Standards Workbook SP39-W Exam
Questions and Answers 100% Pass
A "pesticide" is defined as... - ✔✔any chemical used to destroy, prevent, or control any
form of life declared to be a pest.
TIP: Without humans, there would be no "pests," as humans are the ones who defined
organisms as "out of place," or "a nuisance."
Herbicides - ✔✔This type of pesticide controls weeds
Insecticides - ✔✔This type of pesticide controls insect pests
Fungicides - ✔✔This type of pesticide controls fungi
Miticides (acaricides) - ✔✔This type of pesticide controls mites, ticks (also known as
"acaricides")
Repellants - ✔✔This type of pesticide repels insects, vertebrates
c) herbicides, insecticides, fungicides - ✔✔The three most commonly applied pesticide
groups are:
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,a) herbicides, miticides, fungicides
b) herbicides, insecticides, repellants
c) herbicides, insecticides, fungicides
*This one is not in the workbook, I made it up
Active, Inert - ✔✔What two types of ingredients make up a pesticide formulation?
Active ingredients - ✔✔Toxic to the pest, effective against target pests (ex: glyphosate,
carbaryl, propiconazole)
Inert ingredients - ✔✔Do not have direct effect on pest, added to make the product
safer (safener), more effective, or easier to use (ex: solvent or dry carrier)
Solutions - ✔✔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 - ✔✔Mixtures formed by dispersing fine solid particles in a liquid. The
solid particles do not dissolve in the liquid carrier. Suspensions must be agitated to
maintain uniform particle distribution.
Emulsions - ✔✔Mixtures in which one liquid is suspended as tiny droplets in another
liquid. (ex: 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.
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, . - ✔✔*Please see table on pg 2 of workbook until I can figure out how to turn it into
questions
Fumigants - ✔✔Pesticides that form gasses or vapors, most are highly toxic and require
additional licensing.
Percent, by weight - ✔✔Concentration of active ingredients in DRY products is
described as __________ of active ingredient ___________
Pounds, per gallon - ✔✔Concentration of active ingredients in WET products is
described as __________ of active ingredient ___________
Product Information - ✔✔What is the section of the pesticide label that always includes
the concentration of an active ingredient in a particular formulation?
Adjuvant - ✔✔A chemical that modifies a pesticide's physical properties and/or
enhances its performance?
Utility agents & spray modifiers - ✔✔What are the two classes of adjuvants?
Utility agents - ✔✔Adjuvant that aids mixing in the spray tank
Compatibility agents, pH buffering agents, and anti-foaming agents - ✔✔Examples of
utility agents? (3)
Spray Modifiers - ✔✔Adjuvant that aids spray application & coverage.
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