age 1 of 70
Illinois Pesticide Applicator FINAL EXAM STUDY GUIDE
2025/2026 ACCURATE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <RECENT VERSION>
Making Tank Mixes .......Answer.........1. fill the tank with 1/2 one
quarter of carrier and begin agitation, if needed add
compatibility, buffering or foaming agent (use before any other
product). if using drift reduction additive read label. 2nd slowly
add and mix the pesticide products one at a time beginning with
the ones hardest to mix. (WP and dry flowables (DF) or water
dispersible granules (WDG) products should be added first
followed by Flowable (F,FL), and micro encapsulated (ME)
products. Add (EC) next followed by any solution (S) or soluble
powder (SP) Penetrants and surfactants should be added last.
,age 2 of 70
Dry Fomulations should be mixed with water before adding
them.
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)
,age 3 of 70
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
, age 4 of 70
G .......Answer.........Granules - dry formulation. AI coated with
clay, newspaper
Applied directly, no mixing
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.
Illinois Pesticide Applicator FINAL EXAM STUDY GUIDE
2025/2026 ACCURATE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <RECENT VERSION>
Making Tank Mixes .......Answer.........1. fill the tank with 1/2 one
quarter of carrier and begin agitation, if needed add
compatibility, buffering or foaming agent (use before any other
product). if using drift reduction additive read label. 2nd slowly
add and mix the pesticide products one at a time beginning with
the ones hardest to mix. (WP and dry flowables (DF) or water
dispersible granules (WDG) products should be added first
followed by Flowable (F,FL), and micro encapsulated (ME)
products. Add (EC) next followed by any solution (S) or soluble
powder (SP) Penetrants and surfactants should be added last.
,age 2 of 70
Dry Fomulations should be mixed with water before adding
them.
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)
,age 3 of 70
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
, age 4 of 70
G .......Answer.........Granules - dry formulation. AI coated with
clay, newspaper
Applied directly, no mixing
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.
