A most excellent workshop that I attended yesterday in Burlington. - TopicsExpress



          

A most excellent workshop that I attended yesterday in Burlington. We had a hands-on tour where we learned to find and identify the EAB larva (Note the bell-shaped segments of its body, which help distinguish it from native grubs.) We found its serpentine galleries under the bark. Filled with sawdusty frass (poop), they were S-shaped, undulating back and forth as the EAB larvae tunneled along, halfway between the bark and the wood. The larvae we found were rather small and thin at this time of the year, probably between 1/2 and 3/4 long and 1/8 wide. Foresters for the DNR and Casey Chadwick, the City Forester of Burlington, helped us spot the tiny D-shaped exit holes, the flaking of bark caused by woodpeckers as they investigated for a possible meal, the longitudinal splitting of bark on limbs, and the calluses which formed as the trees try to repair the damage. In the afternoon, speakers offered advice on what cities can do to prepare for the inevitable spread of this devastating insect.
Posted on: Fri, 15 Nov 2013 18:40:27 +0000

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