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Bed Bug Detection and Management In Schools Dr
Bed Bug Detection and Management In Schools Dr. Susan Jones Professor of Entomology
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Bed Bugs In Schools BE PROACTIVE!!!!
Educate the school community on bed bugs Promptly respond to a bed bug sighting
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Presentation Outline Myths Habits Prevention Detection methods
Treatment options
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Worldwide Resurgence of Bed Bugs Since
Late 1990s SPAIN CANADA ENGLAND AUSTRALIA 4
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CDC & EPA Joint Statement
August 2010 CDC & EPA Joint Statement Bed bugs are a pest of significant public health importance!
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The Most Bed Bug-Infested Cities in the U.S.
2012 2013 January 2013 July 2013
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Not caused by bad housekeeping!! BED BUGS CAN HAPPEN TO ANYONE!
The Common Bed Bug (Cimex lectularius) Insects (true bugs) Temporary external parasites Feed only on blood Prefer to feed on humans Alternate hosts: rodents, bats, birds, pets (cats, dogs, etc.) Not caused by bad housekeeping!! BED BUGS CAN HAPPEN TO ANYONE!
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BED BUG HABITS Cannot fly Can walk very fast
Typically hide during the day in dark, protected sites (esp. cracks & crevices) Prefer fabric, wood, and paper surfaces Can cling tightly to surfaces
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Bed bugs are very good hitchhikers!
Clothing Backpacks Purses Books Other items carried into schools
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--Bed Bug Hitchhikers—
in shoe tread
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--Bed Bug Hitchhikers—
in walker & wheelchair Photos courtesy of General Pest Control Co.
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How do bed bugs travel? Hitchhiking Walking
down a hallway after dropping off an item from an infested room to new territory from one room to another via pipes, telephone, cable or electrical wires
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Bed Bugs In Schools Brought in by students, staff, visitors, etc.
Bugs crawl into the school’s chairs, carpeting, equipment, etc. A single bed bug does not warrant panic or school closure!
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Control of Bed Bugs In Schools
Early identification is very important Staff should be trained re. what to look for Maintenance and cleaning crews should be on the lookout for telltale signs of bed bugs Capture a bug for positive identification
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INTEGRATED PEST MANAGEMENT (IPM) FOR BED BUGS:
Correctly identify the pest + Conduct a thorough inspection Use sanitation measures Apply insecticides to targeted sites
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Takes repeated blood meals; Takes a blood meal then molts
LIFE CYCLE OF THE BED BUG (Cimex lectularius) Adult (male & female) ~0.26 inch (6.5 mm) long Takes repeated blood meals; life span ~1 to 1½ yrs 4th stage nymph ~0.12 inch (3 mm) long Takes a blood meal then molts 2nd stage nymph ~0.08 inch (2 mm) long Takes a blood meal then molts 5th stage nymph ~0.18 inch (4.5 mm) long Egg ~0.04 inch (1 mm) long Glued in place 3rd stage nymph ~0.1 inch (2.5 mm) long Note: These images depict bugs with a partly digested blood meal. 1st stage nymph ~0.06 inch (1.5 mm) long © The Ohio State University Dr. Susan C. Jones & Benjamin R. Diehl
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--IDENTIFICATION-- Shape and Size
Beak-like mouthparts Oval shaped Body flattened (unfed) to swollen (recently fed) Adults: ~1/4 – 3/8 inch long Youngest nymphs (immature bugs) are tiny (<<1/10 inch long)
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--IDENTIFICATION-- Color
Youngest nymphs: almost colorless (unfed) crimson (recently fed) Older nymphs and adults: various shades of brown (unfed) reddish brown (fed)
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Adult Bed Bugs Female Male
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Bed Bug (Cimex lectularius) Bat Bug (Cimex adjunctus) eye
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IDENTIFICATION SERVICES
Ohio State University Pest Diagnostic Clinic Fee for identification services ($20 per insect sample) ID wide variety of insects, arthropods, plant diseases, etc. Online submission form:
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Recognizing Bed Bug Bites
Skin reactions (avg = 7 of 10 people) Redness Welts Itching Resemble bites from other insects & arthropods Typically no red spot at the center (such as with fleas and black flies) Typically occur on exposed skin Neck and face; shoulders and arms; back; etc. Rarely occur on the palms or soles (such as with scabies mites) Often occur in rows or groups Confirmation based on finding bed bug evidence
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Control of Bed Bugs In Schools
Prompt action is very important for bed bugs!
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Downloadable Notification Letter For Adapting To Your School
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Control of Bed Bugs In Schools
If a bed bug is positively identified… Don’t panic. It’s not necessarily a sign of a bed bug infestation. A pest control professional should conduct a thorough bed bug inspection.
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Recognize the telltale signs of bed bugs!
Black fecal spots Shed skins & eggshells Live bed bugs (nymphs & adults) Blood stains from crushed bugs Welts on exposed skin Distinctive “buggy” odor (in severe infestations)
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Bed Bugs Behind A Hanging Picture
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Tell-tale Signs of Bed Bugs in Furniture
bed frame
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Tell-tale Signs of Bed Bugs Behind Baseboards
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Tell-tale Signs of Bed Bugs in Electrical Outlets
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--Bed Bug Inspection--
Bed Bug-Sniffing Dogs Dog and handler should be specially trained and certified Dog requires daily training, too The dog’s handler is important Can have high accuracy Enable rapid inspections Expensive
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Rutgers University Field Study ‘Detection Tools and Techniques’
Much variability among canine detection firms. Can be a useful tool in large-scale inspections. Rutgers University Field Study August 2011 Canine team performance (7 firms; 24 apts.) Average Range Inspection time 150 minutes min. Cost $750 $500-1,000 Detection rate 43% 11-83% False positive rate (signaling bed bugs that weren’t there) 0-38% ‘Detection Tools and Techniques’ By: Changlu Wang and Richard Cooper
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Overview of the Verifi™ Bed Bug Detector Components
--Active Monitoring Device-- PITFALL Overview of the Verifi™ Bed Bug Detector Components 3 in CO2 BOOSTER PACK (lasts for 24 hours) A 4 in LURE (lasts for 90 days) --Pheromone chamber (mimics bed bug aggregation scent) --Kairomone chamber (mimics host odor) B 5 in PITFALL C HARBORAGE D front view (cut away) back view ADHESIVE E
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All Stages Of Bed Bugs Were Captured In The Verifi™ Detector Pitfall.
— OSU Research Study — All Stages Of Bed Bugs Were Captured In The Verifi™ Detector Pitfall.
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Some Bed Bugs Were Found On The Verifi™ Detector Harborage.
— OSU Research Study — Some Bed Bugs Were Found On The Verifi™ Detector Harborage. 4 eggs 1 adult female
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Comparison of Erroneous Results with
— OSU Research Study — Comparison of Erroneous Results with Canine Team, Dry Ice Trap, and Verifi™ Detector
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--Passive Monitoring Devices--
Climbup™ Interceptor Sticky Traps Bed Bug Detector Trap
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Control of Bed Bugs In Schools
If numerous bed bugs are identified…
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Contact a professional pest control company to treat for bed bugs
ODA web site lists licensed pest mgt. companies and applicators OH Dept. of Agriculture Pesticide Regulation Section ;
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(Typically are used to supplement additional treatment measures.)
Sanitation Measures (Typically are used to supplement additional treatment measures.)
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Some measures to help reduce the number of bed bugs:
Use a heavy-duty vacuum cleaner. Use a high efficiency particulate air (HEPA) filtered vacuum cleaner. It is useful to reduce the number of bed bugs. (A scraping action with the attachment is needed to remove eggs.) It is useful for cracks & crevices. Dispose of the vacuum bag afterwards. Remember that an on-site vacuum can serve as a harborage for bed bugs.
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Vacuuming to contain bed bugs
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Some measures to help reduce the number of bed bugs:
Steaming Photo courtesy of General Pest Control Co. Commercial steam unit preferable Dry steam preferable (less moisture) Surface temperature should be ~176ºF (80ºC) Steam immediately kills bed bugs & eggs Requires working slowly and thoroughly Steam can penetrate many fabrics & padding Some materials too thick for heat transfer Prolonged drying time (use fan, dehumidifier, natural ventilation) No residual protection
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Some measures to help reduce the number of bed bugs:
Launder bedding, clothing, etc.! Wash in hot water (>120ºF, [50ºC]) Drier on hot setting (>30 minutes)
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Treatment Options Heat treatment (whole structure, container)
Cold (usefulness is limited) Insecticides Residual products (dust, liquid, aerosols) Fumigation (sulfuryl fluoride)
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Containerized Heat Treatment
≥120º F for several hours Portable Thermal Chamber
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Whole Room Heat Treatment
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Cold Treatment
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What shouldn’t you do for a bed bug problem?
“Bug Bombs” (“foggers”) won’t control bed bug infestations “Bug Bombs” may cause bed bugs to scatter!!! “Bug Bombs” can worsen the bed bug problem!!
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October 2012
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cockroach feces bed bugs nearby cockroach shed skin
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What shouldn’t you do for a bed bug problem?
Typically, you shouldn’t dispose of furniture. Bed bugs will fall off the furniture as you are moving it, hence spreading the problem. Infested furniture usually can be treated. Bed bugs can quickly infest replacement furniture. Items placed on the curb often are picked up and reused, thereby spreading bed bugs to other households.
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Grocery store insect sprays won’t eliminate a bed bug infestation!
BUYER BEWARE: Grocery store insect sprays won’t eliminate a bed bug infestation! Must be sprayed directly on the bed bugs (‘kills on contact’) Most bugs are hiding and WILL NOT be killed Little or no residual activity (the chemical breaks down quickly)
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Words of caution regarding “natural products” for bed bug control:
Exempt from EPA regulation EPA requires no efficacy data Claims often based on “satisfied customers”—ask for their research data and evaluate it carefully
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BUYER BEWARE: Boric acid products don’t work!
Boric acid does not kill bed bugs. Boric acid is a stomach poison that must be eaten by an insect. Remember that bed bugs feed only on blood.
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Some Basics of Bed Bug Management Using Insecticides
There is no single “magic bullet”. A residual insecticide is necessary. Control of a bed bug infestation typically takes several treatments. It is important to use several different formulations, and often, several different insecticides. Don’t keep using the same insecticide (rotate insecticide use)
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Non-pyrethroid Insecticides For Use Against Bed Bugs
Active Ingredient (insecticide class) Product Name(s) Imidacloprid + ß-cyfluthrin (neonicotinoid + pyrethroid) Temprid® SC Chlorfenapyr (halogenated pyrrole) Phantom® SC Phantom® PI Acetamiprid + bifenthrin Transport® Mikron Transport® GHP Thiamethoxam + λ-cyhalothrin Tandem® Dinotefuran + diatomaceous earth (neonicotinoid + silica dioxide) Prescription Treatment Alpine® Dust Alpine® PI
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Some Insecticides Registered For Use Against Bed Bugs
Active Ingredient Product Name Miscellaneous Label Notes Diatomaceous earth (=silica dioxide) Natural Guard Crawling Insect Control Safer® Brand Ant & Crawling Insect Killer Crack & crevice applications Slow-acting Residual (long-lasting) activity Dusts should be applied in thin layers DO NOT allow product to get wet or it will permanently lose effectiveness Caution: Avoid inhalation; wear a dust mask during application Pool grade DE should NEVER be used for pest control. Pool grade DE contains crystalline silica and can be a respiratory hazard. - Mattresses mentioned on label Phenothrin w/isopropanol with synergist Steri-fab® Bedlam® Steri-fab: General surface application Bedlam: Mattresses mentioned on label—emphasis on seams, tufts and folds; spot applic. elsewhere Contact insecticide, not a residual
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Responding to a Bed Bug Incident at School
Obtain samples of the insect for positive ID Arrange for professional inspection ASAP Try to determine who has bed bug infestations at home so that you can offer guidance and suggestions: Provide educational material on bed bugs Communicate the importance of eliminating the bed bug infestation at home Suggest limiting the number of items brought to school Suggest storing school items inside a sealed container away from beds and upholstered furniture at home Reference: L. J. Pinto, R. Cooper, & S. K. Kraft Bed Bug Handbook: The Complete Guide to Bed Bugs. Pinto and Associates, Inc. Mechanicsville, MD.
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Responding to a Bed Bug Incident at School
Have a trained individual (e.g., school nurse) inspect items that are brought into school Be discreet Be respectful Be aware of unnecessary social stigmas Inspect items prior to entering classrooms Reference: L. J. Pinto, R. Cooper, & S. K. Kraft Bed Bug Handbook: The Complete Guide to Bed Bugs. Pinto and Associates, Inc. Mechanicsville, MD.
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Presentations available for group trainings
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For More Information http://ohioline.osu.edu OSU Extension
Fact Sheets: HYG-2105 (Bed bugs) HYG-2105A (Bat bugs)
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Sleep tight, and don’t let the … … well, you know the rest
Thank You! Sleep tight, and don’t let the … … well, you know the rest
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BED BUG PREVENTION FOR TRAVELERS
Make it STANDARD PRACTICE to check for bed bugs in hotel/motel rooms! Pull back the bedding and look for black fecal spots on mattress & box springs (especially seams) Carefully examine the underside of the bed skirt Look for bb signs along bed frame (especially head board) Open nightstand drawers and look for bb signs along inner and outer edges Look for bb signs along baseboards DON’T STAY IN A ROOM THAT HAS BB SIGNS
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BED BUG PREVENTION FOR TRAVELERS
Reduce the chances of getting bed bugs from hotel/motel rooms! Keep clothes in your zipped suitcase Don’t keep clothes in hotel chest-of-drawers OK to hang clothes in closet Don’t store your suitcase on the bed, floor, or upholstered furniture Keep your suitcase on the luggage rack (after first inspecting it for bb signs) The bathroom (tub) is the best place to store your items!
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