Wyoming Pesticide Applicator Practice Test 2026 – Complete Exam Prep

Question: 1 / 605

What do plant growth regulators (PGR) affect in plants?

Pheromone

Poison Control Center

Point of Runoff

Growth and development of plants

Plant growth regulators (PGRs) are chemicals that affect the growth and development of plants. Pheromones, which are chemical signals used for communication between plants, are not considered PGRs. The Poison Control Center has no relationship to PGRs. Point of runoff refers to the point at which water or other substances runoff from the surface of the soil, and is not related to PGRs. Therefore, the correct answer is D, as PGRs specifically target and impact the growth and development of plants.

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