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Bedbug101slideshow Presentation Transcript

  • 1. Bed Bugs 101 (abbreviated version for web)Dr. Susan C. JonesAssociate ProfessorDept. of Entomology
  • 2. First things first:Don’t use bug bombs to treat bed bugs! - ”Bug Bombs” (“foggers”) don’t work - Few bugs will be killed! - “Bug Bombs” may cause bed bugs to scatter!!! “Bug Bombs” will worsen the bed bug problem!!
  • 3. 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
  • 4. Bed bugs are very good hitchhikers!Bed bugs can be moved from oneplace to another by hiding in: • luggage • furniture • bedding • backpacks, purses, briefcases • clothing • …
  • 5. Bed Bugs Hiding in Luggage
  • 6. In multi-family housing, bed bugs readily spread to units that are adjacent, below, and above the infested unit.
  • 7. Some Reasons For the Resurgence of Bed Bugs• International travel and commerce• Housing with high tenant turnover• Pesticide use has changed – Pesticide bans – Baits to control ants & cockroaches• Insecticide resistance
  • 8. Some Reasons For the Resurgence of Bed Bugs• International travel and commerce• Housing with high tenant turnover• Pesticide use has changed – Pesticide bans – Baits to control ants & cockroaches• Insecticide resistance
  • 9. Bed Bugs (Cimex lectularius) • Insects (true bugs) • Temporary external parasites • Feed only on blood • Often closely associated with hosts’ sleeping or resting sites (hide in many places) Not caused by bad housekeeping!!BED BUGS CAN HAPPEN TO ANYONE!
  • 10. Bed Bug Feeding Habits• Typically feed at night• Prefer to feed on humans• May feed on other animals • rodents, bats, birds • pets (cats, dogs, etc.)• Locate their host using cues such as carbon dioxide and heat
  • 11. If you wake up with itchy, red welts that weren’t there when you went to bed, perhaps its bed bugs. BED BUGS BITES: • Initial bite is painless • Resemble bites from other insects & kin • Some clues that it may be bed bug bites: • Typically are on exposed skin • Often in groups or rows Confirmation based on finding bed bug evidence
  • 12. Injury From Bed Bugs• Allergic reaction in ~70% of humans • Welts • Severe itching• Anemia• Asthma• Scratching of bites increases inflammation, can lead to secondary bacterial infections• No conclusive evidence of disease transmission (reviewed by Goddard & deShazo. 2009. JAMA 301(13): 1358-1366)
  • 13. INJURY FROM BED BUGS • Sleeplessness • Agitation • Anxiety • Economic hardship •…
  • 14. August 2010 CDC & EPA Joint Statement Bed bugs are a pest of significant public health importance!http://www.cdc.gov/nceh/ehs/Publications/Bed_Bugs_CDC-EPA_Statement.htmhttp://www.epa.gov/pesticides/bedbugs/
  • 15. How to recognize if it’s a bed bug • Beak-like mouthparts • Oval shaped body • Adults: ~1/4 to 3/8 inch long • Body flattened (unfed) • Body swollen (recently fed)
  • 16. Egg ~0.04 inch (1 mm) long Glued in place 1st stage nymph ~0.06 inch (1.5 mm) long Takes a blood meal then moltsAdult (male & female) LIFE CYCLE ~0.26 inch (6.5 mm) longTakes repeated blood meals; OF THE life span ~1 to 1½ yrs BED BUG 2nd stage nymph ~0.08 inch (2 mm) long Takes a blood meal (Cimex lectularius) then molts Note: These images depict bugs with a partly digested blood meal. © The Ohio State University Dr. Susan C. Jones & Benjamin R. Diehl 5th stage nymph ~0.18 inch (4.5 mm) long 3rd stage nymph Takes a blood meal ~0.1 inch (2.5 mm) long then molts Takes a blood meal 4th stage nymph then molts ~0.12 inch (3 mm) long Takes a blood meal then molts
  • 17. IDENTIFICATION SERVICESThe Ohio Department of Health (ODH) – A free service to Ohioans – ID insects, spiders or other arthropods of medical or public health significance (e.g., bed bugs, wasps, flies, maggots, ...) – Submit the sample via your local health dept.The Ohio State University – Fee for identification services ($20 for insect sample) – ID wide variety of insects and arthropods and plant diseases – OSU submission form available online: http://ppdc.osu.edu
  • 18. Life History Characteristics ShowThat Bed Bug Numbers Can QuicklySkyrocket … (Early Detection and Treatment are Very Important)  Eggs  Glued in place  1 – 12 eggs / day / female  A single female can produce ~150 eggs  Hatch in 6 – 17 days  Nymphs (immature bugs)  Five nymphal stages  Require a blood meal in order to grow  Adults (males & females)  Require repeated blood meals  Can live 12 – 18 months  Can survive months of starvation
  • 19. Where do bed bugs hide? • Mattresses, box springs • Bed frames • Furniture • Carpets and rugs • Cracks and crevices • Baseboards • Window frames and door frames • Electric outlets and switch plates • Drapery pleats • Peeling wallpaper • Carpet tack strip • Suitcases •…
  • 20. Bed Bugs Hiding inMattresses and Box Springs
  • 21. Bed Bugs Hiding in Furniture bed frame
  • 22. Bed Bugs Hiding Behind A Hanging Picture
  • 23. Bed Bug Prevention• Recognize the tell tale signs of bed bugs• Take measures to reduce the risk of getting bed bugs• Prevent bugs from spreading to new sites
  • 24. BED BUG PREVENTION FOR TRAVELERSMake it STANDARD PRACTICE to checkfor bed bugs in hotel/motel rooms! • Pull back the bedding and look for black fecal spots on mattress & box springs (esp. 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
  • 25. 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• Keep your suitcase on the luggage rack (after first inspecting it for bb signs) • Don’t store your suitcase on the bed, floor, or upholstered furniture• The bathroom (tub) is the best place to store your items!
  • 26. Contact a professional pest control company to treat for bed bugs• Make sure properly licensed to apply pesticides• ODA web site lists licensed pest mgt. companies and applicators
  • 27. Contact a professional pest control company to treat for bed bugsOnce you’ve made sure they are properlylicensed to apply pesticides:• It’s advisable to obtain at least 3 estimates• Check for satisfied customer references that relate to bed bug control• Recognize that bed bug control typically takes several insecticide treatments
  • 28. DO NOT use “bug bombs” against bed bugs! - ”Bug Bombs” (“foggers”) don’t work - Few bugs will be killed! - “Bug Bombs” may cause bed bugs to scatter!!! “Bug Bombs” will worsen the bed bug problem!!
  • 29. What if can’t pay for treatment?• Follow steps for prep (clean, vacuum)• Contact exterminators to see if payment plan is option• Try to limit exposure to invested areas to limit spread
  • 30. DO NOT use “bug bombs” against bed bugs! - ”Bug Bombs” (“foggers”) don’t work - Few bugs will be killed! - “Bug Bombs” may cause bed bugs to scatter!!! “Bug Bombs” will worsen the bed bug problem!!
  • 31. Thank You! Sleep tight,and don’t let the …… well, you know the rest