Illinois Pesticide Applicator
Comprehensive Exam with Accurate
Solutions
Economic Injury Level - ✔✔The breakeven point at which the cost of pest control equals the
revenue loss caused by the pest
aesthetic injury level - ✔✔The number of pests that cause enough damage to the appearance
of a plant to warrant the cost of control.
scouting - ✔✔The owner, grower, maintenance technician, or a hired individual who regularly
monitors pest populations and plant or crop conditions.
Integrated Pest Management (IPM) - ✔✔An approach to plant protection that is recommended
for efficient pest control with minimal environmental impact
cultural control - ✔✔improves crop health in order to make the crop better able to compete
against pests.
examples: mulches-to control weeds, smother crops-to control weeds growing in oats, grass or
ground cover, crop rotation,
selecting resistant plants, soil preparation
mechanical control - ✔✔physically eliminates the pest
-handpulling, hoeing, rotary hoeing, cultivating, mowing and aquatic weed harvesting, pruning
biological control - ✔✔uses living organisms to reduce pest populations to economically
acceptable levels
-predators, parasites, pest diseases
,Preventive control - ✔✔helps prevent the entry and spread of pests
-quarantines, inspections, certified seed, cleaning equipment, controlling before seed
production, nutrient control
chemical control - ✔✔Use of pesticides or herbicides to manage an unwanted organism(s)
-herbicides, insecticides, fungicides, repellents, fumigants
pests - ✔✔insects and other animals, weeds, and diseases that may negatively impact a human
goal
Proleg - ✔✔False leg; any appendage that serves the purpose of a leg, as with the abdominal
"legs" of caterpillars and sawflies.
incomplete development/simple metamorphosis - ✔✔Insects with 3 life stages
-egg, nymph, adult
complete development - ✔✔Insects with 4 life stages
-egg, larva, pupa, adult
Auricles - ✔✔earlike extensions from the base of the leaf base blade around the shoot
rhizome - ✔✔creeping underground stem
stolon - ✔✔creeping aboveground stem
active ingredient - ✔✔part of the formulation that is effective against the targeted pest
, inert ingredient - ✔✔does not have a direct effect on the pest
formulation - ✔✔Saleable forms of a pesticide including active and inert ingredients
Soluble Powders (SP) - ✔✔mix with water and form a true solution
agitation - ✔✔violent stirring (referring to spray tank)
Wettable Powders (WP) - ✔✔among the most WIDELY used formulations. mixed with water
and form a SUSPENSION, they do not form "true" solutions
suspension - ✔✔A mixture in which particles can be seen and easily separated by settling or
filtration
Dry Flowables (DF)/Water dispersible granules (WDG) - ✔✔Similar to wettable powders except
the active ingredient is formulated into a microgranule instead of a powder
-safer to pour
Granules (G) - ✔✔applying an active ingredient to coarse particles such as clay, newspaper
pelets, ground walnut shells or ground corn cobs
Pellets (P,PS) - ✔✔Larger than granules
-uniform weight and shape
Dusts(D) - ✔✔Contain a low percentage of the active ingredient on a very fine, dry inert carrier
such as talc, chalk, or clay
Comprehensive Exam with Accurate
Solutions
Economic Injury Level - ✔✔The breakeven point at which the cost of pest control equals the
revenue loss caused by the pest
aesthetic injury level - ✔✔The number of pests that cause enough damage to the appearance
of a plant to warrant the cost of control.
scouting - ✔✔The owner, grower, maintenance technician, or a hired individual who regularly
monitors pest populations and plant or crop conditions.
Integrated Pest Management (IPM) - ✔✔An approach to plant protection that is recommended
for efficient pest control with minimal environmental impact
cultural control - ✔✔improves crop health in order to make the crop better able to compete
against pests.
examples: mulches-to control weeds, smother crops-to control weeds growing in oats, grass or
ground cover, crop rotation,
selecting resistant plants, soil preparation
mechanical control - ✔✔physically eliminates the pest
-handpulling, hoeing, rotary hoeing, cultivating, mowing and aquatic weed harvesting, pruning
biological control - ✔✔uses living organisms to reduce pest populations to economically
acceptable levels
-predators, parasites, pest diseases
,Preventive control - ✔✔helps prevent the entry and spread of pests
-quarantines, inspections, certified seed, cleaning equipment, controlling before seed
production, nutrient control
chemical control - ✔✔Use of pesticides or herbicides to manage an unwanted organism(s)
-herbicides, insecticides, fungicides, repellents, fumigants
pests - ✔✔insects and other animals, weeds, and diseases that may negatively impact a human
goal
Proleg - ✔✔False leg; any appendage that serves the purpose of a leg, as with the abdominal
"legs" of caterpillars and sawflies.
incomplete development/simple metamorphosis - ✔✔Insects with 3 life stages
-egg, nymph, adult
complete development - ✔✔Insects with 4 life stages
-egg, larva, pupa, adult
Auricles - ✔✔earlike extensions from the base of the leaf base blade around the shoot
rhizome - ✔✔creeping underground stem
stolon - ✔✔creeping aboveground stem
active ingredient - ✔✔part of the formulation that is effective against the targeted pest
, inert ingredient - ✔✔does not have a direct effect on the pest
formulation - ✔✔Saleable forms of a pesticide including active and inert ingredients
Soluble Powders (SP) - ✔✔mix with water and form a true solution
agitation - ✔✔violent stirring (referring to spray tank)
Wettable Powders (WP) - ✔✔among the most WIDELY used formulations. mixed with water
and form a SUSPENSION, they do not form "true" solutions
suspension - ✔✔A mixture in which particles can be seen and easily separated by settling or
filtration
Dry Flowables (DF)/Water dispersible granules (WDG) - ✔✔Similar to wettable powders except
the active ingredient is formulated into a microgranule instead of a powder
-safer to pour
Granules (G) - ✔✔applying an active ingredient to coarse particles such as clay, newspaper
pelets, ground walnut shells or ground corn cobs
Pellets (P,PS) - ✔✔Larger than granules
-uniform weight and shape
Dusts(D) - ✔✔Contain a low percentage of the active ingredient on a very fine, dry inert carrier
such as talc, chalk, or clay
