structural Licence Classes

Structural
Most structural pests, not plants
Termite
Termiticides for termite control
Greenhouse/Interior Plant
Plant pests inside structures
Fumigation General
Fumigant gases, any fumigation
Fumigation Commodity
Enclosed commodity fumigation
Fumigation Soil
Soil fumigation, no burrows
Fumigation Vault
Methyl bromide, ethylene oxide
Land classes
Landscape, Forestry, Agriculture, Aerial
Water classes
Aquatic Vegetation, Fish/Mollusc, Mosquito
Operator licence
Business licence, expires December 31
Trainee
No approved course yet
Technician
Approved course within 24 months

Technician vs Trainee

Technician

  • Approved course within 24 months
  • Practical training received
  • Weekly supervisor site visit

Trainee

  • No approved course yet
  • Direct supervision always
  • Supervisor present on site

One exterminator supervises three maximum

Structural Class Scope Limits

Allowed work
Any structural extermination
Not allowed
Pests of plants
Fumigant gases
Excluded from Structural classClass B
Chloropicrin
Excluded from Structural class
Termiticides
Termite class only
Herbicides
Excluded from Structural class
Plant pests
Greenhouse/Interior Plant class
Farm animal pests
Allowed under section 71 (1)
Waste site pests
Mammals, birds, arthropods allowed
Biting or stinging pests
Allowed outdoors near structures
Outdoor arthropod signs
Required beyond one metre
Small outdoor area
Under one square metre exempt
Deemed land extermination
Plants harming structural integrity

Warning Signs A To G

Sign A
Warning, fumigation
Sign B
Warning, structural extermination
Sign C
Notice, residential land extermination
Sign D
Warning, residential land extermination
Sign E
Notice, non-residential land extermination
Sign F
Warning, non-residential land extermination
Sign G
Warning, storage
Sign B placement
Outside all doors, before treatment
Sign G placement
Storage area and all entrances
Vehicle Sign G
Unsupervised pesticides in vehicle
Permitted wording swap
Chemical storage for pesticide storage
Emergency numbers
Fire, hospital, poison control

Records, Storage And Notices

Rodenticide record
Each placement location, during job
Record retention
At least two years
Record triggers
Strychnine, zinc phosphide, 4-aminopyridine
Carcass disposal
Daily, away from humans
Job completion
Remove product from every location
Fire department notice
Annual written storage notice
Overnight vehicle storage
Notify local fire department
Vehicle security
Locked compartment or restricted place
Class A, B, C storage
Ventilated, secured, no floor drain
Emergency gear
Respirator and clothing ready
Renewal window
90 days before expiry
Supervision limit
Three technicians or trainees
Training record
Kept two years after leaving

German vs American Cockroach

German cockroach

  • 13 to 16 millimetres
  • Two dark pronotal stripes
  • Carries ootheca to hatching

American cockroach

  • Largest structural cockroach
  • Pale margin on pronotum
  • Drops ootheca early

Stripes small, pale margin large

Pest To Treatment Picker

  1. German cockroach in kitchenGel bait plus sanitation(Avoid repellent sprays)
  2. Oriental cockroach in basementFix moisture, then treat(Drains and sumps)
  3. Pharaoh ants buddingSlow acting bait only(Repellents split colonies)
  4. Carpenter ants in woodTreat nest, fix moisture(Coarse shavings present)
  5. Subterranean termites foundRefer Termite class licensee(Termiticides excluded)
  6. Bed bugs confirmedRepeat harbourage treatment(Eggs survive contact sprays)
  7. Mice inside buildingMany close trap placements(Seal 6 millimetre gaps)
  8. Norway rats outdoorsPrebait, then treat(Neophobia delays feeding)
  9. Cluster flies in atticExclusion and vacuuming(No indoor breeding)
  10. Indianmeal moth in storeFind and discard source(Pheromone traps locate)
  11. Carpet beetles in rugVacuum, launder, discard(Shed skins present)
  12. Powderpost beetles in oakTreat or replace sapwood(Round exit holes)

Cockroaches And Bed Bugs

German cockroach
Two dark pronotal stripes
German ootheca
Carried until nearly hatching
German habitat
Warm humid kitchens, washrooms
Oriental cockroach
Dark, sluggish, poor climber
Oriental habitat
Drains, sumps, damp basements
American cockroach
Largest, pale pronotal margin
Brown-banded cockroach
Banded wings, warm dry rooms
Cockroach entry
Cartons, equipment, used furniture
Bed bug moult
Blood meal before each moult
Bed bug stages
Five nymphal instars
Bed bug eggs
Cemented in cracks, survive sprays
Bed bug evidence
Faecal spotting, cast skins
Bites alone
Never confirm bed bugs

Bed Bug vs Bat Bug

Bed bug

  • Short pronotal fringe hairs
  • Feeds on sleeping people
  • Harbours in bed seams

Bat bug

  • Long pronotal fringe hairs
  • Feeds mainly on bats
  • Comes from roosts, voids

Exclude bats before treating bugs

Ants And Wood Destroyers

Carpenter ant frass
Coarse shavings, insect parts
Carpenter ant galleries
Smooth, clean, no soil
Subterranean termite
Reticulitermes flavipes in Ontario
Termite galleries
Packed with soil, faeces
Shelter tubes
Mud tubes across foundations
Termite moisture
Constant soil moisture required
Pharaoh ant baiting
Slow bait, never repellent
Colony budding
Repellents split and spread
Swarmer antennae
Termite bead-like, ant elbowed
Swarmer waist
Termite broad, ant pinched
Swarmer wings
Termite four equal, ant unequal
Lyctid powderpost beetle
Round holes, flour-like frass
Lyctid hosts
Large-pored hardwoods, not softwood

Carpenter Ant vs Termite

Carpenter ant

  • Coarse shavings pushed out
  • Smooth clean galleries
  • Elbowed antennae, pinched waist

Subterranean termite

  • Soil packed galleries
  • Mud shelter tubes
  • Bead antennae, broad waist

Shavings ant, mud tubes termite

Rodents And Exclusion Gaps

House mouse feeding
Many small nibbles, curious
Mouse placements
Many stations, closely spaced
Norway rat
Blunt muzzle, short tail
Norway rat nesting
Burrows at ground level
Roof rat
Pointed muzzle, long tail
Roof rat nesting
High in upper structures
Rat neophobia
Avoids new objects for days
Prebaiting
Untreated bait establishes feeding
Mouse gap
About 6 millimetres
Rat gap
About 12 millimetres
Exclusion materials
Hardware cloth, sheet metal, mortar
Bait station rules
Locked, anchored, labelled, inspected
Rodent signs
Droppings, runways, rub marks

Fabric And Stored Product Pests

Carpet beetle larvae
Bristly, shed skins, grazed damage
Clothes moth larvae
Silken tubes, dark folds
Fabric pest control
Vacuum, launder or discard
Indianmeal moth
Webbing in stored food
Pheromone traps
Catch males, locate source
Stored product fix
Find and discard infested product
Cluster fly larvae
Parasitize earthworms outdoors
Cluster fly control
Exclusion and vacuuming
Cluster fly timing
Treat exterior late summer
Silverfish
Damp, starchy paper, humidity
Firebrat
Prefers hot dry areas
Drain fly
Organic film in drains

Signal Word Shapes

Triangle caution, diamond warning, octagon danger

Three sides lowFour sides moderateEight sides high

Class B vs Class D

Class B restricted

  • Licensed exterminators, certified farmers
  • Extra label restrictions
  • Stricter storage rules

Class D domestic

  • Sold to the public
  • Home use around house
  • Lighter storage rules

Class letter drives who uses

Label Parts To Find

Product name
Brand and chemical name
Registration number
Pest Control Products Act
Guarantee
Active ingredient concentration
Class designation
Domestic, commercial, restricted, manufacturing
Net contents
Metric units on panel
Directions for use
Sites, pests, rates, methods
Precautions
Hazards and handling limits
First aid
Bring label to clinician
Toxicological information
Guidance for treating physician
Re-entry period
Wait time before entry
Storage and disposal
Container and product handling
Label is law
Off-label use is offence

Signal Words And Symbols

CAUTION
Low hazard signal word
WARNING
Moderate hazard signal word
DANGER
High hazard signal word
Triangle
Three sides, low hazard
Diamond
Four sides, moderate hazard
Octagon
Eight sides, high hazard
Poison pictogram
Oral or inhalation hazard
Corrosive pictogram
Burns skin and eyes
Flammable pictogram
Low flash point
Explosive pictogram
Pressurized container hazard
Multiple hazards
All symbols, one signal word
Read the label
Required statement before use

Ontario Pesticide Classes

Class A
Manufacturing use only
Class B
Restricted, licensed users
Class C
Commercial, licensed users
Class D
Domestic, general public
Class E
Treated corn, soybean seed
Class B storage
Pesticide-only storage area
Class A notice
Fire department notice required
Sale rule
Vendor licence to sell
Federal registration
Registered before Ontario sale
Cosmetic ban
Applies to land exterminations
Use rule
Label plus regulation govern
Container rule
Keep product in original container

Formulation Codes

EC
Emulsifiable concentrate, mixes milky
WP
Wettable powder, needs agitation
SC
Suspension concentrate, flowable
D
Dust, dry voids only
G
Granule, ready to apply
Gel bait
Small spots near harbourage
Bait station
Enclosed, tamper resistant device
Aerosol
Pressurized, crack and crevice
ULV concentrate
Fine droplets, space treatment
IGR
Insect growth regulator
Desiccant dust
Silica or diatomaceous earth
Microencapsulated
Slow release residual capsules

Dilution Formula

Want divided by have, times batch size

Want is target strengthHave is concentrate strengthBatch is finished volume

Bait vs Residual Spray

Bait

  • Pest carries dose home
  • Reaches hidden colonies
  • Ruined by sprays, cleaners

Residual spray

  • Deposit kills on contact
  • Treats surfaces and cracks
  • Can scatter ant colonies

Never spray over bait spots

Formulation Picker

  1. Dry wall voidDust(Barely visible film)
  2. Cockroach harbourage edgeGel bait(Away from sprays)
  3. Baseboard perimeter bandResidual liquid, fan nozzle(Even coverage)
  4. Crack or expansion jointAerosol or pin stream(No exposed deposit)
  5. Flying insects in airspaceULV space treatment(Vacate and ventilate)
  6. Rodents near public areasLocked tamper resistant station(Anchor and label)
  7. Porous surface, quick breakdownMicroencapsulated or wettable powder(Longer residual)
  8. Long term population controlInsect growth regulator(Stops development)

Equipment And Nozzle Patterns

Compressed air sprayer
Hand pumped, low volume
Duster
Puffs dust into voids
Bait gun
Places gel spots precisely
ULV fogger
Fills airspace, little residual
Fan nozzle
Even band along baseboard
Pin stream nozzle
Injects cracks and voids
Cone nozzle
Broad spot or surface
Output creep cause
Worn, enlarged nozzle orifice
Calibration check
Time discharge into container
Tank fill order
Water, concentrate, water, agitate
Backflow prevention
Air gap above liquid
Rinse routine
Triple rinse into tank

Crack And Crevice vs Spot

Crack and crevice

  • Product into voids only
  • No exposed surface deposit
  • Pin stream or aerosol

Spot treatment

  • Limited exposed surface area
  • Visible deposit allowed
  • Fan or cone nozzle

Label term decides the method

Application Method Terms

Crack and crevice
Into voids, no exposed deposit
Spot treatment
Limited surface area only
General surface
Broad exposed surface treatment
Space treatment
Airborne droplets, dosed by volume
Void treatment
Dust behind walls, fixtures
Perimeter treatment
Band around building base
Barrier application
Continuous treated zone
Dust film
Barely visible, never piled
Bait placement
Away from sprays, cleaners
Baseboard band
Fan nozzle, even coverage
Re-entry wait
Ventilation period on label
Non-target protection
Cover food, remove pets

Calculation Formulas

Concentrate needed
Want divided by have, times volume
Active ingredient
Concentration times container volume
Ratio 1:100
10 millilitres per litre
Room volume
Length times width times height
Floor area
Length times width
Area dose
Area divided by 100, times rate
Sprayer output
Volume collected divided by time
1 ppm
One milligram per litre
Percent to grams
1% equals 10 grams per litre
Unit check
Convert all units first
Litres to millilitres
Multiply by 1,000
Overmixing risk
Disposal problem, label breach

Worked Calculations

10 L at 0.5%
250 mL of 20% concentrate
5 L at 240 g/L
1,200 grams active ingredient
Room 10 by 6 by 3
180 cubic metres
Floor 8 by 5 metres
40 square metres
Rate 5 L per 100 m2
2 litres over 40 m2
1 L in 2 minutes
0.5 litres per minute
1:100 in 5 L
50 millilitres concentrate
2 mg/L in water
Equals 2 parts per million
1 mL per cubic metre
180 mL treats 180 m3
20% down to 1%
One part into twenty

IPM Step Order

Identify, monitor, threshold, act, evaluate

Identify before any productMonitor with trapsAct past thresholdEvaluate and adjust

Acute vs Chronic Toxicity

Acute

  • Single or short exposure
  • Effects appear quickly
  • Measured by LD50

Chronic

  • Repeated low exposures
  • Effects appear later
  • Found in long studies

Lower LD50 means more toxic

Spill Or Exposure Response

  1. Pesticide reaches a drainCall Spills Action Centre(1-800-268-6060)
  2. Small contained spillControl, contain, clean up(Absorbent, then dispose)
  3. Concentrate splashes skinRemove clothing, wash thoroughly(Label states duration)
  4. Product enters the eyeRinse 15 minutes(Then seek care)
  5. Product is swallowedFollow label first aid(Bring the label)
  6. Breathing difficulty after foggingMove to fresh air(Seek medical attention)
  7. Pesticide stolen from vanNotify Spills Action Centre(As soon as practicable)
  8. Fire at storage areaPosted emergency numbers(Fire department notified annually)

IPM Step Order

Step 1
Inspect and identify pest
Step 2
Find food, water, harbourage
Step 3
Monitor with traps
Step 4
Set action threshold
Step 5
Choose non-chemical controls first
Step 6
Apply targeted pesticide if needed
Step 7
Evaluate results, adjust plan
Sanitation
Removes competing food, boosts baits
Exclusion
Seal gaps, fit door sweeps
Habitat fix
Correct moisture and drain defects
Monitoring value
Trap counts show real trend
Identification first
Wrong identification causes callbacks

Exposure Route Order

Dermal first, then inhalation, oral, eye

Hands and forearms leadMixing is riskiestWash before eating

PPE And Exposure Routes

Dermal
Largest applicator exposure route
Highest risk task
Mixing and loading concentrate
Hands and forearms
Most contaminated body areas
Inhalation
Confined spaces and fogging
Oral
Eating with contaminated hands
Eye
Splash during pouring, mixing
PPE source
Label states the minimum
More is allowed
Never less than label
Gloves
Unlined nitrile or neoprene
Respirator
Required in confined spaces
Wash rule
Wash before eating or smoking
Clothing
Change and launder separately

Spill And Emergency Steps

Spills Action Centre
1-800-268-6060, staffed always
Report timing
Immediately after the discharge
Also notify
Municipality and affected persons
Theft or loss
Report as soon as practicable
Spill order
Control, contain, clean up
Keep out of
Drains, sewers, watercourses
Absorbent
Sand, vermiculite, absorbent pads
Skin splash
Remove clothing, wash thoroughly
Eye splash
Rinse 15 minutes, seek care
Bring the label
Guides the treating clinician
Fire emergency
Posted numbers at storage
Never decant
Original labelled container only

Common Traps

Grade 10 Is Not Required

Old guides print Grade 10 Regulation requires age sixteen only

Licence Runs Five Years

Exterminator licence lasts five years Operator licence expires December 31

Structural Cannot Treat Termites

Structural class excludes termiticides Termite class treats termites

Rodenticide Record Is Two Years

Placement record kept two years No general five year rule

Certification Is Not A Licence

OPT&C issues a certification letter MECP issues the exterminator licence

Bites Never Confirm Bed Bugs

Skin reactions vary widely Faecal spotting and skins confirm

Only The Module Is Open

Module exam is open book Core exam is closed book

Fogging Leaves No Residual

ULV kills exposed insects only Residual product lasts longer

Sign G Is Not Sign B

Sign G marks pesticide storage Sign B marks structural extermination

Cosmetic Ban Is Land Only

Ban targets cosmetic land exterminations Structural pest work is separate

Last Minute

  1. 1.Module exam: 50 questions, open book
  2. 2.Core exam: 50 questions, closed book
  3. 3.Pass mark is 75% on both
  4. 4.Exterminator licence lasts five years
  5. 5.Structural excludes gases, chloropicrin, termiticides, herbicides
  6. 6.Termites need the Termite class
  7. 7.Sign B structural, Sign G storage
  8. 8.Rodenticide placement records kept two years
  9. 9.Spills Action Centre: 1-800-268-6060
  10. 10.Want divided by have, times batch
  11. 11.1 milligram per litre equals ppm
  12. 12.Mice pass 6 millimetres, rats 12
  13. 13.Termite mud tubes, ant shavings
  14. 14.Dermal exposure leads, so wash hands
  15. 15.Label plus regulation govern every use
  16. 16.Apply to MECP within 12 months
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