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Biacantrol �010 2p11 2012 2013 2014 2015 2016 All
<br />Agent
<br />Tetrastichus � 154 19,480 19,822 42,579 34,434 1S1,p22 45,288 314,i79
<br />planipennisi
<br />C7abius agrili 0 3,641 10,241 8,597 12,062 31,490 42,600 108,631
<br />Spathius 1,172 7,596 15,25$ 0 0 0 0 24,026
<br />agrili
<br />Spathius p 0 0 0 0 0 1,613 1,613
<br />galinae
<br />Totals 3,326 30,717 45,321 51,176 46,496 182,512 89,501 449,049
<br />• Brian 5chwingle, Farest Health Specialist with the MnDNR found a clutch ofthe larval parasitoid Tetrastichus
<br />planipennisi in an EAB gallery while ground-truthing aerial survey locatians in Houstan and Winona Counties.
<br />The find was over 4 miles from the nearest parasitoid release location and continues ta provide evidence that T.
<br />p/anipennisi is established in the southeast part of the state and growing in population.
<br />T. planipennisi (arvae found in EAB gallery in SE MN
<br />• Twenty-four bark samples collected from release sites in sautheast Minnesota last February are being analyzed
<br />to laok for the egg parasitoid Oobius agrili. 32 EAB eggs have been recavered from the 17 samples analyzed so
<br />far with none showing signs of parasitism.
<br />• Yellow pan trap samples taken throughaut the summer fram Ft. Snelling State Park are being screened for EAB
<br />parasitoids. 618 af 840 samples have been processed with 23 suspected parasitoids recovered so far (19
<br />Tetrastichus pianipennisi, 4 Atanycolus sp.). Once screening is cornplete, suspected parasitoids will be sent off ta
<br />an afficiai identifier.
<br />RESEARCN
<br />Tracking the EAB Infestatian Core �� �� � �
<br />0�,�� I`�7�,�� ��)�I�1� '�mlll� °�l;iillllll
<br />• Tracking the EAB Infestation Core study is entering its final round of �'�����!�%���' �7%`i% '%�i'i���i/i!%�1!i;,.
<br />,;.,f,..�i�,:� ��i„ � , ,,;,,,,,;,,;,,
<br />branch sampling this winter with 109 study trees remaining. Of the �� i` �'�a',��„�,�� �' ,
<br />remaining study trees, nane are in the area defined as the care ��
<br />(ariginal infestatian area ofSt Paul and Minneapalis). The remainder E�'�/`'������"�"'
<br />are split between Zanes 2 and 3(51 and 58 respectively). A,1JD h�ATURAL RES�7URCES
<br />• Mark Abrahamsan presented "When Do You Pull the Trigger? Using `"r� ��'�`" ����
<br />Monitoring Data to Optimize EAB Management" at the Upper Midwest
<br />Invasive Species Canference held in La Crosse, WI Oct. 17-19. A key finding af this three year study was that all
<br />EAB manitoring tactics used (visual survey, trapping and branch sampling) were effective at identifying the
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