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Site Name Latitude Longitude Number of Number of EAB <br />Samples Collected Eggs Recovered <br />Fort Snelling 44.88491 -93.18779 26 340 <br />White Water WMA 44.184495 -91.990792 27 63 <br />Battle Creek 44.93037 -93.02206 10 28 <br />MN Valley National 44.85824 -93.21815 10 13 <br />Wildlife Refuge <br />Reservoir Woods 45.00171 -93.13357 10 2 <br />Houston Control 43.56971 -91.23684 8 0 <br />Houston Release 43.52080 -91.23666 1 0 <br />Hartley Park 46.76767 -92.13855 1 3 <br /> <br />Only one egg suspected of parasitism was recovered during this field season. The egg was recovered from <br />Reservoir Woods and will be sent to Toby Petrice with USDA APHIS for identification as shipping during the <br />winter season was impacted by COVID-19. <br />Whole tree sampling was completed in attempt to recover both larval parasitoids Tetrastichus planipennisi and <br />Spathius galinae from White Water WMA and Fort Snelling State Park. A minimum of 10 whole trees showing <br />signs of EAB infestation with a diameter at breast height of 2-4 inches were felled and debarked at each <br />location. EAB gallery conditions were recorded and inspected for signs of parasitism and larval mortality. <br />Site Latitude Longitude Number of Number of Number of T. <br />Trees Sampled Trees with T. planipennisi <br />planipennisi clutches <br />Fort Snelling 44.88491 -93.18779 18 2 3 <br />White Water WMA 44.184495 -91.990792 15 0 0 <br /> <br />The decrease in parasitoids as well as EAB larvae may have been a result of the extremely cold temperatures we <br />experienced in the 2018 to 2019 winter. <br />Biological control releases for the 2020 season began on June 5, 2020 and will continue until mid-September. <br />Releases are being conducted at 7 locations in the state. The USDA rearing facility is operating at half capacity <br />due to COVID 19 and is scaling back production of Tetrastichus planipennisi to focus on production of Spathius <br />galinae. <br />Site Latitude Longitude <br />Dodge Nature Center 44.89137 -93.09928 <br />Blackhawk Park 44.81625 -93.18637 <br />Frontenac State Park 44.53670 -92.34116 <br />McCarthy Lake WMA 44.25693 -91.96795 <br />Grand Lake 45.44626 -94.32870 <br />Rice Creek Chain-County Park 45.17528 -93.10537 <br />Elm Creek Park 45.14215 -93.42419 <br /> <br />