Complete Practice Test Bank – 600 Questions with Verified Answers & Detailed Rationales
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Table of Contents
1. Exam Overview
2. Domain 1: Ohio Category 10d Scope and Regulatory Requirements (Questions 1–60)
3. Domain 2: Mosquito Biology, Identification, and Surveillance (Questions 61–150)
4. Domain 3: House Fly and Other Public-Health Pest Management (Questions 151–210)
5. Domain 4: Tick, Chigger, and Other Vector Identification (Questions 211–270)
6. Domain 5: Integrated Pest Management and Threshold-Based Decisions (Questions 271–330)
7. Domain 6: Pesticide Selection, Labels, Formulations, and Application (Questions 331–390)
8. Domain 7: Public Health, Environmental Protection, and Non-Target Safety (Questions 391–
450)
9. Domain 8: Resistance Management and Vector Control Operations (Questions 451–510)
10. Domain 9: Personal Protective Equipment, Mixing, Loading, and Equipment Safety (Questions
511–555)
11. Domain 10: Ohio Pesticide Laws, Licensing, Records, and Professional Responsibility
(Questions 556–600)
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Exam Overview
,The Ohio Commercial Pesticide Applicator Category 10d – Vector Control Exam is administered
by the Ohio Department of Agriculture (ODA) and is designed for applicators who apply pesticides
outdoors to control invertebrate pests that are a threat to public health or a nuisance to humans.
This category specifically includes mosquitoes, house flies, ticks, fleas, biting flies (horse/deer
flies), ants, yellowjackets, wasps, and chiggers.
Exam Format:
- Total Questions: 25 questions (Category 10d)
- Passing Score: 70%
- Question Type: Multiple choice, written in English
- Closed Book: No reference materials permitted
Core Domains Covered:
Domain Topic Area Weight
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1 Ohio Category 10d Scope and Regulatory Requirements 10%
2 Mosquito Biology, Identification, and Surveillance 15%
3 House Fly and Other Public-Health Pest Management 10%
4 Tick, Chigger, and Other Vector Identification 10%
5 Integrated Pest Management and Threshold-Based Decisions 10%
6 Pesticide Selection, Labels, Formulations, and Application 10%
7 Public Health, Environmental Protection, and Non-Target Safety 10%
8 Resistance Management and Vector Control Operations 10%
9 Personal Protective Equipment, Mixing, Loading, and Equipment Safety 8%
10 Ohio Pesticide Laws, Licensing, Records, and Professional Responsibility 7%
,Percentages are approximate
Reference Materials:
- OSU Extension Bulletin e841-10D: Category 10d—Mosquito, House Fly, and Vector Control Study
Guide
- OSU Extension Bulletin 825: Applying Pesticides Correctly (Core Manual)
- Ohio Revised Code (ORC) Chapter 921
- Ohio Administrative Code (OAC) Chapter 901:5-11
- FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act)
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Domain 1: Ohio Category 10d Scope and Regulatory Requirements (Questions 1–60)
Question 1: An applicator is asked to treat a public park for mosquitoes that are creating a
nuisance and may pose a public-health concern. Which Ohio commercial pesticide-use category
most directly covers this work?
A) Category 5 – Industrial Vegetation Control
B) Category 8 – Turf Pest Control
C) Category 10d – Mosquito, House Fly, and Other Vector Control
D) Category 7 – Vertebrate Animal Control
Answer: C
Rationale: Ohio defines Category 10d as outdoor pesticide application for invertebrate pests that
threaten public health or are a nuisance to humans, specifically including mosquitoes, house flies,
chiggers, and ticks.
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Question 2: Which type of pest is specifically included within the scope of Ohio Category 10d?
A) Termites inside residential structures
B) Ticks that pose a nuisance or public-health concern
C) Rats inside warehouses
D) Weeds along highway rights-of-way
Answer: B
Rationale: Category 10d specifically addresses outdoor control of invertebrate public-health or
nuisance pests, including ticks. Termites, rodents, and vegetation fall into other pesticide-use
categories.
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Question 3: A commercial applicator holds a license in Category 10d but is asked to perform an
application that falls exclusively within another pesticide-use category. What is the most
appropriate response?
A) Perform the application because any commercial applicator may use any pesticide
B) Perform it if the customer signs a waiver
C) Perform it only when the pesticide is not restricted use
D) Decline the application unless the applicator is properly licensed for the applicable category
Answer: D