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2019 Operational Review & Plans for 2020

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2019 Operational Review & Plans for 2020 METROPOLITAN MOSQUITO CONTROL DISTRICT 2019 OPERATIONAL REVIEW & PLANS FOR 2020 Annual Report to the Technical Advisory Board Plymouth facility field inspector dipping for cattail mosquitoes Metro Counties Government Center ~ 2099 University Avenue West ~ St. Paul, MN 55104-3431 www.mmcd.org Metropolitan Mosquito Control District Mission Technical Advisory Board The MMCC formed the TAB in 1981 to provide annual, The Metropolitan Mosquito Control District’s mission is to promote health and well-being by independent review of the field control programs, to enhance protecting the public from disease and annoyance inter-agency cooperation, and to facilitate compliance with caused by mosquitoes, black flies, and ticks in an Minnesota State Statute 473.716. environmentally sensitive manner. Technical Advisory Board Members Governance 2019-2020 The Metropolitan Mosquito Control District, Gary Montz, Chair Mn Dept. of Natural Resources established in 1958, controls mosquitoes and Donald Baumgartner US EPA gnats and monitors ticks in the metropolitan Stephen Kells University of Minnesota counties of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott, and Washington. The District Phil Monson Mn Pollution Control Agency operates under the eighteen-member Metropolitan John Moriarty Three Rivers Park District Mosquito Control Commission (MMCC), David Neitzel Mn Department of Health composed of county commissioners from the Susan Palchick Hennepin Co. Public Health participating counties. An executive director is responsible for the operation of the program and Robert Sherman Independent Statistician reports to the MMCC. Vicki Sherry US Fish & Wildlife Service Christopher Smith Mn Dept. of Transportation Metropolitan Mosquito Control Christine Wicks Mn Dept. of Agriculture Commission 2020 Mike Gamache Anoka County Mandy Meisner Anoka County Robyn West Anoka County Metropolitan Mosquito Control District James Ische Carver County Contributing Staff Tom Workman Carver County Stephen Manweiler Executive Director Thomas Egan Dakota County Diann Crane Entomologist Mary Liz Holberg Dakota County Janet Jarnefeld Technical Services/Tick Liz Workman Dakota County Kirk Johnson Vector Ecologist Jan Callison Hennepin County Carey LaMere Tech Services/Black Fly Angela Conley Hennepin County Scott Larson Assistant Entomologist Jeff Johnson Hennepin County Mike McLean Public Affairs Jim McDonough Ramsey County Nancy Read Technical Services Coordinator Mary Jo McGuire Ramsey County Mark Smith Tech. Serv./Control Materials Rafael Ortega Ramsey County John Walz Technical Services/Black Fly Michael Beard Scott County Tom Wolf Scott County Gary Kriesel Washington Co. Lisa Weik Washington Co. Website: www.mmcd.org Metro Counties Government Center Phone: 651-645-9149 2099 University Avenue West FAX: 651-645-3246 Saint Paul, MN 55104-3431 TTY use Minnesota Relay Service April 22, 2020 Dear Reader: The following report is the Metropolitan Mosquito Control District’s (MMCD) 2019 Operational Review and Plans for 2020. It outlines program operations based on the policies set forth by the Metropolitan Mosquito Control Commission (MMCC), MMCD’s governing board of elected county commissioners. The report has been reviewed by the Commission’s Technical Advisory Board (TAB). TAB’s charge is to comment on and make recommendations for improvements in the District’s operations, on an annual basis. The minutes and recommendations from the TAB meeting on February 11, 2020 are included in this report. TAB’s recommendations and report were accepted by the Commission at their April 22, 2020 meeting. The Commission approved the MMCD 2019 Operational Review and Plans for 2020 and thanked the TAB for their work. Please contact us if you would like additional information about the District. Sincerely, Stephen A. Manweiler Executive Director AFFIRMATIVE ACTION EMPLOYER Printed on recycled paper containing at least 15% post-consumer paper fibers Annual Report to the Technical Advisory Board Table of Contents EXECUTIVE SUMMARY ..................................................................................................................................................i CHAPTER 1 MOSQUITO SURVEILLANCE .................................................................................................................... 1 Background ............................................................................................................................................................ 1 2019 Surveillance ................................................................................................................................................... 2 Precipitation............................................................................................................................................................ 2 Larval Collections .................................................................................................................................................. 6 Adult Mosquito Collections ................................................................................................................................... 8 Monday Night Network................................................................................................................................... 8 Sweep Net Collections .................................................................................................................................... 9 CO2 Trap Collections ...................................................................................................................................... 9 Geographic Distribution ................................................................................................................................ 10 Seasonal Distribution .................................................................................................................................... 14 New Jersey Light Traps ................................................................................................................................. 17 Coquillettidia perturbans Population Prediction .................................................................................................. 20 Rare Detections .................................................................................................................................................... 20 2020 Plans – Surveillance .................................................................................................................................... 21 CHAPTER 2 MOSQUITO-BORNE DISEASE ................................................................................................................. 26 Background .......................................................................................................................................................... 26 2019 Mosquito-borne Disease Services................................................................................................................ 27 Source Reduction ................................................................................................................................................. 27 La Crosse Encephalitis ......................................................................................................................................... 28 Aedes triseriatus Surveillance and Control ................................................................................................... 28 La Crosse Encephalitis in Minnesota ............................................................................................................ 29 Exotic Species ............................................................................................................................................... 29 Aedes albopictus ............................................................................................................................................ 29 Aedes japonicus ............................................................................................................................................. 30 West Nile Virus .................................................................................................................................................... 31 Adult Culex Surveillance ...................................................................................................................................... 33 Larval Culex Surveillance .................................................................................................................................... 36 Eastern Equine Encephalitis ................................................................................................................................. 39 Western Equine Encephalitis ................................................................................................................................ 41 Jamestown Canyon Virus ..................................................................................................................................... 41 2020 Plans – Mosquito-borne Disease ................................................................................................................. 42 CHAPTER 3 TICK-BORNE DISEASE ........................................................................................................................... 44 Background .........................................................................................................................................................
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