bed bugs in the workplace black_bed bugs.pdfdescribe one new biological trait you learned about...
TRANSCRIPT
Judy Black, BCE, CP-FS
Vice President, North America Technical Services
Rentokil Steritech
Bed Bugs In The Workplace
Objectives
Name a wide variety of methods available for treating for bed bugs.
Describe one new biological trait you learned about today.
List some of the types of facilities that are at risk for bed bug introduction.
Describe the difference between introduction and infestation.
Insecticides Containerized
Heat Inspecting Vacuuming
Cold Treatment
(Long Term)
Exempt Products
Whole Room Heat
Secondary Room
Inspection Encasements
Cold Treatment
(Knockdown)
Spot “Fumigation”
Steam Monitoring
Fumigation DNA Testing
Insecticides Containerized
Heat Inspecting Vacuuming
Cold Treatment
(Long Term)
Exempt Products
Whole Room Heat
Secondary Room
Inspection Encasements
Cold Treatment
(Knockdown)
Spot “Fumigation”
Steam Monitoring
Fumigation DNA Testing
Bed Bug Biology
What are the challenges we face when using
pesticides?
Small size
Survival without feeding
Lack of absorbent tarsal pad
– Effectiveness of dried deposits
Synthetic pyrethroid resistance
– Three forms
What are the challenges we face when using
pesticides?
Pesticide resistance
– Evolved nerve axons that
are not compatible with
pyrethroids
– Evolved to be efficient
detoxifiers
– Evolved “thicker” chitin
Timing of Egg Hatch
Days
1 - 5
Days
6 - 7
Days
8 - 9
Days 10 - 14
64% 90% 100%
Percentage of Population in Nymph Stage
78
22
Population Nymph vs. Adult
Nymph
Adult
89
11
Nymph Population
1st Instar
Other
From Rick Cooper
Dispersion: Population Dynamics
Secondary rooms = above,
below and beside the infested
room
Host finding behavior is quite
random
What do dispersing bed bugs
have in common? Hunger
Starved bed bugs will leave
after about 7 – 10 days 0
5
10
15
20
25
2003 - 2006
2007 - 2008
2009
Secondary To Primary
Wild Strain Feeding Behavior
Transition to lab
Opportunists
Percentage of Hotel Rooms By Number of Areas
Where Activity Was Found
14
86
One Area
Multiple Areas
What are the challenges we face when using
pesticides?
Level of detail required
for inspections and
applications
No grooming
No ingestion
Room Preparation
Room Preparation
Disassemble bed frame
Take drawers out of
dressers/nightstands
Room contents that can be
laundered in one set of bags
Room contents that cannot be
laundered or treated in another
set of bags
Everything comes off the walls
Carpet edges up
Non Traditional Sites
Non Traditional Bed Bug Activity
In 2014 @ 16% of our BB
growth was attributed to “non
traditional” locations
Non Traditional Sites
Hospitals
Nursing Homes
Movie Theatres
Offices
Restaurants
Introduction Versus Infestation
Health Care
Patient room
Exam room
Emergency/waiting type room
Long term care
Non Traditional Bed Bug Services: Hospitals
Client Driven Actions
Assess the risk
Develop response
processes for client’s staff
Develop staff practices to
minimize introductions
and infestations
Develop strategies for the
future related to
conducive conditions
Pest Management
Professional Actions
Design and deliver
training for client staff
– Certificate of completion
Execute inspections and
treatments as necessary
Non Traditional Bed Bug Services: Long Term
Care
Client Driven Actions
Develop response
processes for client’s staff
Develop staff practices to
minimize introductions
and infestations
Quarantine items
Pest Management
Professional Actions
Design and deliver
training for client staff
– Certificate of completion
“Residential” approach
Patterns of re-infestation?
Room temperature /
canines
Offices
Cubicles
Locker rooms
Break rooms
Movie Theatre
Metal bases
Concrete “steps”
Feeding adaptation
Complex “furniture”
Others
Restaurants
Laundry facilities
Food plant locker rooms
Prevent Taking Them Home
Be aware of your personal
items when visiting potentially
infested areas
Where to put luggage in hotel
room?
Arrive home
– Inspection
– Dryer
20 minutes on high
Proactive Processes
Inspections
Treatments
Monitoring
Hotel location: Nov 2011 – Mar 2013
2 2 2 2 1 1
Hotel location: Jun 2013 – Feb 2014
0
0.5
1
1.5
2
2.5
Jun Jul Aug Sept Oct Nov Dec Jan Feb
SenSci Volcano, with Activ lure
Case Study
Trust your treatment
Furniture
Structure
Procedure
Trust Your Treatment
Understand bed bug biology
Understand the pros and cons
of the methods available to you
Eliminate the obvious
Track your success
Adapt to oddities
Background
Four Floor Hotel
Pest Mgt vendor turnover
1st floor, @ 45 rooms
2nd floor, @51 rooms
3rd floor, @ 61 rooms
4th floor, @ 53 rooms
Furniture and Structure
1 treatment 2 treatments 3 treatments 4 treatments
Procedure: 2nd floor
S
E
1 treatment 2 treatments 3 treatments 4 treatments
Procedure: 3rd Floor
E
S
E
S
S
E
Case Study Conclusions
Track performance
Adapt treatment to unusual
circumstances
Offer expertise for remodels
Ask questions: go outside the
guest/staff introduction box
Reduce Conducive Conditions
Headboards
Upholstered Furniture
Acknowledgements
• Gene White (photo)
