Your SlideShare is downloading. ×
0
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
1 Bed Bugs 101
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

1 Bed Bugs 101

1,905

Published on

4th Annual Bed Bug Summit sponsored by the Central Ohio Bed Bug Task Force

4th Annual Bed Bug Summit sponsored by the Central Ohio Bed Bug Task Force

Published in: Health & Medicine, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,905
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
67
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Bed Bugs 101 (Biology & Behavior) and Research Update
    Dr. Susan C. Jones
    Associate Professor
    Dept. of Entomology
  • 2. Bed bugs have plagued humans for thousands of years!
    Bed bugs are an emerging pest throughout the U.S.!
  • 3.
  • 4. SW Ohio
    Bed Bug Complaints*
    Cincinnati Health Dept.3
    Hamilton Co. Public Health Dept.1,2
    1,101
    305
    267
    266
    724
    167
    84
    37
    2
    ~10
    2003 &
    reporting system
    instituted
    bed bug inspection program suspended
    * Represents a small fraction of overall bed bug infestations in area.
    1Verified to be bed bugs. 2 Data courtesy of Greg Kesterman. 3Data courtesy of Camille Jones.
  • 5. Bed Bug Complaints by Zip Code(46 zip codes, Franklin County, Ohio)
    6,589 complaints
    2,125 complaints
    Data from COBBTF members, compiled by Paul Wenning
  • 6. ©Graphicmaps.com
  • 7. BED BUG HABITS
    • Cannot fly
    • 8. Can walk very fast
    • 9. Typically hide during the day in dark,
    protected sites (esp. cracks & crevices)
    • Prefer fabric, wood, and paper surfaces
    • 10. Can cling tightly to surfaces
  • Host Location by Bed Bugs: Time and Distance Travelled
    Slightly modified from :
    Reis, M. D. & D. Miller. 2011. Host searching and aggregation activity of recently fed and unfed bed bugs (Cimex lectularius L. ). Insects vol 2.
  • 11. Bed bugs are very goodhitchhikers!
    Bed bugs can be moved from one place to another by hiding in:
  • Bed Bugs Hiding in Luggage
  • 17. In multi-family housing, bed bugs readily spread to units that are adjacent, below, and above the infested unit.
  • 18. 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
  • 19. Bed bug encounters have sharply increased in the past 1 to 5 years compared to >10 years ago in all regions of the world, except for
    Africa/Middle East and South America.
  • 20. 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
  • 21.
    • Pesticide-exposed bb
    • 22. Pesticide-susceptible bb
    (Harlan strain)
    Genes involved in insecticide detoxification were at very high levels in field-collected bed bugs from Ohio.
    • Pesticide-exposed bb
    • 23. Pesticide-susceptible bb
    Cytochrome P450 (CYP9)
    Glutathione S-transferase (GST)
    Xiaodong Bai, Praveen Mamidala, Swapna P. Rajarapu, Susan C. Jones, & Omprakash Mittapalli. Transcriptomics of the bed bug (Cimex lectularius). January 2011. PLoS One 6(1): e16336.
  • 24. Bed Bugs
    (Cimex lectularius)
    • Insects (true bugs)
    • 25. Temporary external parasites
    • 26. Feed only on blood
    • 27. Often closely associated with hosts’ sleeping or resting sites (hide in many places)
    Not caused by bad housekeeping!!
    BED BUGS CAN HAPPEN TO ANYONE!
  • 28. Bed Bug Feeding Habits
    • Typically feed at night
    • 29. Prefer to feed on humans
    • 30. May feed on other animals
    • 31. rodents, bats, birds
    • 32. pets (cats, dogs, etc.)
    • 33. Locate their host using cues such as carbon dioxide and heat
  • During nighttime,
    the majority of fed males aggregated in the shelter whereas
    the majority of unfed males remained outside of the shelter.
    Average percent aggregated in shelter
    Reis, M. D. & D. Miller. 2011. Host searching and aggregation activity of recently fed and unfed bed bugs (Cimex lectularius L. ). Insects vol 2
  • 34. 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
    • 35. Resemble bites from other insects & kin
    • 36. Some clues that it may be bed bug bites:
    • 37. Typically are on exposed skin
    • 38. Often in groups or rows
    Confirmation based on finding bed bug evidence
  • 39. Survey (spring/summer 2009):
    • 474 individuals with verified bed bug infestation in dwellings
    • 40. Apts (66%), single-family homes (15%), condos/townhomes (9%), shelters (7%), dorms (2%), long-term care (<1%)
    • 41. Chicago, N.Y., Cincinnati, Louisville, Atlanta, L.A., & Miami
    • 42. ~70% of people had an allergic reaction to bed bug’s injected saliva; ~30% had no reaction
    - Swelling
    - Welts
    - Severe itching (hrs to days)
    • Difference in reactivity due to age
    - Elderly (>65 years old--42% with no reactions)
    - Children (1-10 years old--41% with no reactions [note: very small sample size])
    • No significant difference in reactivity for:
    - Males vs. females
    - Ethnic groups
  • 43. Injury From Bed Bugs
    • Allergic reaction in ~70% of humans
    • 44. Welts
    • 45. Severe itching
    • 46. Anemia
    • 47. Asthma
    • 48. Scratching of bites increases inflammation, can lead to secondary bacterial infections
    • 49. No conclusive evidence of disease transmission (reviewed by Goddard & deShazo. 2009. JAMA 301(13): 1358-1366)
  • INJURY FROM BED BUGS
  • 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/
  • 54. How to recognize if it’s a bed bug
    • Beak-like mouthparts
    • 55. Oval shaped body
    • 56. Adults: ~1/4 to 3/8 inch long
    • 57. Body flattened (unfed)
    • 58. Body swollen (recently fed)
  • 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 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
    2nd stage nymph
    ~0.08 inch (2 mm) long
    Takes a blood meal
    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
    Takes a blood meal
    then molts
    3rd stage nymph
    ~0.1 inch (2.5 mm) long
    Takes a blood meal
    then molts
    4th stage nymph
    ~0.12 inch (3 mm) long
    Takes a blood meal then molts
  • 59. OSU Pest Diagnostic Clinic
    614-292-5006
    IDENTIFICATION SERVICES
    The 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
  • 60. Life History Characteristics Show That Bed Bug Numbers Can Quickly Skyrocket … (Early Detection and Treatment are Very Important)
    • Eggs
    • 61. Glued in place
    • 62. 1 – 12 eggs / day / female
    • 63. A single female can produce ~150 eggs
    • 64. Hatch in 6 – 17 days
    • 65. Nymphs (immature bugs)
    • 66. Five nymphal stages
    • 67. Require a blood meal in order to grow
    • 68. Adults (males & females)
    • 69. Require repeated blood meals
    • 70. Can live 12 – 18 months
    • 71. Can survive months of starvation
  • All stages (except 1st instars) of a pyrethroid-resistant strain survived starvation for an average of >49 days.
    Mean days of survivorship after starvation
    nymphs
    adults
    Resistant strain, 70° F)
    Polanco, A, D. Miller, & C. C. Brewster. 2011. Survivorship during starvation for Cimex lecturarius L. Insects vol 2
  • 72. Where do bed bugs hide?
  • Bed Bugs Hiding in Mattresses and Box Springs
  • 85. bed frame
    Bed Bugs Hiding in Furniture
  • 86. Bed Bugs Hiding Behind A Hanging Picture
  • 87. 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
  • 88. 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 (esp. seams)
    • 89. Carefully examine the underside of the bed skirt
    • 90. Look for bb signs along bed frame (especially head board)
    • 91. Open nightstand drawers and look for bb signs along inner and outer edges
    • 92. Look for bb signs along baseboards
    DON’T STAY IN A ROOM THAT HAS BB SIGNS
  • 93. BED BUG PREVENTION FOR TRAVELERS
    Reduce the chances of getting bed bugs from hotel/motel rooms!
    • Keep clothes in your zipped suitcase
    • 94. Don’t keep clothes in hotel chest-of-drawers
    • 95. OK to hang clothes in closet
    • 96. 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!
  • Self-Protection Measures
    While Working In An Infested Home
    • Minimize items to be carried inside
    • 97. Don’t sit on beds, upholstered furniture, or the floor
    • 98. Do a self-inspection immediately after
    departing (remove shoes and thoroughly inspect them)
    • Change into fresh clothing ASAP
    • 99. Bag used items (seal the bag)
    • 100. Disinfect clothing by laundering & drying
    Tyvek boot covers
    Tyvek coveralls
  • 101. Guidelines for Reducing the Risk of Transporting Bed Bugs
    http://www.centralohiobedbugs.org/pdf/socsvc_guidelines.pdf
  • 102. OH Dept. of Agriculture
    Pesticide Regulation Section
    614-728-6987; 800-282-1955
    http://www.agri.ohio.gov
    Contact a professional pest control company to treat for bed bugs
    • Make sure properly licensed to apply pesticides
    • 103. ODA web site lists licensed pest mgt. companies and applicators
  • Contact a professional pest control company to treat for bed bugs
    Once you’ve made sure they are properly licensed to apply pesticides:
    • It’s advisable to obtain at least 3 estimates
    • 104. Check for satisfied customer references that relate to bed bug control
    • 105. Recognize that bed bug control typically takes several insecticide treatments
  • 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!!
  • 106. Thank You!
    Sleep tight,
    and don’t let the …
    … well, you know the rest

×