IOWA APPLICATOR REVISION TEST 2026/2027
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔The active ingredient in Lorsban 75WG is listed as chlorpyrifos: 0,0-diethyl 0-(3,5,6-
trichloro 2-pyridinyl) phosphorothioate. What does the term "chlorpyrifos" represent?
• The registered trade name.
• The brand name.
• The common name.
• The chemical name. - ✔✔The common name
✔✔The route of entry statement on a label "Extremely hazardous by skin contact —
rapidly absorbed through the skin" would most likely appear with which signal word?
• DANGER.
• No signal word required.
• WARNING.
• CAUTION. - ✔✔DANGER
✔✔Which is an advantage of microencapsulated materials?
• They pose few hazards to bees.
• They usually require only short restricted entry intervals.
• Delayed or slow release of the active ingredient prolongs its effectiveness.
• Their pesticidal activity is independent of weather conditions. - ✔✔Delayed or slow
release of the active ingredient prolongs its effectiveness.
✔✔Which is a disadvantage of both EC and ULV formulations?
• Require constant agitation to keep in suspension.
• Solvents may cause rubber or plastic hoses, gaskets, and pump parts and surfaces to
deteriorate.
• Difficult to handle, transport, and store.
• Contribute to abrasive wear of nozzles and pumps. - ✔✔Solvents may cause rubber or
plastic hoses, gaskets, and pump parts and surfaces to deteriorate.
✔✔Which liquid pesticide formulation consists of a small amount of active ingredient
(often 1 percent or less per unit volume) dissolved in an organic solvent?
• Ultra-low volume (ULV).
• Flowables (F)/liquids (L).
• Ready-to-use low-concentrate solutions (RTU).
• Emulsifiable concentrate (EC). - ✔✔Ready-to-use low-concentrate solutions (RTU).
, ✔✔Which dry/solid formulation is mixed in water and reduces the risk of inhalation
exposure during mixing and loading?
• Soluble powders (SP).
• Wettable powders (WP).
• Dusts (D).
• Water-dispersable granules (WDG) or dry flowables (DF). - ✔✔Water-dispersable
granules (WDG) or dry flowables (DF).
✔✔The name "Sevin 5G" on a pesticide label indicates:
• A gel pesticide with 5 percent inert ingredients.
• A gel pesticide with 5 percent active ingredients.
• A granular pesticide with 5 percent active ingredients.
• A granular pesticide with 5 percent inert ingredients. - ✔✔A granular pesticide with 5
percent active ingredients.
✔✔Which type of adjuvant increases the viscosity of spray mixtures?
• Extenders.
• Stickers.
• Plant penetrants.
• Thickeners. - ✔✔Thickeners
✔✔Which statement is true about heat stress?
• Less than 10 percent of people affected by severe heat stroke die.
• Lack of sweat is a symptom of heat stroke.
• Constriction of pupils is a symptom of heat stroke.
• Wearing lots of PPE prevents heat stress. - ✔✔Lack of sweat is a symptom of heat
stroke.
✔✔Which statement is false about harmful effects of pesticides?
• Many herbicides and fungicides cause dermatitis.
• Fumigants can cause severe blisters.
• Asthma-like symptoms may be caused by allergies to pesticides.
• The most common form of pesticide injury is by inhalation. - ✔✔The most common
form of pesticide injury is by inhalation.
✔✔When should a blood test for baseline cholinesterase be done?
• Baseline testing should be done during the time of year when pesticides are not being
used or at least 30 days from the most recent exposure.
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔The active ingredient in Lorsban 75WG is listed as chlorpyrifos: 0,0-diethyl 0-(3,5,6-
trichloro 2-pyridinyl) phosphorothioate. What does the term "chlorpyrifos" represent?
• The registered trade name.
• The brand name.
• The common name.
• The chemical name. - ✔✔The common name
✔✔The route of entry statement on a label "Extremely hazardous by skin contact —
rapidly absorbed through the skin" would most likely appear with which signal word?
• DANGER.
• No signal word required.
• WARNING.
• CAUTION. - ✔✔DANGER
✔✔Which is an advantage of microencapsulated materials?
• They pose few hazards to bees.
• They usually require only short restricted entry intervals.
• Delayed or slow release of the active ingredient prolongs its effectiveness.
• Their pesticidal activity is independent of weather conditions. - ✔✔Delayed or slow
release of the active ingredient prolongs its effectiveness.
✔✔Which is a disadvantage of both EC and ULV formulations?
• Require constant agitation to keep in suspension.
• Solvents may cause rubber or plastic hoses, gaskets, and pump parts and surfaces to
deteriorate.
• Difficult to handle, transport, and store.
• Contribute to abrasive wear of nozzles and pumps. - ✔✔Solvents may cause rubber or
plastic hoses, gaskets, and pump parts and surfaces to deteriorate.
✔✔Which liquid pesticide formulation consists of a small amount of active ingredient
(often 1 percent or less per unit volume) dissolved in an organic solvent?
• Ultra-low volume (ULV).
• Flowables (F)/liquids (L).
• Ready-to-use low-concentrate solutions (RTU).
• Emulsifiable concentrate (EC). - ✔✔Ready-to-use low-concentrate solutions (RTU).
, ✔✔Which dry/solid formulation is mixed in water and reduces the risk of inhalation
exposure during mixing and loading?
• Soluble powders (SP).
• Wettable powders (WP).
• Dusts (D).
• Water-dispersable granules (WDG) or dry flowables (DF). - ✔✔Water-dispersable
granules (WDG) or dry flowables (DF).
✔✔The name "Sevin 5G" on a pesticide label indicates:
• A gel pesticide with 5 percent inert ingredients.
• A gel pesticide with 5 percent active ingredients.
• A granular pesticide with 5 percent active ingredients.
• A granular pesticide with 5 percent inert ingredients. - ✔✔A granular pesticide with 5
percent active ingredients.
✔✔Which type of adjuvant increases the viscosity of spray mixtures?
• Extenders.
• Stickers.
• Plant penetrants.
• Thickeners. - ✔✔Thickeners
✔✔Which statement is true about heat stress?
• Less than 10 percent of people affected by severe heat stroke die.
• Lack of sweat is a symptom of heat stroke.
• Constriction of pupils is a symptom of heat stroke.
• Wearing lots of PPE prevents heat stress. - ✔✔Lack of sweat is a symptom of heat
stroke.
✔✔Which statement is false about harmful effects of pesticides?
• Many herbicides and fungicides cause dermatitis.
• Fumigants can cause severe blisters.
• Asthma-like symptoms may be caused by allergies to pesticides.
• The most common form of pesticide injury is by inhalation. - ✔✔The most common
form of pesticide injury is by inhalation.
✔✔When should a blood test for baseline cholinesterase be done?
• Baseline testing should be done during the time of year when pesticides are not being
used or at least 30 days from the most recent exposure.
