Wood Destroying Insects Potentially Important to a Violin Maker
This presentation is the property of its rightful owner.
Sponsored Links
1 / 19

Wood Destroying Insects Potentially Important to a Violin Maker PowerPoint PPT Presentation


  • 53 Views
  • Uploaded on
  • Presentation posted in: General

Wood Destroying Insects Potentially Important to a Violin Maker. Ben Stinner, Ph.D. The Ohio State University, Ohio Agricultural Research & Development Center (OARDC) Wooster, OH. [From materials developed by D. J. Shetlar, OSU Extension, October ‘02].

Download Presentation

Wood Destroying Insects Potentially Important to a Violin Maker

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Wood destroying insects potentially important to a violin maker

Wood Destroying Insects Potentially Important to a Violin Maker

Ben Stinner, Ph.D.

The Ohio State University,

Ohio Agricultural Research &

Development Center (OARDC)

Wooster, OH

[From materials developed by D. J. Shetlar, OSU Extension, October ‘02]


Wood destroying insects potentially important to a violin maker

Common Wood Destroying Insects

  • Termites

  • Carpenter Ants

  • Powderpost Beetles

  • Longhorn Beetles

  • Flatheaded Borers

  • Wood-boring Weevils


Wood destroying insects potentially important to a violin maker

Termites

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:

  • Subterranean

  • Dampwood

  • Drywood


Wood destroying insects potentially important to a violin maker

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

Termites are sometimes called “white ants” because they are ant-like in form. Termites differ in antenna form and having a broad waist.

Ant or Termite?

Figure 3-5


Wood destroying insects potentially important to a violin maker

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

Termite Swarming is usually the first evidence of an infestation noticed by most people.


Drywood termites

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

Drywood Termite Fecal Pellets


Carpenter ants

Carpenter Ants

Camponotus

Figure 3-9


Carpenter ants build nests in wood they don t eat it

Carpenter Ants build nests in wood, they don’t eat it!


Carpenter ant damage

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 beetles three families

Powder Post BeetlesThree Families

Lyctids Bostrichids Anobiids


Wood destroying insects potentially important to a violin maker

The main sign of powderpost beetles is powdery sawdust.


Wood destroying insects potentially important to a violin maker

Powderpost beetles turn wood to dust!


Wood destroying insects potentially important to a violin maker

  • Lyctid powderpost beetles:

  • Attack sapwood

  • Attack hardwoods only, rarely maple

  • Require 8% to 32% moisture


Wood destroying insects potentially important to a violin maker

  • Anobiid powderpost beetles:

  • Prefer old woods, 10-20 years old!

  • Attack hardwoods and softwoods including maple

  • Require 13% to 30% moisture


Wood destroying insects potentially important to a violin maker

  • Wood-boring weevil, Hexarthum:

  • Frass looks like powderpost beetles

  • Attack hardwoods, including maple

  • Require high wood moistures, often wet!


Wood destroying insects potentially important to a violin maker

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!)


  • Login