Termite + WDO Exam Study Guide Quizzes &
Answers | 100% Correct 2025.
This Termite & WDO (Wood Destroying Organism) Exam tests knowledge of identifying, inspecting for,
and treating pests like termites, carpenter ants, powder post beetles, and fungi that damage wood
structures, covering inspection techniques (visual, probing), different WDO types (subterranean vs.
drywood), treatment methods (chemical, baiting), and regulatory standards for homeowner reports
(Section 1/2 findings), crucial for property sales and preventing costly structural damage.
Terms in this set (272)
Which type of termite is this? Reticulitermes
(Rhinotermidae - subterranean - native)
*only 2 sclerotized veins on wings, web-like
For soldiers -
*pronotum same size or smaller than head
*rectangle, block head shape
*smooth teeth on mandible (1 or less)
Which caste of termites is this in? Soldier
sclerotized head
*have mandible for defense, wingless, blind,
,Which beetle leaves small round exit holes Powderpost beetle
in hardwood?
Brown rot
What was this damage caused by?
Ambrosia beetle
What caused these stains?
Does this insect need to be reported on the NO
WDO form?
old house borer
Note - large oval exit hole
What caused this damage? Cerambycidae beetle (longhorned
beetle) aka
, What type of slab is this? Floating slab (example - townhouses)
slab "floats" on soil - poured after footer/foundation
wall
Which type of slab is more stable Monolithic slab
against sink holes? Note - they are *slab + footer poured at
SAME time also more stable in loose soils.
What must you have signed by theForm 13671 - Consumer consent form
customer BEFORE entering into a contract on a property that is currently under an
active WDO warranty?
Study MATH + LABEL questions too!
What is a WDO? What are the 4Wood destroying organism = an arthropod OR categories of
WDOs defined by statefungus that damages and can reinfest seasoned
statutes?wood in a structure
(Termites, powderpost beetles, old house borers,
wood-decaying fungi)
, Which wood-infesting pest usuallyOld House borer (a longhorned leaves
heavy damage in finishedbeetle/cerambycid)
SOFTwood with the ONLY external evidence being 1-2 oval exit holes? Typical
control is fumigation for heavy infestations.
Which wood-infesting pest is found in Bark beetles
rough, bark-covered wood leaving small exit
holes 1/8 inch diameter with inner side of
bark/wood surface "engraved" with galleries
(NOT extensive tunnels)? The damage is old,
will not reinfest dried wood, and NO control
is required. The powder is the same color as
the bark.
Which wood-infesting pest leavesAmbrosia beetles pinholes
and slender galleries in sapwood/southern yellow pine,
leaving burrows and area around them stained dark by
the action of fungi? The damage is old, will not reinfest dried
wood, and control may not be required.
Which wood-infesting pest leavesSubterranean
termites NO openings (or VERY few + sealed over), has extensive
galleries running lengthwise in springwood which are packed with
hard/masticlike frass? They may infest old cellulose objects
near/in contact with soil.
Answers | 100% Correct 2025.
This Termite & WDO (Wood Destroying Organism) Exam tests knowledge of identifying, inspecting for,
and treating pests like termites, carpenter ants, powder post beetles, and fungi that damage wood
structures, covering inspection techniques (visual, probing), different WDO types (subterranean vs.
drywood), treatment methods (chemical, baiting), and regulatory standards for homeowner reports
(Section 1/2 findings), crucial for property sales and preventing costly structural damage.
Terms in this set (272)
Which type of termite is this? Reticulitermes
(Rhinotermidae - subterranean - native)
*only 2 sclerotized veins on wings, web-like
For soldiers -
*pronotum same size or smaller than head
*rectangle, block head shape
*smooth teeth on mandible (1 or less)
Which caste of termites is this in? Soldier
sclerotized head
*have mandible for defense, wingless, blind,
,Which beetle leaves small round exit holes Powderpost beetle
in hardwood?
Brown rot
What was this damage caused by?
Ambrosia beetle
What caused these stains?
Does this insect need to be reported on the NO
WDO form?
old house borer
Note - large oval exit hole
What caused this damage? Cerambycidae beetle (longhorned
beetle) aka
, What type of slab is this? Floating slab (example - townhouses)
slab "floats" on soil - poured after footer/foundation
wall
Which type of slab is more stable Monolithic slab
against sink holes? Note - they are *slab + footer poured at
SAME time also more stable in loose soils.
What must you have signed by theForm 13671 - Consumer consent form
customer BEFORE entering into a contract on a property that is currently under an
active WDO warranty?
Study MATH + LABEL questions too!
What is a WDO? What are the 4Wood destroying organism = an arthropod OR categories of
WDOs defined by statefungus that damages and can reinfest seasoned
statutes?wood in a structure
(Termites, powderpost beetles, old house borers,
wood-decaying fungi)
, Which wood-infesting pest usuallyOld House borer (a longhorned leaves
heavy damage in finishedbeetle/cerambycid)
SOFTwood with the ONLY external evidence being 1-2 oval exit holes? Typical
control is fumigation for heavy infestations.
Which wood-infesting pest is found in Bark beetles
rough, bark-covered wood leaving small exit
holes 1/8 inch diameter with inner side of
bark/wood surface "engraved" with galleries
(NOT extensive tunnels)? The damage is old,
will not reinfest dried wood, and NO control
is required. The powder is the same color as
the bark.
Which wood-infesting pest leavesAmbrosia beetles pinholes
and slender galleries in sapwood/southern yellow pine,
leaving burrows and area around them stained dark by
the action of fungi? The damage is old, will not reinfest dried
wood, and control may not be required.
Which wood-infesting pest leavesSubterranean
termites NO openings (or VERY few + sealed over), has extensive
galleries running lengthwise in springwood which are packed with
hard/masticlike frass? They may infest old cellulose objects
near/in contact with soil.
