Kansas IPM Education October 2005 Termite Termite Treatments Treatments Dr. Richard Houseman Dr. Richard Houseman Assistant Professor of Entomology Assistant Professor of Entomology Division of Plant Sciences Division of Plant Sciences University of Missouri University of Missouri
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Kansas IPM Education October 2005 Termite Treatments Termite Treatments Dr. Richard Houseman Assistant Professor of Entomology Division of Plant Sciences.
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Kansas IPM EducationOctober 2005
Termite TreatmentsTermite Treatments
Dr. Richard HousemanDr. Richard Houseman
Assistant Professor of EntomologyAssistant Professor of EntomologyDivision of Plant SciencesDivision of Plant Sciences
University of MissouriUniversity of Missouri
Kansas IPM EducationOctober 2005
Termite Control Tactics
• Possible Strategies– Physical– Cultural– Biological– Chemical
• Wood Treatments• Soil Barriers• Baits
Kansas IPM EducationOctober 2005
Cultural Controls
• Avoid wood-to-soil contact– Log piles against structures– Construction debris– Backfill/front stoop shouldn’t contain wood
• Moisture management– Drainage away from foundation– Gutters, downspouts well-maintained
Kansas IPM EducationOctober 2005
Physical Control
• Barriers to tunneling– Sand, basalt, granite, glass, etc.
– Grain size of 2.0-2.8 mm.
– 20cm thick.
– Stainless Steel Mesh• Termi-Mesh
– Thick rubber mats
• Pre-construction only
Kansas IPM EducationOctober 2005
Biological Controls
• Nematodes (Steinernema)
– Not effective against subterranean termites in field trials
• Fungi (Metarhizium)
– More successful than nematodes– Bio-Blast (Paragon Professional) – applied as a dust/WP
• Bacteria (Bacillus)– Has been studied, but not currently used
Kansas IPM EducationOctober 2005
Chemical Controls
• Wood Treatments– Reduce feeding on structural wood– Pressure treatments or spray-on
• Exterior perimeter – MUST Trench/rod along foundation wall– MUST Drill/rod adjoining slabs/patios
• PLUS– MUST treat active sites indoors (+2ft in at least two
directions).– MAY treat susceptible areas
• Original label directions for spot/partial/full treatments still valid
Kansas IPM EducationOctober 2005
A
Termidor PerimeterPLUS label
A
Kansas IPM EducationOctober 2005
Chemical Controls
• Managing Reticulitermes Using Baits – Just ‘killing the queen’ doesn’t work– Centers of activity change in habitat– Splitting colonies can occur using soil
termiticides– Termite baits seek to address colony
networks
Kansas IPM EducationOctober 2005
Kansas IPM EducationOctober 2005
Why Baiting?
• To reduce the number of subterranean termites in the vicinity of a structure.
Kansas IPM EducationOctober 2005
Baiting Methods
Four basic methods have been examined:1. Monitoring stations followed by consumable
bait when termites are located
2. Consumable bait in stations prior to detection
3. Consumable bait at the site of infestation
4. Trapping followed by groomable coating applications and release back into station
Kansas IPM EducationOctober 2005
Typical Baiting Sequence
In: Termites: Biology and Pest Management MJ Pearce. 1997.
Kansas IPM EducationOctober 2005
Baiting Strategies
• Areas where foraging is likely– Temperature and moisture consistent– Food sources nearby– Active sites are best
• Do not want to disrupt foraging/feeding
• Distance between stations– Clustered stations
Kansas IPM EducationOctober 2005
Baiting Systems
• Design considerations– Disturbance at station– Monitor integrity/acceptance– Type of active ingredient
• Palatability of active ingredient• Metabolism of active ingredient