CA BRANCH 2 FIELD REP STUDY
GUIDE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+
vFalsifiable concentrates (EC or E) - Correct answer.Formulations made up of the technical material,
solvents and emulsifiers. Some agitation is required. Once dry, pesticide residue is barley visible.
Wettable Powder (WP) - Correct answer.These formulations are made by impregnating or coating an
appropriate powder with the technical insecticide. Wettable Powders do not dissolve in water and
frequent agitation is usually required. Heavy applications may leave visible deposits.
Soluble Powders (SP) - Correct answer.May look like Wettable Powders but they dissolve and form true
solutions when dilute with water. Less visible than Wettable Powders after drying, Frequent agitation is
not required.
Suspension Concentrates (SC) - Correct answer.Products made with small particles suspended in oil
solvents or water. Easy mix, require little or no agitation and remain stable for a long time. Have a greatly
reduced inhalation hazard because they come in a liquid form.
Flowable Liquids - Correct answer.Contains concentrated water dispersible powders in a liquid form.
These powders may stay suspended for a long time. Flowable liquids are easy to handle and have
excellent dilution properties.
Microencapsulated Formulations (ME) - Correct answer.manufactured by suspending liquid or solid
pesticide particles in microcapsules. By altering the membrane of the microcapsules, the residual
performance, speed and action and odor can be affected. May clog sprayers and leave visible residue.
, Dusts (D) - Correct answer.Made by combining and insecticide with a dust diluent (usually inert) Some
products such as Boric Acid Dusts, are almost totally comprised of Boric Acid and may have small
amounts of other ingredients added. Drifts are a major issue.
Granules - Correct answer.Made by coating or impregnating an inert carrier with an insecticide. Made of
materials, such as, clay, corn cobs, pecan shells, saw dust, etc. Formulations are ready to use and used
mostly for exterior perimeter of buildings for the control of crawling insects. Also is water activated.
Baits - Correct answer.Combination of a insecticide with an attractive carrier/food that the target pest
prefers. Pheromone attractants are added to increase the effects. Comes in forms of gels, granules,
paste, pellets, powders or liquids.
Fumigants - Correct answer.toxic gases such as methyl bromine that are used to kill pests.
Vitamin-K - Correct answer.The antidote to consuming Anti-coagulants.
LD-50 - Correct answer.the amount of a chemical that kills 50% of the animals in a test population.
LC-50 - Correct answer.the lethal concentration in air or water required to kill 50% of the population.
Acute Toxicity - Correct answer.adverse effects occur within a short period after exposure to toxin.
Chronic Toxicity - Correct answer.Repeated exposure over time to sub-lethal doses of chemicals.
Signal Word - Correct answer.Indicates how toxic a product is and how dangerous.
Danger - Correct answer.Category 1 Highly toxic LD-50 (0-50 mg/kg) a taste to a teaspoon could kill you.
Warning - Correct answer.Category 2 moderately toxic LD-50 (50-500 mg/kg) a teaspoon to a tablespoon
could kill you.
GUIDE QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+
vFalsifiable concentrates (EC or E) - Correct answer.Formulations made up of the technical material,
solvents and emulsifiers. Some agitation is required. Once dry, pesticide residue is barley visible.
Wettable Powder (WP) - Correct answer.These formulations are made by impregnating or coating an
appropriate powder with the technical insecticide. Wettable Powders do not dissolve in water and
frequent agitation is usually required. Heavy applications may leave visible deposits.
Soluble Powders (SP) - Correct answer.May look like Wettable Powders but they dissolve and form true
solutions when dilute with water. Less visible than Wettable Powders after drying, Frequent agitation is
not required.
Suspension Concentrates (SC) - Correct answer.Products made with small particles suspended in oil
solvents or water. Easy mix, require little or no agitation and remain stable for a long time. Have a greatly
reduced inhalation hazard because they come in a liquid form.
Flowable Liquids - Correct answer.Contains concentrated water dispersible powders in a liquid form.
These powders may stay suspended for a long time. Flowable liquids are easy to handle and have
excellent dilution properties.
Microencapsulated Formulations (ME) - Correct answer.manufactured by suspending liquid or solid
pesticide particles in microcapsules. By altering the membrane of the microcapsules, the residual
performance, speed and action and odor can be affected. May clog sprayers and leave visible residue.
, Dusts (D) - Correct answer.Made by combining and insecticide with a dust diluent (usually inert) Some
products such as Boric Acid Dusts, are almost totally comprised of Boric Acid and may have small
amounts of other ingredients added. Drifts are a major issue.
Granules - Correct answer.Made by coating or impregnating an inert carrier with an insecticide. Made of
materials, such as, clay, corn cobs, pecan shells, saw dust, etc. Formulations are ready to use and used
mostly for exterior perimeter of buildings for the control of crawling insects. Also is water activated.
Baits - Correct answer.Combination of a insecticide with an attractive carrier/food that the target pest
prefers. Pheromone attractants are added to increase the effects. Comes in forms of gels, granules,
paste, pellets, powders or liquids.
Fumigants - Correct answer.toxic gases such as methyl bromine that are used to kill pests.
Vitamin-K - Correct answer.The antidote to consuming Anti-coagulants.
LD-50 - Correct answer.the amount of a chemical that kills 50% of the animals in a test population.
LC-50 - Correct answer.the lethal concentration in air or water required to kill 50% of the population.
Acute Toxicity - Correct answer.adverse effects occur within a short period after exposure to toxin.
Chronic Toxicity - Correct answer.Repeated exposure over time to sub-lethal doses of chemicals.
Signal Word - Correct answer.Indicates how toxic a product is and how dangerous.
Danger - Correct answer.Category 1 Highly toxic LD-50 (0-50 mg/kg) a taste to a teaspoon could kill you.
Warning - Correct answer.Category 2 moderately toxic LD-50 (50-500 mg/kg) a teaspoon to a tablespoon
could kill you.
