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Monarchs vs. Aphids boggs.47 Fri, 07/21/2017 - 15:42
What are those hordes of yellow aphids sucking juices from common milkweed "reserved" for monarch butterfly caterpillars? They are Oleander Aphids and their appearance on milkweeds reminds us that nature makes no food reservations. This non-native aphid may be found sucking juices from over 50 hosts belonging to 16 plant families.
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Joe Boggs
Annual Flaming of Black Locust Trees boggs.47 Fri, 07/21/2017 - 20:10
Jim Chatfield called me from the road this morning to report seeing "flamed" black locusts along a highway in northeast Ohio. The captivating reddish-brown leaf coloration caused by the native Locust Leafminer Beetle is often a familiar sight to travelers motoring on Ohio's interstate highways. Indeed, when beetle populations are high during "outbreak years," black locust trees are able to be identified at highway speeds because of their blow-torched appearance.
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Joe Boggs
Jim Chatfield
Return Engagement of Boogie-Woogie Aphids boggs.47 Thu, 07/20/2017 - 16:10
David Gressley (Director of Horticulture, Spring Grove Cemetery and Arboretum) sent me a video yesterday morning of a chorus line of Beech Blight Aphids (Grylloprociphilus imbricator) shaking their woolly derrieres in a synchronous samba. Frankly, I believe no other insect upstages this aphid in entertainment value.
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Joe Boggs

Pine Cones on Willow?

The improbable looking but appropriately named Willow Pinecone Galls are now large enough to be very noticeable on their namesake host. As the common name suggests, the galls closely resemble pine cones with closed seed scales. They are produced on willow by a gall-midge but cause little damage to the overall health of their namesake host.
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Joe Boggs