APPENDIX I-Y:
City of
This appendix is copied from:
http://www.ci.longmont.co.us/city_council/2007_packets/0508/050807_6d.pdf
There are pictures from a power point presentation that I have been unable to reproduce, but which can be seen if you click on the above URL address.
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Files for Web\2007\050807\Special Reports and Presentations\West Nile Virus\1
Mosquito Update
2007.doc Page 1
CITY COUNCIL COMMUNICATION
Meeting
Date:
Subject: Mosquito Program Update
Type of
Item: Special
Presentation Time for Presentation: 15
Presented
By: Phil DelVecchio, Director, Com Dev Dept, x8318
phil.delvecchio@ci.longmont.co.us
Don Bessler,
Parks, Open Space and Public Facilities Director,
Ext 8992
Daniel Wolford. Open Space and Trails
Manager, Ext 4691
Suggested
Action: Information
In 2006, the City of
State of
were reported in and around
and 27 in
As we move into the 2007 mosquito
season, the City will be teaming up with
County Health Department and Colorado
Mosquito Control (CMC) to protect the
community from the potential adverse effects of
West Nile Virus. During the fall of
2006, with the assistance of the City’s
Purchasing Division, staff solicited a “Request for
Proposal” for mosquito
services. Staff evaluated
two proposals based upon the City’s
past experiences, the cost of such services
as well as contractor’s references, expertise
and organization. The evaluation team
determined that the city should continue with
Colorado Mosquito Control, thereby offering
CMC a one year contract, which may be
renewable for four additional one-year periods.
The City has contracted with Colorado
Mosquito Control since 2003 (2007 contract price
for services is $43,550). Larval control
makes up the vast majority of the City’s
abatement programs, nearly 95%. In 2006, CMC
inspected 2, 914 sites throughout
207 acres. The balance of the program consists of adulticide spraying in locations that
meet specific criteria. In 2006, CMC sprayed
a total of 411 lineal miles; of that total,
370 miles were sprayed at the request of
Boulder County Health Department, with the
support of the State’s Epidemiologist, for
emergency purposes. This was done
specifically to reduce the number of West Nile Virus
positive mosquitoes during August
of 2006.
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Mosquito Update 2007.doc Page 2
The designated threshold for spraying is
triggered when one of ten trap sites
throughout the City encounters adult mosquitoes of
100 or greater; this spraying is
then site specific. These trap sites are
monitored and evaluated on a weekly basis.
This information is shared between CMC,
the County Health Department and the City.
Typical hotspots for mosquito activity
generally concentrate around water. These
locations include Boulder County Fairgrounds,
Plant, Golden Ponds,
these are targeted sites for monitoring in
the 2007 season. The attached map provides
approximate location of area trap sites as well as
those areas to be targeted in 2007.
Additional services provided to the City
from Colorado Mosquito Control include:
• GIS Mapping
and regular reporting.
• Notification of spraying in the
Times-Call
• Current and updated Web site with
numerous links related to WNV and other
health issues.
• Complaint Line – toll free number to call
in problem areas or voice concerns --
877
276-4306
• Chemical Sensitive Notification List –
Citizens can request notification prior to
spraying
• Shut-off Request List – Citizens can
request CMC to turn off spray unit when in
front to their homes.
• Educational Literature related to WNV
and other Mosquito related diseases
• Prevention Program Assistance
The 2007 Mosquito Program will focus on
sites that have been identified and mapped
over the past 4 years and areas of
concentrations will be monitored based upon
complaints and past history. A variety of
environmental factors will influence the
success of our 2007 program, including
precipitation as well as temperature. Other
factors will include continued outreach and
public education.
Joe Malinowski,
Consumer Protection Coordinator for Boulder County Public Health
Department as well as John Pape, State Epidemiologist will be presenting a few slides
regarding the State wide perspective on WNV as
well as discussing how
Public Health will be using gathered
data to make recommendations regarding
emergency adulticiding.
Additionally, a representative from Colorado Mosquito Control
will be present to address any question City
Council might have regarding its
operations.
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2007.doc Page 3
Don’t forget your 4 D’s
Dusk to Dawn – Peak activity for mosquitoes are from
dusk to dawn, individuals may
want to limit their activity during this
time or take additional precautions.
Dress – When outside during peak mosquito
activity, wear long pants and long
sleeves
Drainage – drain standing water in backyards bird
baths, potted plants, tires, wading
pools, etc.
Deet – protect yourself from potential mosquito bites by wearing
an insect repellant
that includes a deet
product.
Attachments:
1. Boulder County Health Department’s
PowerPoint Presentation
2.
Changes in WNV
Surveillance for 2007
Environmental Health Division
Presented to the City of
by Joe Malinowski, Consumer Protection Coordinator
Goal is to Understand
Adulticiding Protocol
• Criteria public health
will be using when
recommending emergency adulticiding
• Answer questions prior
to recommendation
so that the emergency adulticiding can occur
in a timely manner
2003 – 2006
• WNV infected horses
• Dead birds
• Mosquitoes
• Human cases
2007
• Mosquitoes – will
be primary surveillant
• Vector Index
WNV Surveillance Has
Changed
Parameter Information
Provided Value in Surveillance
Program
Mosquito Composition Diversity of mosquitoes in the
area
Documents presence of
mosquito species that carry
WNV
Population Density
Abundance of mosquitoes
Quantifies the number of
mosquitoes at any given time
Infection Rate
Proportion of the mosquito
population carrying WNV
Quantifies incidence of
infected or potentially
infected mosquitoes
Vector Index: the estimated average
number of infected mosquitoes
collected per trap night summed
for the Culex mosquito
Vector Index Guides
Decisions
City of Longmont 2006 WNV Human Cases
and Vector Index by Week
0
1
2
3
4
5/28/
06
6
/4/0
6
6/18
/06
6
6
6
8/20/
06
6
10/8/
06
N um b e r o f C ases Longmont Human Cases
Onset
First
Positive Mosquito
First
Positive Bird
Initial
Recommendation for
Emergency
Spraying
Final
Recommendation for
Emergency
Spraying
& Spray Event
Vector Index
Emergency
Adulticide
Recommendation
Window
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21
Week
Vector Index
0 1 2 3 4 5
2006
2005
2004
2003
Emergency
Adulticide Window
June 24 – August 5
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City of
Mosquito Control Program2007 ® Prepared
3.12.2007 by:
Colorado Mosquito Control, Inc.
www.comosquitocontrol.com
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Legend
Longmont_Sites_2007
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