ILLINOIS TURF PESTICIDE EVALUATION EXAMS 2025/2026
QUESTIONS AND SOLUTIONS GRADED A+
✔✔formulations - ✔✔Salable forms of pesticide, including active and inert ingredients.
✔✔Buffering agents - ✔✔may be added to reduce pesticide inactivation due to the pH
of the carrier
✔✔antagonism - ✔✔Decreased activity or effectiveness
✔✔synergism - ✔✔increased activity or effectiveness
✔✔Early Preplant (EPP) - ✔✔pesticides are applied several weeks before a crop is
planted
✔✔Preplant incorporated (PPI) - ✔✔pesticides are applied prior to planting and worked
into the soil
✔✔Preemergence (PrE) - ✔✔pesticides are applied during or soon after planting but
before weeds emerge
✔✔Postemergence (PoE - ✔✔Pesticides are applied to the foliage of plants
✔✔Directed Postemergence - ✔✔Less- selective herbicides are directed away from the
crop and onto the weeds to minimize crop injury
✔✔Systematic pesticides - ✔✔move within the plant or animal from the site of uptake to
other parts of the plant or animal
✔✔residue - ✔✔pesticide or its breakdown products that remain in or on plants or
animals or in the soil after treatment
✔✔tolerance - ✔✔amount of pesticide residue that may legally remain on or in the food
or feed crop when harvested
✔✔selective pesticides - ✔✔control certain pests with little or no injury related to
organisms
✔✔nonselective (broad- spectrum) pesticides - ✔✔control nearly all related organisms
✔✔contact pesticides - ✔✔control by direct contact with the pest
✔✔resurgence - ✔✔occurs when these predator or parasite populations rebound more
slowly than the target pest
QUESTIONS AND SOLUTIONS GRADED A+
✔✔formulations - ✔✔Salable forms of pesticide, including active and inert ingredients.
✔✔Buffering agents - ✔✔may be added to reduce pesticide inactivation due to the pH
of the carrier
✔✔antagonism - ✔✔Decreased activity or effectiveness
✔✔synergism - ✔✔increased activity or effectiveness
✔✔Early Preplant (EPP) - ✔✔pesticides are applied several weeks before a crop is
planted
✔✔Preplant incorporated (PPI) - ✔✔pesticides are applied prior to planting and worked
into the soil
✔✔Preemergence (PrE) - ✔✔pesticides are applied during or soon after planting but
before weeds emerge
✔✔Postemergence (PoE - ✔✔Pesticides are applied to the foliage of plants
✔✔Directed Postemergence - ✔✔Less- selective herbicides are directed away from the
crop and onto the weeds to minimize crop injury
✔✔Systematic pesticides - ✔✔move within the plant or animal from the site of uptake to
other parts of the plant or animal
✔✔residue - ✔✔pesticide or its breakdown products that remain in or on plants or
animals or in the soil after treatment
✔✔tolerance - ✔✔amount of pesticide residue that may legally remain on or in the food
or feed crop when harvested
✔✔selective pesticides - ✔✔control certain pests with little or no injury related to
organisms
✔✔nonselective (broad- spectrum) pesticides - ✔✔control nearly all related organisms
✔✔contact pesticides - ✔✔control by direct contact with the pest
✔✔resurgence - ✔✔occurs when these predator or parasite populations rebound more
slowly than the target pest
