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BIOLOGICAL CONTROL <br />EAB biocontrol releases for the 2017 field season concluded on 9/14/2017. A total of 68,496 parasitoids were <br />released between 8 sites. Parasitoids are released at a site for two field seasons to establish parasitoid <br />populations. Of these 8 sites, 5 were in the second year of releases and will no longer receive parasitoids. MDA <br />will monitor these sites for parasitoid establishment in the future. <br />Ash health assessments were completed at 24 current and past release sites throughout the summer. Ash health <br />has greatly declined in southeastern Minnesota as EAB increases in density and distribution. <br />Samples from yellow pan traps that were placed in Hennepin and Winona Counties have been screened and <br />sorted. 848 samples were collected between June and mid-September. 17 suspected Tetrastichus planipennisi <br />and 7 Atanycolus sp. (native parasitoid) will be sent to USDA for official identification. Results should be <br />available by early January 2018. <br />Location <br />Tetrastichus Oobius Spathius Total <br />SiteLatitudeLongitude planipennisi agrili galinae Released <br />Battle Creek Regional Park 44.93037-93.02206 5,4883,200 116 8,804 <br />Farmers Community Park43.99704-91.812226,2172,8004049,421 <br />Fish Point Park 44.73078-93.40847 2,1791,000 0 3,179 <br />Hartley Park46.83917-92.09568 6,3842,800 621 9,805 <br />Mississippi River Park 45.03151-93.28125 5,2753,300 103 8,678 <br />MN Valley Nat'l Wildlife Refuge 44.85824-93.21815 5,0093,500 0 8,509 <br />Reservoir Woods 45.00171-93.13357 5,7823,700 416 9,898 <br />White Water WMA44.18450-91.99079 6,9112,800 491 10,202 <br />All Sites 43,24523,100 2,151 68,496 <br /> <br /> <br /> <br />