termite and insect infestation
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STRUCTURAL PEST CONTROL(Termite and Insect Infestation)
By: Karlo Bauzon Arjay Garlan
Common Wood Destroying Insects
Termites
Carpenter Ants
Powderpost Beetles
Longhorn Beetles
Flatheaded Borers
Wood-boring Weevils
Termites
Subterranean
Dampwood
Drywood
Major destroyers of wood and wood product materials. Normally associated with buildings, but can also infest wood that has been stored for some time. There are three basic kinds of termites:
Isoptera(termites)
[social insects, winged reproductives with both wings same size and membranous; straight or curved antennae consists of beadlike segments; abdomen broadly joined to thorax; no cerci; chewing mouthparts]
Ant or Termite?
Figure 3-5
Termites are sometimes called “white ants” because they are ant-like in form. Termites differ in antenna form and having a broad waist.
Subterranean termite colonies live in the soil from which they construct exploratory tubes in search of wood.
Termite Swarming is usually the first evidence of an infestation noticed by most people.
Drywood Termites Can live in dry, sound wood
Usually tropical and subtropical
Kick out characteristic fecal pellets
Subterranean (left), Drywood (right)
Drywood Termite Fecal Pellets
Carpenter Ants
Camponotus
Figure 3-9
Carpenter Ants build nests in wood, they don’t eat it!
Carpenter Ant Damage Carpenter ants need
water
Usually build nests in damp or partially rotted wood, but can extend their nests into sound wood
Keep lumber dry and properly stacked.
Powder Post BeetlesThree Families
Lyctids Bostrichids Anobiids
The main sign of powderpost beetles is powdery sawdust.
Powderpost beetles turn wood to dust!
Lyctid powderpost beetles:
Attack sapwoodAttack hardwoods only, rarely mapleRequire 8% to 32% moisture
Anobiid powderpost beetles:
Prefer old woods, 10-20 years old!Attack hardwoods and softwoods including mapleRequire 13% to 30% moisture
Wood-boring weevil, Hexarthum:
Frass looks like powderpost beetlesAttack hardwoods, including mapleRequire high wood moistures, often wet!
Wood-boring Beetle Management
Detect early! (regularly inspect - powder)
Keep lumber at less than 5% moisture
Keep lumber off of moist floors or ground
Resaw to remove sapwood
Don’t purchase infested lumber & destroy lumber that becomes infested
Fumigate high cost lumber (professionals only!)
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BRANCH /LICENSE DIFFERENCES
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WHAT IS STRUCTURAL PEST CONTROL ?
Definition: Contain and control the condition of
household and wood destroying pests which invade households, other structures and their contents
Conduct Inspections Identify infestations
write reports, make recommendations, submit bids and estimates
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LICENSE CLASSIFICATION
Branch I - Fumigation Branch II - General Pest Branch III - Termite Control
The SPCB issues licenses in three specialties or branches….
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LICENSE CLASSIFICATION Branch I - Fumigation
Operator Field Representative
Branch II - General Pest Operator Field Representative Applicator
Branch III - Termite Control Operator Field Representative Applicator
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BRANCH I -FUMIGATION Use of lethal gases to control:
Termites Wood boring insects Other household pests
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BRANCH I -FUMIGATION Two most commonly
used fumigants :
Surfuryl Flouride (Vikane® )
Methyl Bromide
Chloropicrin used as a warning agent
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BRANCH II General Pest Control
Household, Industrial, Institutional and Commercial (excluding fumigants, termiticides and wood preservatives)
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BRANCH II General Pest Control
Typical pests controlled include: General Pests
Ants, Earwigs, Crickets
Noxious pests Spiders, Fleas, Ticks
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BRANCH II General Pest Control
Typical pests controlled include (cont.): Stored products pests
Indian Meal Moth, Cigarette Beetle, Saw-toothed Grain Beetle
Fabric pests Clothes moth, Carpet Beetle
Structural Vertebrate Pests
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BRANCH III Termite Control
Inspect for wood destroying pests and organisms in: Homes Commercial structures and for real estate transactions
Make recommendations Perform structural repairs Apply termiticides and wood
preservatives
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LICENSES The SPCB registers
companies and licenses people.
Licensed people include: Operator Field Representative Applicator (Branch II
and III only)
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An operator may: own or qualify a company identify pests negotiate contracts apply pesticide
Operator LICENSES
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A licensed Field Representative may: identify pests negotiate contract apply pesticide
Field RepresentativeLICENSES
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LICENSES
A licensed Applicator may: Apply pesticides in
Branch II & III Fumigants can only be
applied by Operators and Field Representative.
Applicator
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UNLICENSED ACTIVITIES Performing work
beyond the scope of the license
Performing work without a license
Applying pesticides outside the scope of structural use