MN Pesticide Applicator study guide
MN Pesticide Applicator · Work through your exam, one topic at a time.
The Minnesota Pesticide Applicator License is issued by the Minnesota Department of Agriculture (MDA) to people who apply pesticides in the state. Pesticides include herbicides, insecticides, fungicides and other products intended to prevent, destroy, repel or mitigate a pest, plus substances used as plant regulators, defoliants or desiccants. The MDA issues licenses to Commercial and Noncommercial Pesticide Applicators and to Structural Pest Control Applicators; private applicators, typically farmers, follow a separate path. Commercial applicators make applications for hire, where customers are billed or invoiced. Topics on this exam: Core (Category A), Aerial (Category B), and Additional use category (one or more required). The MN Pesticide Applicator study guide has 3 sections and about 1,065 words.
01Category A - Core: Law, Safety, and Environmental Protection
Category A (Core) is the foundation exam every Minnesota pesticide applicator must pass before adding a use category. It tests FIFRA and Minnesota law, label comprehension, toxicity and signal words, PPE, safe handling, storage, transport, spill response, environmental protection, and integrated pest management. Expect scenario questions that ask what to do when the label, the client, and the weather conflict. The label is the law: follow site, rate, timing, PPE, buffer, and disposal directions.
352 words, about 2 min02Category B - Aerial Application: Aircraft, Drift, and Communication
Category B (Aerial) covers fixed-wing and rotorcraft applications in Minnesota. The exam emphasizes aircraft setup and calibration, nozzle and droplet management, drift and inversion awareness, swath spacing, flagging or GPS guidance, loading and emergency procedures, and communication with ground crews and neighbors. Questions often combine weather, aircraft setup, and label buffer requirements. Calibrate before each major change in product, nozzle, pressure, or speed; flow rate, swath width, and application height must match the label and aircraft.
359 words, about 2 min03Additional Use Category - Category C: Agricultural Plant Pest Control
An additional category such as Category C (Agricultural Plant Pest Control) tests pest identification, thresholds, pesticide selection, resistance management, crop safety, calibration, and recordkeeping for agricultural sites. The exam expects you to match the product to the pest and crop, respect preharvest intervals (PHI) and restricted-entry intervals (REI), and explain why label rate and timing matter. Scout and identify the pest before selecting a product; treat only when the economic threshold justifies it. Rotate modes of action to slow resistance; do not rely on one chemistry or one tank-mix partner.
354 words, about 2 min