Illinois Pesticide Applicator General Standards and Rights-of-Way
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Study Guide questions with verified answers
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A pesticide is defined as - ✔✔any chemical used to destroy, prevent, or control any form of
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life declared to be a pest
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The target pest for herbicides are - ✔✔weeds
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The target pest for insecticides are - ✔✔insects
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The target pest for fungicides are - ✔✔fungi
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The target pest for miticides (acaricides) are - ✔✔mites
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The target pest for repellents are - ✔✔insects and vertebrates
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What two general types of ingredients make up a pesticide formulation? - ✔✔1. Active
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ingredient
2. Inert ingredient
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Example of active ingredients in pesticides - ✔✔glyphosate, carbaryl, propiconazole
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Example of inert ingredient in pesticides - ✔✔solvent or dry carrier
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What are the three common types of mixtures? - ✔✔solutions
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suspensions
,emulsions
Solutions are - ✔✔mixtures formed by dissolving a substance in a liquid; solutions will not
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"settle out" and do not require agitation to keep the components in solution
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Suspensions are - ✔✔mixtures formed by dispersing fine solid particles in a liquid; the solid
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particles do not dissolve in the liquid carrier so suspensions must be agitated to maintain
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uniform particle distribution || ||
Emulsions are - ✔✔mixtures in which one liquid is suspended as tiny droplets in another
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liquid; for example, emulsifiable concentrates (EC) have active ingredients that are
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dissolved in an oil solvent and an emulsifying agent is added so that the formulation can be
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conveniently mixed with water to form an emulsion || || || || || || ||
What are some common dry herbicide formulation types? - ✔✔soluble powder (SP)
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wettable powder (WP) || ||
water dispersible granule (WDG)
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dry flowable (DF)
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granule (G) ||
Soluble Powder (SP) herbicide formulation - ✔✔1. dry formulation, forms a solution
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2. requires agitation at the initial stage
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3. is not abrasive to pump components
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Wettable Powder (WP) herbicide formulation - ✔✔1. dry formulation, forms a suspension
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2. requires strong agitation throughout to keep suspended
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3. is abrasive to pump components
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, 4. less likely to damage plants than EC formulation
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Water Dispersible Granule (WDG) / Dry Flowables (DF) herbicide formulation - ✔✔1. dry
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formulation, forms a suspension || || ||
2. requires strong agitation
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3. is abrasive to pump components
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4. safer to pour and dust because active ingredient is formulated as a microgranule instead
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of a powder
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Granule (G) herbicide formulation - ✔✔1. dry formulation, applied as is
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2. does not need agitation
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3. n/a to abrasion
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What are some common wet herbicide formulation types? - ✔✔Solution (S)
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Emulsifiable Concentrate (EC) || ||
Flowable or Liquid (F, FL, L) || || || || ||
Microencapsulated (ME) ||
Solution (S) herbicide formulation - ✔✔1. wet formulation, forms a solution
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2. requires initial agitation
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Emulsifiable Concentrate (EC) herbicide formulation - ✔✔1. wet formulation, forms an
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emulsion
2. requires slight agitation, otherwise oil will separate
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3. slightly abrasive to pump components
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4. especially hazardous because oil absorbs into skin easily
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Study Guide questions with verified answers
|| || || || ||
A pesticide is defined as - ✔✔any chemical used to destroy, prevent, or control any form of
|| || || || || || || || || || || || || || || || ||
life declared to be a pest
|| || || || ||
The target pest for herbicides are - ✔✔weeds
|| || || || || || ||
The target pest for insecticides are - ✔✔insects
|| || || || || || ||
The target pest for fungicides are - ✔✔fungi
|| || || || || || ||
The target pest for miticides (acaricides) are - ✔✔mites
|| || || || || || || ||
The target pest for repellents are - ✔✔insects and vertebrates
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What two general types of ingredients make up a pesticide formulation? - ✔✔1. Active
|| || || || || || || || || || || || || ||
ingredient
2. Inert ingredient
|| ||
Example of active ingredients in pesticides - ✔✔glyphosate, carbaryl, propiconazole
|| || || || || || || || ||
Example of inert ingredient in pesticides - ✔✔solvent or dry carrier
|| || || || || || || || || ||
What are the three common types of mixtures? - ✔✔solutions
|| || || || || || || || ||
suspensions
,emulsions
Solutions are - ✔✔mixtures formed by dissolving a substance in a liquid; solutions will not
|| || || || || || || || || || || || || || ||
"settle out" and do not require agitation to keep the components in solution
|| || || || || || || || || || || ||
Suspensions are - ✔✔mixtures formed by dispersing fine solid particles in a liquid; the solid
|| || || || || || || || || || || || || ||
particles do not dissolve in the liquid carrier so suspensions must be agitated to maintain
|| || || || || || || || || || || || || || || ||
uniform particle distribution || ||
Emulsions are - ✔✔mixtures in which one liquid is suspended as tiny droplets in another
|| || || || || || || || || || || || || || ||
liquid; for example, emulsifiable concentrates (EC) have active ingredients that are
|| || || || || || || || || || ||
dissolved in an oil solvent and an emulsifying agent is added so that the formulation can be
|| || || || || || || || || || || || || || || || ||
conveniently mixed with water to form an emulsion || || || || || || ||
What are some common dry herbicide formulation types? - ✔✔soluble powder (SP)
|| || || || || || || || || || ||
wettable powder (WP) || ||
water dispersible granule (WDG)
|| || ||
dry flowable (DF)
|| ||
granule (G) ||
Soluble Powder (SP) herbicide formulation - ✔✔1. dry formulation, forms a solution
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2. requires agitation at the initial stage
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3. is not abrasive to pump components
|| || || || || ||
Wettable Powder (WP) herbicide formulation - ✔✔1. dry formulation, forms a suspension
|| || || || || || || || || || ||
2. requires strong agitation throughout to keep suspended
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3. is abrasive to pump components
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, 4. less likely to damage plants than EC formulation
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Water Dispersible Granule (WDG) / Dry Flowables (DF) herbicide formulation - ✔✔1. dry
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formulation, forms a suspension || || ||
2. requires strong agitation
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3. is abrasive to pump components
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4. safer to pour and dust because active ingredient is formulated as a microgranule instead
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of a powder
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Granule (G) herbicide formulation - ✔✔1. dry formulation, applied as is
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2. does not need agitation
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3. n/a to abrasion
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What are some common wet herbicide formulation types? - ✔✔Solution (S)
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Emulsifiable Concentrate (EC) || ||
Flowable or Liquid (F, FL, L) || || || || ||
Microencapsulated (ME) ||
Solution (S) herbicide formulation - ✔✔1. wet formulation, forms a solution
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2. requires initial agitation
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Emulsifiable Concentrate (EC) herbicide formulation - ✔✔1. wet formulation, forms an
|| || || || || || || || || || ||
emulsion
2. requires slight agitation, otherwise oil will separate
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3. slightly abrasive to pump components
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4. especially hazardous because oil absorbs into skin easily
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