Yesterday the swarms of soybean aphids didn't seem quite so noticeable, I suppose they were down because of the rain. The news reports mentioned that they would be seeking out buckthorn trees, so I checked out this buckthorn tree and sure enough it was swarming with aphids. The cloud of flying aphids was noticeable a few steps away from the tree, and the leaves were covered with these bugs as you can see in the pictures. I can guess that the black winged bugs are the same ones that have been flying all over here for days but I haven't figured out how the green wingless bugs got there.
This buckthorn tree (Rhamnus cathartica) is on North University Street on the first block north of State Street (across the street from Matthews Hall). All three pictures are of this tree, all taken September 24, 2009.
Link to soybean aphids:
Link to Rhamnus cathartica:
Link to previous post on soybean aphids:
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