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Texas Pesticide License Practice Test (Free Core Exam Questions)

Preparing for the Texas pesticide applicator exam? In Texas, applicator certification and licensing are handled by the state pesticide regulatory agency, generally the Texas Department of Agriculture. Like every state, Texas requires applicators to show competency in the core (general standards) areas set out in federal rules: label comprehension, safety, environmental protection, pests, pesticides, equipment, application methods, laws, supervision, and professionalism. Most candidates also take a state laws section and one or more category exams.

Confirm current exam requirements, manuals, fees, and testing locations directly with the Texas Department of Agriculture. This site is unofficial and not affiliated with any Texas agency.

10 free Texas core exam practice questions

1. Continuing education (recertification) is important because:

Answer: D. Recertification keeps applicators current. Federal rules require it at intervals no longer than 5 years.

2. A product contains 4 pounds of active ingredient per gallon. The recommended rate is 1 pound of active ingredient per acre. How much product per acre?

Answer: C. 1 lb needed / 4 lb per gallon = 0.25 gallon = 1 quart per acre.

3. The pre-harvest interval (PHI) is the minimum time between:

Answer: C. The PHI is the minimum number of days between the last application and harvest, so residues stay within legal tolerances.

4. When you take someone for medical care after a pesticide exposure, you should bring:

Answer: C. The label gives medical staff the active ingredient, signal word, and treatment information.

5. A temperature inversion is a condition where:

Answer: D. During an inversion, still, cool air near the surface can hold fine spray droplets and carry them long distances. Inversions are common on calm, clear mornings and evenings.

6. Integrated Pest Management (IPM) is best described as:

Answer: D. IPM uses identification, monitoring, thresholds, and a combination of cultural, biological, mechanical, and chemical tools.

7. Which formulation abbreviation stands for emulsifiable concentrate?

Answer: C. EC (or E) is an emulsifiable concentrate: active ingredient in a petroleum solvent with emulsifiers, which forms a milky emulsion in water.

8. Which nozzle material generally resists wear the LEAST?

Answer: C. Brass is inexpensive but wears quickly, especially with abrasive formulations like wettable powders.

9. Chemigation (applying pesticides through irrigation systems) requires:

Answer: D. Chemigation labels require specific anti-backflow and interlock devices to prevent contamination of water supplies.

10. The Endangered Species Act affects pesticide use by:

Answer: B. Labels may direct applicators to check use limitations (for example, EPA's Bulletins Live! Two) to protect listed species and critical habitat.
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How to study for the Texas core exam

  1. Get the core manual edition your state uses (many states are moving to the 2025 3rd edition national core manual during 2026) and any Texas law supplement.
  2. Take a timed practice test to find your weak areas.
  3. Re-read those chapters, then retest until you're consistently above passing.
  4. Memorize the high-yield facts: signal words, first aid, PPE rules, drift and inversions, and basic calibration math.

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