2007-1356-Order No. 2007-127 Recorded 7/6/2007RE//VIE
L GAL COUNSEL
DESCHUTES
NANCY
COUNTY CLERKDS ~J ~QQ~-135fi
COMMISSIONERS' JOURNAL
IL II1111111111111111 47/06/1407 03;53;10 PM
2007-13
BEFORE THE BOARD OF COUNTY COMMISSIONERS OF DESCHUTES COUNTY, OREGON
An Order Approving the Annual Work Plan of
the Four Rivers Vector Control District
*
* ORDER NO. 2007-127
*
*
WHEREAS, Four Rivers Vector Control District is required by law to prepare an annual work plan and
submit same to the Board of County Commissioners for its approval; and
WHEREAS, the board of the District has prepared such a plan and presented it to the Board for
approval; now, therefore
THE BOARD OF COUNTY COMMISSIONERS OF DESCHUTES COUNTY, OREGON, ORDERS
as follows:
Section 1. The "2007 Vector Control Pesticide Use Plan" prepared by the Four Rivers Vector Control
District and attached hereto is thereby approved and adopted as an official plan.
APPROVED this zis/ --""day of June, 2007.
ATTEST:
Recording Secretary
BOARD OF COUNTY COMMISSIONERS
OF DESCHUTES COUNTYZOREGON
PAGE 1 OF I - ORDER N0.2007-127
r~EV~Ev® -~j
2007
VECTOR CONTROL PESTICIDE USE PLAN
Four Rivers Vector Control District
56478 Solar Drive
Bend, OR 97707
(541) 593-1689
DL a,, ~ 0 " 1/
,65
Applicator Information:
Bruce Landolt Licence#: 103062
56478 Solar Drive
Bend, OR 97707
Phone: 541-593-1689
Fax: 541-593-6211
E-mail: frvcd@att.net
Please send copy of plan approval to:
Deschutes County Commission
Administration Bldg.
Bend, OR 97701
Changes to our treatment plan for 2007:
Due to availability, cost, label differences, and differing conditions, we may be using
three to five different adulticides. They are all synthetic Pyrethroids.
Our pesticide use projections are based on what we believe would be used in the worst-
case scenario.
District public notification plan:
We will provide public service announcements on a minimum of two radio stations and
in the local newspaper prior to aerial larvicide drops, and before our adult fogging
season begins. As far as we know we have no non-English-speaking people residing in
our district. We have been treating mosquitoes in all of our neighborhoods for many
years. The vast majority of the population is well aware of what we are doing, and
support our efforts to the fullest. New people and visitors usually ask their neighbors
about us, and those concerned then call us. Our phone number is in the directory
2
Overall Vector Management Plan
The foundation of our mosquito control is Integrated Pest Management (IPM). The plan
begins with education, both of the public, and our employees. Next we look at source
reduction, which is very limited in our district due to federal and state protection of
wetlands, including those created by construction of roads and irrigation infrastructure.
We mostly accomplish source reduction by keeping ditches open, and pointing out
where people are creating source problems on their own property with landscaping
features. This year we are going to focus some effort on getting Deschutes County to
require filling in of septic system test holes, both old and new. Next we eliminate as
much larvae as we can with biological larvicides, augmented with some hormone
regulators. If we find pupae in sufficient numbers to cause human stress, we use a
surfactant to eliminate them. Lastly we use some form of Pyrethroids to reduce
numbers of adults that are missed by larviciding, or that fly in from untreated lands
adjoining the district, mostly federal and state protected lands.
Before larviciding experienced personnel walk the area to be treated, sampling the
water with dip cups and taking visual observations of bodies of water. They either treat
immediately with the most appropriate pesticide, or mark the body with a waypoint on a
map, including information about the larvae size, and in some cases species. Then they
bring back personnel at the appropriate time to treat under their supervision. Randomly
a day or two later they may return to inspect the water for mosquito larvae attrition, and
for any non target attrition. The entire process is recorded by attaching information to
waypoints. What triggers application of larvicides is finding an average of one larvae per
dip cup for nuisance mosquitoes (this can produce over 1,000,000 per acre), and any
amount of high potential disease carriers.
What triggers use of helicopter applications are two conditions. One is a flooded river
basin with larvae in so much of the water it would not be at all practical to treat by hand.
This always includes large bodies of water too deep to wade and to wide to reach from
shore. The other condition is large acreage wetlands flooded by irrigation practices, with
high and tangled vegetation, unreachable by hand from shore. When these conditions
exist our experience shows that almost all of the wetlands are infested with larvae. We
dip cross sections of marches, sometimes in chest waders, and sometimes from small
boats or kayaks. It is not possible to inspect every square foot of water, so it is possible
to treat where larvae do not exist, but we do all we can to avoid this. We have twenty
years of experience, and know what water produces and what does not. When the
decision to fly is made, we include all inspected water, and some water we know will be
infected from our past experience. One of our licensed applicators who is experienced
in a given area rides with the pilot, and makes all the decisions about what bodies of
water are applied to. When we do fly, we include some water that could be treated by
hand, but is far more practical to treat by air while we are up there. This does not
include bodies of water smaller than 20 feet in diameter. We use a very experienced
helicopter application company from Newberg Oregon. They charge us by the pounds
applied, but of course are not willing to come that far for too small of a project. Thus we
do not use helicopter application unless we have a large area in need of application,
and we try to cover everything practical while we have them here.
The criterion we use that triggers applications of adulticides are trap counts, landing
counts and requests for service from our residents or businesses. A service request will
cause us to inspect an area for mosquitoes. If we count more then five attempting to
bite, or trap more then 20 per night, we will treat that area. Sometimes the whole district
is inundated, and it takes multiple applications to bring it under control.
4
Sensitive areas and species:
See maps attached to the 2006 plan, showing more and less sensitive areas.
Much of our larviciding applications are to waters that drain directly or subterranean into
fish bearing water. We use larviciding products that are least invasive to fish
populations. We have a list of residents with conditions which require notice before
each adult fog run. We avoid disturbing osprey and eagle nests when applying aerially.
We instruct our employees to walk carefully through marches and tall grass, to avoid
disturbing nesting birds, or stepping on their eggs. We treat all marsh lands by hand
when possible and practical. We do not use ground machinery to apply larvicides
because it disturbs the wetlands far more than hand treatment. When it becomes
impossible to wade through infected water, due to high water or tall and tangled
vegetation, we use helicopter application, even though it is considerably more
expensive than ground equipment or fixed wing aerial treatments. Helicopter
applications waste far less product through drift or inaccurate placement than fixed wing
applications.
Surveillance for impacts on non-target species:
We instruct our employees to be observant and note any carcasses of none target
species when they make routine post treatment surveys for efficacy. We have included
a year end summery report of observed detrimental effects to the population of non-
target species due to our control program.
Educational Activities of the district
We give informal talks at local neighborhood community centers, and are invited to talk
at other local events and some real estate office meetings. We interview on radio and
TV several times each season, and use that for education for all of Central Oregon. We
stop door to door as we see open containers and tires lying about. We encourage local
road districts to keep their ditching systems from pooling up. We encourage the county
to require people to fill in septic system test holes. Events will be scheduled in as the
year progresses.
Target Pest Information
Target Pest: Mosquito Larvae
Surveillance Methods: Collecting by dip cup
Treatment Threshold: We only treat species that feed vigorously on humans.
Most species we treat if we consistently count one per dip.
Some proven high-risk disease carriers we will treat if any are
present. Examples are Culex tarsalis, and Aedes vexans.
Efficacy Sampling: Treatments are evaluated periodically by follow up dipping.
Surveillance for impacts
on Non-Target species: Visual only, as we check for efficacy:
Total Agents to be used: Six
7
Target Pest Information
Target Pest: Adult Mosquito
Surveillance Methods: Adult trapping, Service requests, and observations of adult
activity.
Treatment Threshold: Nuisance mosquitoes: 20 per trap night or two service requests,
and or observation of adult activity by a district employee.
Suspected disease carriers: Any amount found in traps, or
observed by trained employees.
Efficacy Sampling: Treatments are evaluated periodically by employee
observations, and trap counts.
Surveillance for impacts
on Non-Target species: Visual by follow up observations in treatment areas.
Total Agents to be used: 6
8
Control Agent Information
Product Name:
EPA Registration
Lbs/Gal
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
Permanone 31-66
432-1250
9.23
Permethrin/Piperonyl Butoxide
31.28% / 66%
Adult Mosquito
1 fl oz/acre (.004 lb ai/A)
50 gal
143304
64,000
74/148
53,132
Application Method: ULV fogger. Ground applied fog. Diluted with Petroleum Distillate.
Application Sites: Air throughout neighborhoods within the district
9
Control Agent Information
Product Name:
Scourge 18+54 Concentrate
Lbs/Gal
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006:
Acres treated in 2006:
8.41
432-667
Resmethrin/Piperonyl Butoxide
0.18 +0.54
Adult Mosquito
.1 fl oz/acre (.004 lb ai/A)
50 gal
64/192
64,000
0
0
Application Method: ULV fogger. Ground applied fog. Diluted with Petroleum Distillate.
Application Sites: Air throughout neighborhoods within the district
10
Control Agent Information
Product Name:
Anvil 10+10
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
1021-16-88-8329
Sumithrin/Piperonyl Butoxide
10 10
Adult Mosquito
AN oz/acre (.0025 lb ai/A)
10 gal
7.4/7.4
2560
1.89/1.89
787
Application Method: ULV fogger. Ground applied fog. Diluted with Petroleum Distillate.
Application Site: Air throughout neighborhoods within the district & to air space
directly above breeding sites.
11
Control Agent Information
Product Name:
Aqua-Kontrol
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used
Acres to be treated:
73748-1
Permethrin + Piperonyl Butoxide
20% +20%
Adult Mosquito
.0035 +.0035lbs/acre
Unknown
Unknown
Unknown
If this product is used it will reduce the amount of other adulticides used proportionately.
Application Method: ULV fogger. Ground applied fog. Diluted with Water.
Application Site: Neighborhoods within the district.
13
Control Agent Information
Product Name: Aqua-Reslin
EPA Registration
432-796
Lbs/Gal
8.46
Active Ingredient:
Permethrin + Piperonyl Butoxide
% of active ingredient:
20% +20%
Target Pest:
Adult Mosquito
Rate of Application
.0035 +.0035 Ibs/acre
Amount of product to be used
Unknown
Lbs. of active ingredient to be used:
Unknown
Acres to be treated:
Unknown
Lbs. of active ingredient used in 2006:
0
Acres treated in 2006:
0
If this product is used it will reduce the amount of other adulticides used proportionately.
Application Method: ULV fogger. Ground applied fog. Diluted with Water.
Application Site: Neighborhoods within the district & to air space directly above
breeding sites.
14
Control Agent Information
Product Name:
Suspend SC
EPA Registration
Active Ingredient:
% of active ingredient:
Lbs/AI per gal
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
432-763
Deltamethrin
4.75%
.42
Adult Mosquito
1 FI oz/gal
20 gal
8.4 lb
200
0
0
Application Method: Backpack Sprayer. Diluted with Water
Application Site: Perimeter of certain homes or neighborhoods where other
applications will not work
15
Control Agent Information
Product Name:
EPA Registration
Active Ingredient:
Lbs/Gal
GB 1111
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
8329-72
Petroleum Distillate
7.4
98.7
Mosquito Pupae
2.5 gal/acre (18.25 lb ai/A)
100 gal
730 Ibs
40
197
10.8
Application Method: Hand backpack sprayer.
Application Site: Isolated trapped bodies of water with pupae present
16
Control Agent Information
Product Name:
Vectobac 12AS
EPA Registration
Active Ingredient:
Lbs/gal
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006:
Acres treated in 2006:
73049-38
Bacillus thuringiensis israelensis, Serotype 14
7.5
11.61
Mosquito Larvae
6oz/A (.0408 lb ai/A
20 gal
17.4lbs
425
1.89/1.89
Application Method: Hand backpack sprayer. Diluted with water.
Application Site: Any body of water inhabited by mosquito larvae
17
Control Agent Information
Product Name:
Vectobac G
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Pounds of active ingredient to be used
Acres to be treated:
Lbs. of active ingredient used in 2006:
Acres treated in 2006:
73049-10
Bacillus thuringienses israelensis, serotype H-14
2.8%
Mosquito Larvae
10 Ibs/A (.28 lb ai/A)
5,000
140
500
0
0
Application Method: Aircraft & Powered Backpack
Application Site: Any body of water inhabited by mosquito larvae
18
Control Agent Information
Product Name:
Vectobac CG
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
73049-19
Bacillus thuringienses israelensis, Serotype H-14
4.95%
Mosquito Larvae
7 Ibs/A (.3465 lb ai/A)
5,000
248 lb
715
568
1350
Application Method: Aircraft & Powered Backpack
Application Site: Any body of water inhabited by mosquito larvae
19
Control Agent Information
Product Name: Altosid Briquets
EPA Registration
2724-375
Active Ingredient:
Methoprene
% of active ingredient:
7.9
Target Pest:
Mosquito Larvae
Rate of Application
1 per 100 sq. ft. (.5 lb ai/A)
Amount of product to be used
7138 units
Lbs. of active ingredient to be used:
14.5 Ibs
Acres to be treated:
29
Lbs. of active ingredient used in 2006:
1.17
Acres treated in 2006: 1.32
Application Method: Hand toss
Application Site: Containers, fish ponds, bird baths, storm drains, isolated small ponds.
20
Control Agent Information
Product Name:
Altosid XR Briquets
EPA Registration 2724-421
Active Ingredient: Methoprene
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
1.8
Mosquito Larvae
1 per 225 sq. ft. (.28 lb ai/A)
770 units
7lbs
25
0
0
Application Method: Hand toss
Application Site: Containers, fish ponds, bird baths, storm drains, isolated small ponds.
21
Control Agent Information
Product Name:
ALL SR-5
EPA Registration
Active Ingredient:
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006
Acres treated in 2006:
2724-392
Methoprene
5
Mosquito Larvae
.25 pt/A (.0268 lb ai/A
125 pints
13.4
500
0
0
Application Method: Hand backpack sprayer & aircraft. Diluted with water.
Applied to water.
Application Site: Any body of water inhabited by mosquito larvae
22
Control Agent Information
Product Name:
EPA Registration
Active Ingredient:
Agnique
% of active ingredient:
Target Pest:
Rate of Application
Amount of product to be used
Lbs. of active ingredient to be used:
Acres to be treated:
Lbs. of active ingredient used in 2006:
Acres treated in 2006:
53263-28
Poly "oxy 1,2-ethanediyl,
alpha-isooctadecyl-w-hydroxyl
100
Mosquito Pupae
.3 gal/A (2.16 lb ai/A)
10 gal
712.8lbs
330
0
0
Application Method: Hand backpack sprayer & aircraft. Diluted with water.
Applied to water.
Application Site: Any body of water within the district inhabited by mosquito larvae
23