Commercial Pesticide Applicator Category 7A
Exam | 2025/2026 Edition | Verified Questions
with 100% Correct Answers
Iowa Commercial Pesticide Applicator Certification Category 7A | General & Household Pest
Management Topics: Insects, Rodents, Stored-product, Structural Pests | Real Exam-Style Q&A
| Expert-Verified & Graded A+
Introduction
This complete answer set includes the General & Household Pest Management Category 7A
questions used in the Iowa Commercial Pesticide Applicator Exam (2025/2026). Content
reflects officially tested topics such as insect biology, cockroach and termite control,
stored-product pest identification, rodenticides, integrated pest management (IPM) strategies,
and structural pest regulations. All answers are verified and aligned with real exam standards
for review or post-exam confirmation.
Answer Format
All correct responses are clearly marked in bold and green, with brief explanatory notes where
helpful to reinforce critical concepts and retention.
Question 1
What is the primary stage of an insect’s life cycle that is most vulnerable to control measures?
A) Egg
B) Larva
C) Pupa
D) Adult
B) Larva
Rationale: Larvae are actively feeding and more susceptible to pesticides.
Question 2
Which pest is commonly found infesting stored grains?
A) Termite
B) Indian meal moth
C) Cockroach
D) Mouse
B) Indian meal moth
Rationale: Known for damaging stored food products.
,Question 3
What is the purpose of integrated pest management (IPM) in households?
A) Eliminate all pests immediately
B) Use multiple strategies to manage pests sustainably
C) Rely solely on chemical controls
D) Ignore monitoring
B) Use multiple strategies to manage pests sustainably
Rationale: Combines prevention, monitoring, and control.
Question 4
Which rodenticide acts as an anticoagulant?
A) Boric acid
B) Warfarin
C) Pyrethrin
D) DEET
B) Warfarin
Rationale: Prevents blood clotting in rodents.
Question 5
What is a common sign of termite activity in a structure?
A) Webbing
B) Mud tubes
C) Droppings
D) Nesting material
B) Mud tubes
Rationale: Termites build these for protection and travel.
Question 6
Which pest control method involves sealing entry points?
A) Chemical application
B) Exclusion
C) Trapping
D) Baiting
B) Exclusion
Rationale: Prevents pest entry into buildings.
Question 7
What is the life stage of a cockroach that is most resistant to pesticides?
A) Egg
B) Nymph
C) Adult
D) Larva
A) Egg
Rationale: Eggs are protected within oothecae.
Question 8
Which stored-product pest is known for infesting flour?
, A) Silverfish
B) Confused flour beetle
C) Ant
D) Rat
B) Confused flour beetle
Rationale: Commonly found in grain-based products.
Question 9
What is the primary mode of action for pyrethroid insecticides?
A) Stomach poison
B) Contact and nerve disruptor
C) Growth regulator
D) Repellent
B) Contact and nerve disruptor
Rationale: Affects insect nervous systems on contact.
Question 10
Which structural pest is known for damaging wood?
A) Cockroach
B) Termite
C) Spider
D) Centipede
B) Termite
Rationale: Feeds on cellulose in wood.
Question 11
What is a key component of an IPM plan for rodents?
A) Random baiting
B) Sanitation and exclusion
C) Overuse of traps
D) Ignoring harborage
B) Sanitation and exclusion
Rationale: Reduces food and entry points.
Question 12
Which insecticide is commonly used as a residual treatment?
A) Fogger
B) Cyfluthrin
C) Dust
D) Bait
B) Cyfluthrin
Rationale: Provides long-lasting surface control.
Question 13
What is a sign of a carpenter ant infestation?
A) Mud tubes
B) Sawdust-like frass