Ohio Pesticide Applicator Exam · Theory

Ohio pesticide license practice test

Practice questions for the Ohio core exam, written from the EPA certification standards and Ohio pesticide law and explained one by one. Train by topic, then take a timed mock exam.

Take the practice test

10 practice questions from the question catalog. How many can you get right?

Question 1 of 10
1Which practice helps protect groundwater at a mixing and loading site?

Exactly one answer is correct.

2What is the minimum age for a certified commercial applicator under federal standards?

Exactly one answer is correct.

3Which formulation abbreviation stands for wettable powder?

Exactly one answer is correct.

4What is the effect of raising spray pressure on droplet size?

Exactly one answer is correct.

5What should an applicator do if a respirator cartridge begins to smell like the pesticide when worn?

Exactly one answer is correct.

6Which pests are often controlled by herbicides?

Exactly one answer is correct.

7Integrated pest management (IPM) is best described as

Exactly one answer is correct.

8A spot treatment is best described as an application to

Exactly one answer is correct.

9In the 1/128 acre calibration method, a nozzle collects 18 fluid ounces over the course. What is the sprayer output in gallons per acre?

Exactly one answer is correct.

10A commercial applicator may apply fumigants only when licensed in, and working within, which pesticide-use categories?

Exactly one answer is correct.

How the Ohio pesticide applicator exam works

Commercial and private pesticide applicators in Ohio need a license from the Ohio Department of Agriculture (ODA). Commercial applicators pass the Core exam and at least one category exam, then apply for the license.

The exams are multiple choice and you need 70 percent to pass. If you fail, you can retake an exam after five business days. Topics include labels, safety, the environment, pests, equipment, calibration and Ohio pesticide law.

This site is an independent exam trainer. The license itself is issued by ODA, not by us. ODA does not publish the length of the Core exam, so our 75 question mock exam is a practice target.

The topics of the test

The 398 questions in the catalog are spread across these areas. In the trainer you practice all of them until every area sticks.

  • Label and Labeling Comprehension40 questions
  • Safety and Personal Protective Equipment36 questions
  • Environmental Concerns30 questions
  • Pests and Pest Management25 questions
  • Pesticides and Formulations24 questions
  • Application Equipment30 questions
  • Application Methods25 questions
  • Federal Laws and Regulations35 questions
  • Supervising Noncertified Applicators20 questions
  • Professionalism and Stewardship20 questions
  • Calibration and Math40 questions
  • Ohio Pesticide Law73 questions

How many questions can you get right?

10 practice questions, free and without signing up. At the end you see whether it would already be enough for the test.

How you learn with us

No rote memorizing from start to finish. The trainer remembers what you know and practices exactly the rest with you.

  1. Take the practice test

    10 practice questions, free. Afterwards you know where you stand.

  2. All questions with solutions

    The complete catalog with 398 questions, each with the correct answer.

  3. Tests that adapt to you

    Every round puts the questions together anew. Whatever you got wrong comes back until it sticks.

  4. Pass or get your money back

    If you fail despite practicing, you get your last payment back.

Full access

All questions and answers in the online trainer

Everything you need for the knowledge test in one place. No book, no class, on your phone or computer.

  • 398 questionsAll with solutions
  • 75 in 90 minutesLike in the real test
  • 12 topic areasPractice targeted, one by one

The complete question catalog

All 398 questions that could come up, each with the correct answer. You learn exactly what gets asked.

For every question you see how often others get it wrong and which answer they mix it up with. That way you spot the traps.

Test simulation like the real thing

75 questions, 90 minutes, graded like the real test: at least 53 correct answers out of 75 (70 percent, our practice target).

Every round is shuffled anew. Afterwards you see right away whether you would have passed and what is still missing.

Practice that adapts to you

The trainer remembers what you already know. Wrong answers come back until they stick, and a question only counts as learned once you have answered it correctly several times with time in between.

You can also practice individual topics or just your weak spots.

Your plan until the test

Enter your test date and the trainer spreads the questions across the remaining days. That way a small round waits for you every day instead of cramming everything the last evening.

Your progress shows you at any time when you are ready for the test.

Short videos to swipe New

Learn like on Instagram or TikTok: Every question comes as a short video, you tap your answer and swipe to the next one. Whatever you got wrong shows up more often.

Ideal for in between, on the train or on a break.

Pricing

Both options include all questions and answers and all trainer features. You only decide whether you pay weekly or once.

Weekly pass

$7.99per week

  • All 398 questions and answers
  • All trainer features
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Permanent access

$39.99one-time

  • All 398 questions and answers
  • All trainer features
  • Pay once, no subscription
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Money-
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Our money-back guarantee

We are confident that you will pass with the trainer. If not, we refund the last payment of your subscription. The guarantee applies to the subscription, not to lifetime access.

It is that simple: Within 30 days after the test, send us a short email at [email protected] with proof, for example a photo of your test result. No follow-up questions, no form. The exact conditions are in the terms and conditions.

Frequently asked questions

What score do I need on the Ohio Core exam?

70 percent. Exam length varies by category, from about 25 to 150 questions.

Is there a minimum age?

From January 1, 2027 you must be 18 to take the exam. Check the ODA pages for the current rules and fees.

Are these the real exam questions?

No. the Ohio Department of Agriculture does not publish its exam questions. All questions here are our own, written from the EPA core competency standards (40 CFR 171.103) and Ohio pesticide law.

Do I get my license here?

No. This site only helps you prepare. Licenses are issued by the Ohio Department of Agriculture after you pass the exams. We are not affiliated with the agency or its testing provider.

Do you cover the category exams?

Not yet. This trainer covers the core exam that every applicator must pass. Category exams such as agricultural plant, right of way or turf and ornamental follow the same label, safety and calibration basics.

Do you have pesticide license practice tests for other states?

Yes. Every state runs its own applicator exam with its own state law part, so each one has its own trainer: Texas, North Carolina and Illinois.