Franklin County Board of Health

Transcription

1 Mosquito Surveillance and Control Report for the Village of Riverlea May-July Kenton Ave. Columbus, Ohio T F

2 1 Mosquito Surveillance and Control Report Activity Report May-July 2008 (VDCI) provides a proven, scientific approach to mosquito control for the (FCBH). VDCI s operations include larval and adult mosquito surveillance followed by the application of larvicides and adulticides. In addition, our office responds to service requests from the public. Riverlea Mosquito Surveillance VDCI has utilized a total of one gravid trap in Riverlea, set weekly and placed in a residential area during this reporting period. These traps collected an average of 42.4 mosquitoes per trap night (466 total mosquitoes) during this time. There have been a total of 2 mosquito species collected, with Culex being the most predominant species. In reference to mosquito numbers, Riverlea s trap average of 42.4 mosquitoes is low compared to the average for all traps set throughout Franklin County, which currently average 72.9 mosquitoes per trap. Arboviral Testing Data All Culex species collected are tested for the West Nile Virus using the PCR testing platform, and are currently performed by the Ohio Department of Health. We have begun our in-house RAMP testing, starting with Culex mosquito pools that have shown a large jump in numbers. We RAMP tested the July 21 st Riverlea pool (14 total mosquitoes). This pool tested negative for the West Nile Virus. All pools will continue to be sent to the Ohio Department of Health for PCR testing as well. We are still awaiting some test results, but tested samples thus far have returned negative West Nile Virus results.

3 2 Mosquito Surveillance and Control Report Larval Control Activity Permanent water, flood water, artificial containers, woodland pools and drainage system sites are inspected for larval mosquito breeding on a regular basis. In total, approximately 1 site inspection in Riverlea found the presence of mosquito larvae. As a result of this inspection, 16 ounces Aquabac 200G, was applied to the mosquito breeding site. Additionally, VDCI is continuing to eliminate breeding habitat for artificial container mosquitoes by targeting bird baths, buckets, tires etc. Catch Basin and Storm Drain Treatment In June, treatment of Riverlea catch basin and storm drains was completed. Of the 47 storm drains/catch basins inspected, 8 were treated with Altosid XR due to water retention. These storm drains were reinspected on July 26 th. Service Requests To date, VDCI had received 2 service requests in Riverlea for mosquito complaints. Sources of complaints come through the FCBH s BITE line ( ), FCBH referral, other municipality agency referral (City inspectors), or through the FCBH web link to VDCI s . In response to this complaint, one site required larviciding. Adult Mosquito Control Activity In response to mosquito surveillance data and no West Nile Virus positives to date, adulticiding in Riverlea has not been necessary this reporting period. Summary The month of June has had a record high amount of rainfall, causing a higher mosquito population than normal in certain areas, especially in geographically low-lying municipalities. VDCI has focused on heightened control of larval populations, inspecting and treating problematic areas, educating the public and adult mosquito surveillance.

4 3 Mosquito Surveillance and Control Report VDCI will remain diligent in our surveillance and control activities to prevent a further significant increase in the mosquito population. Throughout the upcoming months, we will analyze trap data and test results to examine the necessity of adulticiding. As always, VDCI welcomes residents with any mosquito-related questions or concerns to contact Franklin County s Mosquito Control Program Bite Line at BITE.

5 Adult Mosquito Surveillance Report Start Date: 5/5/2008 End Date: 7/25/2008 Franklin County BOH Trap Location Date Trap Set Trap Type Mosquito Species No. Collected Riverlea Riverlea 5/12/2008 Gravid Trap Culex spp. 60 Riverlea 5/19/2008 Gravid Trap Culex spp. 17 Riverlea 5/27/2008 Gravid Trap Culex spp. 3 Riverlea 6/2/2008 Gravid Trap Aedes spp. 1 Culex spp. 53 Riverlea 6/11/2008 Gravid Trap Culex spp. 30 Riverlea 6/17/2008 Gravid Trap Culex spp. 12 Riverlea 6/24/2008 Gravid Trap Culex spp. 135 Riverlea 6/30/2008 Gravid Trap Culex spp. 23 Riverlea 7/7/2008 Gravid Trap Culex spp. 105 Riverlea 7/14/2008 Gravid Trap Culex spp. 13 Riverlea 7/21/2008 Gravid Trap Culex spp. 14 Trap Total 466 (Avg. 42.4) Overall Trap Total 466 Overall Trap Average Kenton Avenue Columbus, OH Page 1 of East Broad Street BITE

6 Arboviral Surveillance Results Start Date: 5/12/2008 End Date: 7/25/2008 Riverlea Franklin County BOH Trap Location Trap Date Trap Type Date Tested Pool No. Mosquito Species Pool Size Results Assay Riverlea 5/12/2008 Gravid Trap 5/28/2008 p1547 Culex spp. 50 Negative RT-PCR Gravid Trap p1548 Culex spp. 12 Negative RT-PCR 5/19/2008 Gravid Trap 6/9/2008 p1581 Culex spp. 17 Negative RT-PCR 5/27/2008 Gravid Trap p1617 Culex spp. 3 Negative RT-PCR 6/2/2008 Gravid Trap 6/13/2008 p1659 Culex spp. 50 Negative RT-PCR Gravid Trap p1660 Culex spp. 3 Negative RT-PCR 6/11/2008 Gravid Trap 6/24/2008 p1746 Culex spp. 32 Negative RT-PCR 6/17/2008 Gravid Trap p1820 Culex spp. 12 Negative RT-PCR 6/24/2008 Gravid Trap 7/18/2008 p1943 Culex spp. 50 Negative RT-PCR Gravid Trap p1944 Culex spp. 50 Negative RT-PCR Gravid Trap p1945 Culex spp. 35 Negative RT-PCR 7/21/2008 Gravid Trap 7/21/2008 p2372 Culex spp. 14 Negative RAMP Total Pools Tested: 12 Total Mosquitoes Tested: 328 Total Negative: 12 Total Positive: Kenton Avenue Columbus, OH Page 1 of East Broad Street BITE

7 Larvicide Applications Start Date: 5/1/2008 End Date: 7/28/2008 Franklin County BOH Date Location Habitat No. of Larvae Larvicide Amount Applied (oz.) Riverlea 6/10/2008 Throughout Storm drain system 0 Altosid XR 8.00 ( ) Total Ounces Applied: /10/ Olentangy Blvd Ditch 1-10 Aquabac 200G ( ) Total Ounces Applied: /8/2008 Throughout Storm drain system 0 Inspected /1/2008 West Riverglen Dr. Woodland pool 0 Inspected 0.00 Total Ounces Applied: /26/2008 Throughout Storm drain system 0 Reinspected Total Ounces Applied: Total Larvicide Applied in Riverlea: Overall Total Ounces Applied Kenton Avenue Columbus, OH Page 1 of East Broad Street BITE

8 Summary of Service Requests Start Date: 5/1/2008 End Date: 7/25/2008 Franklin County BOH Month Municipality Total Calls Total Inspected Disposition Totals Total Sites with Mosquitoes Total Amount of Larvicide Applied Total Amount of Adulticide Applied June 2008 Riverlea 2 2 No Treatment Required: 1 Emptied Containers: 0 Eggs: 0 Larvae: oz 0.0 oz Larvicided: 1 Pupae: 0 Adulticided: 0 Adults: 0 Dead Bird Pickups: 0 Needed to Return: 0 Overall Totals: 2 2 NA: 1 AT: oz 0.0 oz EC: 0 DB: 0 LV: 1 NR: Kenton Avenue Columbus, OH Page 1 of East Broad Street BITE

9 Welling Franklin County Area of Detail Franklin County, Ohio The Village of Riverlea Storm Drain System Treatment Date: June 2008 Treated-Storm System (8) Treated-Catch Basin (1) Inspected-Not Treated (38) Treated With Altosid XR (EPA Reg. No ) Blandford Sanbridge Short Evening Oxford Short Fox Warner Hallmark South Fox Garden Mid Winter Howard Pinney Orchard Riverglen Frontenac Falmouth Westchester Southington Pioneer Carrington Crescent Dover Olentangy Melbourne Beverly Northbrook Melbourne Selby Stanton High Chaucer Sharon Springs Emerson Pioneer Milton Lincoln Chase Emerson Lincoln Stanton Riverside Miles Highfield Broadmeadows Meadowlark PO Box 566 DeWitt, AR These map products were developed for use by VDCI for its internal purposes only and were not designed or intended for general use by members of the public. VDCI makes no representation or warranty as to its accuracy, timeliness, or completeness, and in particular, its accuracy in labeling or displaying dimensions, contours, property boundaries, or placement or location of any map features thereon. ( C 2008 VDCI. All rights reserved. 208 E Broad St