Pest Control Technician Training
Texas WDI Exam Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What does WDI stand for in pest control?
✔✔Wood Destroying Insects
What is the primary insect responsible for structural damage to wooden buildings in Texas?
✔✔Termites
Which type of termite is most common in Texas homes?
✔✔Subterranean termite
What is a key sign of termite infestation in a wooden structure?
✔✔Mud tubes along walls or foundation
Why is moisture a critical factor for termite activity?
✔✔Termites require moisture to survive and build colonies
What is the first step in a WDI inspection?
✔✔Visual inspection of accessible wood structures
1
,How often should a WDI inspection be performed for residential properties?
✔✔Annually
What type of equipment is essential for detecting termites in walls?
✔✔Moisture meter and probing tools
Which pest is commonly mistaken for termites due to similar damage patterns?
✔✔Carpenter ants
What is frass in termite infestations?
✔✔Termite droppings that look like small wood pellets
Which preventive measure reduces termite risk around a home?
✔✔Removing wood debris and maintaining proper drainage
What is a common chemical treatment used for termite control?
✔✔Liquid termiticide applied to soil around the structure
How deep should trenching be for a soil-applied termiticide barrier?
✔✔6 to 12 inches around the foundation perimeter
What is baiting in termite control?
2
, ✔✔Using cellulose-based stations with slow-acting insecticide to eliminate colonies
Which structural material is resistant to termite damage?
✔✔Concrete and steel
What is the difference between drywood and subterranean termites?
✔✔Drywood termites live inside the wood and don’t require soil contact
What is a key indicator of drywood termite infestation?
✔✔Small piles of frass near wood exit holes
How can carpenter ants damage a structure?
✔✔Excavating wood to build nests without consuming it
Which part of a house is most vulnerable to termite infestation?
✔✔Wood in contact with soil or moisture-prone areas
Why are attics inspected during a WDI exam?
✔✔To check for moisture damage and potential termite or ant activity
What is a common entry point for termites in homes?
✔✔Cracks in foundation or gaps around plumbing
3
Texas WDI Exam Questions and
Answers | Latest Version | 2025/2026 |
Correct & Verified
What does WDI stand for in pest control?
✔✔Wood Destroying Insects
What is the primary insect responsible for structural damage to wooden buildings in Texas?
✔✔Termites
Which type of termite is most common in Texas homes?
✔✔Subterranean termite
What is a key sign of termite infestation in a wooden structure?
✔✔Mud tubes along walls or foundation
Why is moisture a critical factor for termite activity?
✔✔Termites require moisture to survive and build colonies
What is the first step in a WDI inspection?
✔✔Visual inspection of accessible wood structures
1
,How often should a WDI inspection be performed for residential properties?
✔✔Annually
What type of equipment is essential for detecting termites in walls?
✔✔Moisture meter and probing tools
Which pest is commonly mistaken for termites due to similar damage patterns?
✔✔Carpenter ants
What is frass in termite infestations?
✔✔Termite droppings that look like small wood pellets
Which preventive measure reduces termite risk around a home?
✔✔Removing wood debris and maintaining proper drainage
What is a common chemical treatment used for termite control?
✔✔Liquid termiticide applied to soil around the structure
How deep should trenching be for a soil-applied termiticide barrier?
✔✔6 to 12 inches around the foundation perimeter
What is baiting in termite control?
2
, ✔✔Using cellulose-based stations with slow-acting insecticide to eliminate colonies
Which structural material is resistant to termite damage?
✔✔Concrete and steel
What is the difference between drywood and subterranean termites?
✔✔Drywood termites live inside the wood and don’t require soil contact
What is a key indicator of drywood termite infestation?
✔✔Small piles of frass near wood exit holes
How can carpenter ants damage a structure?
✔✔Excavating wood to build nests without consuming it
Which part of a house is most vulnerable to termite infestation?
✔✔Wood in contact with soil or moisture-prone areas
Why are attics inspected during a WDI exam?
✔✔To check for moisture damage and potential termite or ant activity
What is a common entry point for termites in homes?
✔✔Cracks in foundation or gaps around plumbing
3
