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ILLINOIS AERIAL APPLICATION EXAM
QUESTIONS AND ANSWERS 2025
What is a pesticide - .....ANSWER ...✔✔ a substance
used for destroying insects or other organisms harmful to
cultivated plants or to animals.
Pesticides are made up of - .....ANSWER ...✔✔ Active
and inert ingredients
AI - .....ANSWER ...✔✔ Active ingredient - chemical
effective against pest
Inert ingredients - .....ANSWER ...✔✔ don't harm pest
but make the AI more effective
Herbicide formulation - .....ANSWER ...✔✔ may be
ready to use or may require dilution with carrier (oil or
liquid)
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60WDG - .....ANSWER ...✔✔ 60% AI water-
dispersible granule
4EC - .....ANSWER ...✔✔ 4 lbs ai per gallon of
emulsifiable concentrate
SP - .....ANSWER ...✔✔ Soluable powder - dry
formulation. Mixed with water. Dissolve readily and
form true solution.
WP, P - .....ANSWER ...✔✔ Wettable Powder - dry
formulation. Finely ground powder. Forms suspension not
true solution.
Abrasive, requires agitation, inhalation risk
DF, WDG - .....ANSWER ...✔✔ Dry flowables or
water dispersible granules - dry formulation. Similar to
WP except AI is in granule instead of powder
form suspension. Less dust than WP
G - .....ANSWER ...✔✔ Granules - dry formulation. AI
coated with clay, newspaper
Applied directly, no mixing
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Low hazzard to applicators
P, PS - .....ANSWER ...✔✔ Pellets - dry formulation.
Same as granules but larger
D - .....ANSWER ...✔✔ Dusts - dry formulations.
Low percentage of AI on very fine carrier (talk, chalk,
clay)
Most ready to use (no mixing)
Inhilation hazard
Drift hazzard (uncommon use)
EC - .....ANSWER ...✔✔ Emulsifiable concentrate - wet
formulation.
AI mixed with 1+ solvents and emulsifier that allows
mixing with water
Easily absorbed through skin (dermal hazzard)
ME - .....ANSWER ...✔✔ Microencapsulated - wet
formulation
AI is surrounded by plastic coating suspended in liquid
Time- release product
Bees catty it back to hive and can poison colony
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S - .....ANSWER ...✔✔ Solutions - wet formulation
Form true solution when mixed
Will not settle or separate
ULV - .....ANSWER ...✔✔ Ultra-low volume
concentration - wet formulation
Have high % ai with a solvent (usually oil)
Low application rate per acre
Fumigants - .....ANSWER ...✔✔ Produce gas, vapor,
fumes, etc.
Special licencing required
Highly toxic
Restricted use pesticides - .....ANSWER ...✔✔ Only
purchased by certified applicators or persons under
their supervision
Records of applications must be maintained for 2 years
Adjuvant - .....ANSWER ...✔✔ Chemical modifies
physical properties, enhances performance or both of
pesticides
ILLINOIS AERIAL APPLICATION EXAM
QUESTIONS AND ANSWERS 2025
What is a pesticide - .....ANSWER ...✔✔ a substance
used for destroying insects or other organisms harmful to
cultivated plants or to animals.
Pesticides are made up of - .....ANSWER ...✔✔ Active
and inert ingredients
AI - .....ANSWER ...✔✔ Active ingredient - chemical
effective against pest
Inert ingredients - .....ANSWER ...✔✔ don't harm pest
but make the AI more effective
Herbicide formulation - .....ANSWER ...✔✔ may be
ready to use or may require dilution with carrier (oil or
liquid)
,2|Page
60WDG - .....ANSWER ...✔✔ 60% AI water-
dispersible granule
4EC - .....ANSWER ...✔✔ 4 lbs ai per gallon of
emulsifiable concentrate
SP - .....ANSWER ...✔✔ Soluable powder - dry
formulation. Mixed with water. Dissolve readily and
form true solution.
WP, P - .....ANSWER ...✔✔ Wettable Powder - dry
formulation. Finely ground powder. Forms suspension not
true solution.
Abrasive, requires agitation, inhalation risk
DF, WDG - .....ANSWER ...✔✔ Dry flowables or
water dispersible granules - dry formulation. Similar to
WP except AI is in granule instead of powder
form suspension. Less dust than WP
G - .....ANSWER ...✔✔ Granules - dry formulation. AI
coated with clay, newspaper
Applied directly, no mixing
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Low hazzard to applicators
P, PS - .....ANSWER ...✔✔ Pellets - dry formulation.
Same as granules but larger
D - .....ANSWER ...✔✔ Dusts - dry formulations.
Low percentage of AI on very fine carrier (talk, chalk,
clay)
Most ready to use (no mixing)
Inhilation hazard
Drift hazzard (uncommon use)
EC - .....ANSWER ...✔✔ Emulsifiable concentrate - wet
formulation.
AI mixed with 1+ solvents and emulsifier that allows
mixing with water
Easily absorbed through skin (dermal hazzard)
ME - .....ANSWER ...✔✔ Microencapsulated - wet
formulation
AI is surrounded by plastic coating suspended in liquid
Time- release product
Bees catty it back to hive and can poison colony
, 4|Page
S - .....ANSWER ...✔✔ Solutions - wet formulation
Form true solution when mixed
Will not settle or separate
ULV - .....ANSWER ...✔✔ Ultra-low volume
concentration - wet formulation
Have high % ai with a solvent (usually oil)
Low application rate per acre
Fumigants - .....ANSWER ...✔✔ Produce gas, vapor,
fumes, etc.
Special licencing required
Highly toxic
Restricted use pesticides - .....ANSWER ...✔✔ Only
purchased by certified applicators or persons under
their supervision
Records of applications must be maintained for 2 years
Adjuvant - .....ANSWER ...✔✔ Chemical modifies
physical properties, enhances performance or both of
pesticides
