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Sample IA Pesticide Applicator Practice Questions

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1Under Iowa Code Chapter 206, which state agency administers pesticide applicator certification and licensing?
A.Iowa Department of Natural Resources
B.Iowa Department of Agriculture and Land Stewardship (IDALS)
C.Iowa Department of Public Health
D.Iowa State University Extension
Explanation: The Iowa Department of Agriculture and Land Stewardship (IDALS) Pesticide Bureau administers pesticide applicator certification and licensing under Iowa Code Chapter 206. While Iowa State University Extension provides training materials, IDALS is the regulatory authority.
2As of January 1, 2026, what is the minimum age to apply restricted-use pesticides (RUPs) in Iowa as a commercial applicator?
A.16 years old
B.18 years old
C.21 years old
D.No minimum age requirement
Explanation: Effective January 1, 2026, Iowa requires commercial, private, and noncertified applicators to be at least 18 years old to apply restricted-use pesticides (RUPs). Immediate family members aged 16+ may apply RUPs on the family farm under direct supervision of a certified private applicator.
3How many questions are on the Iowa commercial pesticide applicator Core exam?
A.25 questions
B.35 questions
C.50 questions
D.100 questions
Explanation: The Iowa commercial pesticide applicator Core exam consists of 50 closed-book questions covering the Iowa Core Manual. Applicants must also pass a separate 35-question category-specific exam for each category in which they seek certification.
4What new pesticide applicator category did IDALS introduce effective January 1, 2026?
A.Category 11 — Aerial Application
B.Category 12 — Soil Fumigation
C.Category 13 — Aquatic Pest Control
D.Category 14 — Wood Preservation
Explanation: Effective January 1, 2026, IDALS introduced Category 12 — Soil Fumigation for individuals using or supervising the use of gaseous pesticides in soil. Applicators in this category must pass an exam based on the new National Soil Fumigation Manual.
5Under Iowa's 2026 rules, how long may a noncertified applicator apply RUPs after initial employment under direct supervision?
A.7 days
B.14 days
C.21 days
D.30 days
Explanation: Under Iowa's updated 2026 rules aligned with EPA standards, noncertified applicators may qualify to apply RUPs for up to 21 days after initial employment under direct supervision. The certified applicator must be physically present at the application site within sight or hearing distance.
6What does the signal word 'DANGER' on a pesticide label indicate?
A.The product is slightly toxic
B.The product is moderately toxic
C.The product is highly toxic or causes irreversible eye/skin damage
D.The product requires special storage conditions
Explanation: The signal word 'DANGER' indicates the pesticide is highly toxic (Toxicity Category I) and may cause severe eye or skin damage. 'DANGER—POISON' with a skull and crossbones is used for the most acutely toxic products. 'WARNING' indicates moderate toxicity and 'CAUTION' indicates slight toxicity.
7According to FIFRA, which part of a pesticide label is legally binding?
A.Only the active ingredient statement
B.Only the directions for use section
C.The entire label including all directions and precautionary statements
D.Only the signal word and first aid sections
Explanation: Under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the entire pesticide label is a legal document. It is a violation of federal law to use any pesticide in a manner inconsistent with its labeling. This includes all directions for use, precautionary statements, storage and disposal instructions, and environmental hazard statements.
8What is the maximum civil penalty per violation for pesticide misuse by a private applicator under Iowa Code 206.19?
A.$100
B.$250
C.$500
D.$1,000
Explanation: Under Iowa Code Section 206.19(5)(b), civil penalties of up to $500 per offense may be assessed for pesticide misuse or noncompliance by either private or commercial applicators. Iowa Administrative Code 21-45.102 specifies that each day a commercial applicator remains in violation after written notification from IDALS may be considered a separate offense. Failure to pay within three months is grounds for license suspension or revocation.
9What is the primary route of pesticide exposure for applicators?
A.Oral (ingestion)
B.Dermal (skin absorption)
C.Inhalation (breathing)
D.Ocular (eye contact)
Explanation: Dermal exposure (skin absorption) is the most common route of pesticide exposure for applicators, accounting for approximately 97% of total body exposure during typical mixing and application activities. Wearing appropriate PPE, especially chemical-resistant gloves and coveralls, is critical to reduce dermal exposure.
10Which type of PPE should always be worn when mixing concentrated pesticides unless the label specifies otherwise?
A.Safety glasses only
B.Dust mask only
C.Chemical-resistant gloves
D.Steel-toed boots
Explanation: Chemical-resistant gloves should always be worn when handling concentrated pesticides during mixing and loading operations unless the label specifically states otherwise. Gloves protect against dermal exposure, which is the primary route of exposure for applicators. The label will specify the type of gloves required.

About the IA Pesticide Applicator Exam

Iowa's standard commercial pesticide applicator route requires passing a 50-question Core exam and a 35-question category exam, while Handler and aerial routes use different exams. Updated for 2026 with Category 12 Soil Fumigation and revised Handler requirements under Iowa Code Chapter 206.

Exam sponsor: Iowa Department of Agriculture and Land Stewardship (IDALS). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Question count not published by the exam provider

Time Limit

No fixed standard-exam duration published; full aerial is limited to 120 minutes

Passing Score

80% commercial; 70% private

Exam / Certification Fees

Online $28 per exam; IDALS in-person free when offered; college-site fee varies; commercial certification $75/3 years

Exam sponsor website

Reported exam pass rate: Not published. IDALS does not publish a current first-time pass-rate percentage. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Not published by IDALS

Iowa Laws & Regulations

Iowa Code Chapter 206, IDALS rules, FIFRA, certification categories, 2026 updates

Not published by IDALS

Pesticide Safety & PPE

Toxicity, exposure routes, PPE requirements, WPS, emergency response

Not published by IDALS

Environmental Protection

Groundwater protection, drift management, endangered species, storage and disposal

Not published by IDALS

Application Methods & Calibration

Equipment calibration, nozzle selection, IPM principles, resistance management

Not published by IDALS

Label Compliance & Record-Keeping

Label interpretation, signal words, record-keeping requirements, RUP regulations

Preparing for the IA Pesticide Applicator Exam

What You Need to Know

  • Passing score: 80% commercial; 70% private
  • Assessment: Question count not published by the exam provider
  • Time limit: No fixed standard-exam duration published; full aerial is limited to 120 minutes
  • Exam / certification fees: Online $28 per exam; IDALS in-person free when offered; college-site fee varies; commercial certification $75/3 years Official sources

Using Our Practice Resources

  • Work through all 312 available questions
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Frequently Asked Questions

What exams do I need to pass for Iowa commercial pesticide applicator certification?

The standard route is the 50-question Core plus a 35-question category exam. Handler, full aerial, and reciprocal aerial routes use different exam combinations; all commercial routes require 80%.

What changed in Iowa pesticide applicator rules for 2026?

Key 2026 changes include: minimum age 18 for RUP application, new Category 12 Soil Fumigation, revised Certified Handler requirements (must pass Core exam), and elimination of unproctored private applicator exams.

How often must Iowa commercial applicators recertify?

In the third year, retake the required exam or complete two hours of approved continuing instruction in each year of the three-year cycle. Course credit does not carry between years.