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Home My WebLink About2004 01 12 Informational 307r COMMISSION AGENDA ITEM 307 January 12, 2004 Meeting CONSENT INFORMATIONAL X PUBLIC HEARING REGULAR MGR /DEPT Authorization REQUEST: Inform Commission of Control Measures and Methods Utilized by the Public Works Department in City's 2003 Mosquito Control Program. PURPOSE: The purpose of this Board item is to inform and advise the Commission of additional mosquito control measures and action by the Public Works Department this past year. CONSIDERATIONS: The City Commission approved an increase in the stormwater fee in 2002 some of which was for a more comprehensive mosquito control program. This agenda item is an attempt to advise the Commission as to the improvements that were implemented in 2003. The West Nile Virus in Florida and the media attention has created the need for additional control measures and more proactive approach in our Mosquito Control Program. The Florida Department of Agricultural And Consumer Services - Division of Agricultural Environmental Services - Bureau of Entomology and Pest Control allows for several methods of monitoring that trigger the need for control measures. The methods consist of trap counts, complaint calls, and landing counts. Trapping consists of baiting the mosquitoes with carbon dioxide, trapping and counting, complaints calls logged and counted and landing counts which require human bait and counting mosquitoes landing on the skin for specific period of time. Given the possibility in transmission of West Nile Virus to an employee, the landing count method of monitoring is not desirable. The State recommended during an annual inspection of the City program, a modification to our complaint call trigger. The recommendation was to monitor the location of the calls by street, in a zone and proximity to other zones and do area and street specific treatment in multiple zones, thus l/ January 12, 2004 Informational Agenda Item 307 Page 2 concentrating the treatment to the areas of adult mosquito activity. The Public Works Department used this modified call log trigger in FY2002 and FY2003. To further advance the methodology of the City mosquito control program we have begun to compile data on the effectiveness of our control measures. Prior to FY2002 Seminole County had no mosquito control program which affected our program, as mosquitoes travel in search of blood meal. Since the spread of WNV to Seminole County, the County has become active in the reduction of mosquitoes and they are working with the municipalities in this effort. Seminole County started with the call trigger method and found it, as we did, to be non-specific and too costly and went to the trap and count method in FY2003. The Public Works Department piggybacked off of the County's contract with Clarke Mosquito Control to place traps within the city to compile data that will aid us in developing more effective and productive control program. We have placed traps in two locations in the City, one in the west, at Water Treatment Plant #2 off of Sheoah Boulevard and one in the east, at Water Treatment Plant #1 off of Northern Way. Traps were placed on August 11, 2003 with collection and identification of mosquitoes done every week until November 30, 2003. Counts for December, January, and February and March will be done once a month with weekly collection resuming April 1, 2004. The selection of trap locations is based on geographical area, proximity to wetlands, and complaint call history. The trapping data in conjunction with the call log will allow us to monitor the number of mosquitoes and complaints, before and after treatment, travel patterns of predominate species collected, and reduction in population using larvacide and adulticide. In Fiscal Year 02/03 Public works expended $14, 028.02 on chemicals, and $4,160.00 on surveillance for a total of $18,188.02. For Fiscal Year 03/04, $4788.00 has been expended on chemical and $10,240.00 will be spent on surveillance. The estimated total expenditure for FY 03/04 is anticipated at $26,000 with the remaining $12,000 for a one time aerial spraying of City with Seminole County if required. FUNDING: The current budget is $38,000 in the Stormwater Utility Management Fund. No additional funding is needed at this time. i January 12, 2004 Informational Agenda Item 307 Page 3 Mosquito Control Program Yearly Comparative 2002 2003 Month Compl aints Treatment Date Treatment Type Jan 2 Feb 2 Mar 14 Apr 0 may 6 Jun 10 27th Selective Streets Event Jul 71 3rd 11 th Selective Streets 17th, 19th, Entire City 9Mh Aug 73 1st AISelective Streets 10th 5eiective Streets 14th, 15th, Entire City 16th 23rd, 24th Selective Zones Sep 20 6th Selective Streets 7th Selective Streets 9th Event 21 st, 22nd Selective Zones Oct 10 9th, 10th, 11 th Zone 1, 2, 3, 4 29th, 30th Zone 5, 6 Month Compl aints Treatment Date Treatment Type Trap Check Date Trap Count West Trap Count East Jan 0 Feb 7 Mar 7 Apr 13 May 3 Jun 17 25th, 26th, 27th Entire City Jul 11 2nd Event 25th, 26th Entire City Aug 12 Traps Set 11 th 14th 328 984 18th 447 153 20th, 21 st 1, 2, 3, 4 21 st 2 578 25th 221 494 26th F 4. 5. 6 Sep 14 1 j I 2nd 243 0 Mn S 1 9th 1,2 15th 213 14 22nd 3 188 29th 1 531 19 Oct 20 6th 2, 3, 5 6th 102 1 Nov 1 4 1 1 7771 F—Nov Dec 0 F Dec COMMISSION ACTION: bin ti 13tn u s 20th 49 1 27th 24 2 29th Event 1, 2,3 30th Event 4, 5,6 2 4th 63 8 10th 37 88 17th 37 33 24th 0 1 2 1 st 7 0