CA BRANCH 2 FIELD REP STUDY GUIDE LATEST UPDATE
2026/2027
Falsifiable concentrates (EC or E) -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) -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) -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) -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 -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) -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) -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 -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 -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 -ANSWER-toxic gases such as methyl bromine that are used to kill pests.
Vitamin-K -ANSWER-The antidote to consuming Anti-coagulants.
LD-50 -ANSWER-the amount of a chemical that kills 50% of the animals in a test population.
LC-50 -ANSWER-the lethal concentration in air or water required to kill 50% of the
population.
Acute Toxicity -ANSWER-adverse effects occur within a short period after exposure to toxin.
Chronic Toxicity -ANSWER-Repeated exposure over time to sub-lethal doses of chemicals.
Signal Word -ANSWER-Indicates how toxic a product is and how dangerous.
Danger -ANSWER-Category 1 Highly toxic LD-50 (0-50 mg/kg) a taste to a teaspoon could kill
you.
Warning -ANSWER-Category 2 moderately toxic LD-50 (50-500 mg/kg) a teaspoon to a
tablespoon could kill you.
2026/2027
Falsifiable concentrates (EC or E) -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) -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) -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) -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 -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) -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) -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 -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 -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 -ANSWER-toxic gases such as methyl bromine that are used to kill pests.
Vitamin-K -ANSWER-The antidote to consuming Anti-coagulants.
LD-50 -ANSWER-the amount of a chemical that kills 50% of the animals in a test population.
LC-50 -ANSWER-the lethal concentration in air or water required to kill 50% of the
population.
Acute Toxicity -ANSWER-adverse effects occur within a short period after exposure to toxin.
Chronic Toxicity -ANSWER-Repeated exposure over time to sub-lethal doses of chemicals.
Signal Word -ANSWER-Indicates how toxic a product is and how dangerous.
Danger -ANSWER-Category 1 Highly toxic LD-50 (0-50 mg/kg) a taste to a teaspoon could kill
you.
Warning -ANSWER-Category 2 moderately toxic LD-50 (50-500 mg/kg) a teaspoon to a
tablespoon could kill you.
