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PCO WDO TERMITE Overview and Subterranean Termites – Rhinotermidae exam questions and answers
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PCO WDO TERMITE Overview and Subterranean Termites – Rhinotermidae exam questions and answers
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PCO WDO/ TERMITE:Overview and Subterranean
Termites – Rhinotermidae
exam questions and answers
Subterranean termites - Rhinotermidae (Smooth Mandible)
1. eastern subterranean termite - Reticulitermes flavipes
2. Southern subterranean termite - Reticulitermes virginicus
3. Light southern subterranean termite - Reticulitermes hageni
4. Florida "dampwood" termite - Prorhinotermes simplex
5. West Indian subterranean termite - Heterotermes sp.
6. Formosan subterranean termite - Coptotermes formosanus
7. Asian subterranean termite - Coptotermes gestroi
8. Florida darkwinged subterranean termite - Amitermes floridensis
9. Southeastern subterranean termite - Reticulitermes nelsonae
Drywood/ powderpost termites - Kalotermitidae (rough mandible)
1. Calcaritermes nearcticus (no common name)
2. West Indian powderpost termite - Cryptotermes brevis
3. Cryptotermes cavifrons ( no common name)
4. Incisitermes milleri (no common name)
5. Western drywood termite - Incisitermes minor
6. Incisitermes schwartzi (no common name)
7. Southeastern drywood termite - Incisitermes snyderi
8. Kalotermes approximate (no common name)
Dampwood termites - Kalotermitidae
1. Southern dampwood termite - Neotermes castaneus
2. Neotermes luykxi (no common name)
3. Neotermes jouteli (no common name)
Arboreal/ subterranean termite - Termitidae
1. Conehead termite (aka tree termite ) - Nasutitermes corniger
Subterranean termites (smooth mandible) - overview
,Normally nest in soil, forage in soil and sometimes above ground,
and usually require constant contact with soil to obtain water. Some
species can survive in certain conditions away from soil, as long as a
source of moisture is available. Over 3,000 species described - less
than 200 are structural or crop pests. Soil protects the colony from
temperature extremes.Construct shelter tubes for 2 reasons: retain
moisture and promote growth of microorganisms.
Most common an widely distributed termite in North America?
subterranean termites
How do subterranean termites combat moisture loss?
Construct shelter tubes when they pass over an exposed area.
Tubes also promote growth of microorganisms.
Why free-standing shelter tubes for subterranean termites?
Erected upwards from the soil where termites are seeking additional
wood/cellulose. Usually occurs after the colony is well-established
and feeding has progressed some distance from the shelter tube.
How the colony gets necessary moisture without going great
distances.
Subterranean termites prefer what soil type?
Sandy over clay. They will survive in many soil types.
Types of subterranean termites in a colony*
workers- worker caste - no wings*
soldiers - soldier caste - no wings*
reproductives - alate (swarmer) caste
*supplemental reproductives
*no pseudergates present in sub colony
Colony structure of subterranean termites
Not like other social insects. Social groups both male and female.
Mobile nest site located near food - likely some dead wood they
excavate and inhabit.
Subterranean termite - swarming*
* eastern subs - spring
females and males pair off and begin a new nest usually by
burrowing under trees or decaying wood, or in soil that is in contact
with wood. They rarely use tree crevices to initiate a colony.
, Subterranean termites- food sources
eat anything made of or containing cellulose. Mostly dead wood and
wood products. Can damage rigid foam board insulation and
sheetrock.
Subterranean termite wood preference
soft, spring growth wood - but no wood is immune to attack
What makes up a subterranean termite shelter tube?
particles of soil, wood, other debris - held together with gluelike
fecal material, saliva, and other secretions.
subterranean termites and temperature
will not forage for food when soil temps are too hot or too cold.
Adjust their activity and migrate deeper in the soil. Seek thermal
"shadows" cast by vegetation and structures. Can remain active in
cold weather if the structure they inhabit is heated.
Subterranean termite digestive system
- bite slivers of wood with mandibles.
- same process as other termites thru esophagus
- broken down wood goes mid gut to hind gut and for subs then into
a fermentation chamber PROTOZOA IN GUT
Drywood termites - overview (rough mandible)
Live within dried wood, do not forage in soil, get all their moisture
from the wood (do not need soil contact). They are economically
important in Florida. Are above ground. Exposed to temperature
extremes. They developed behaviors that protect them from drying
out, unlike subs. They have six dimple sided pellets.
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