European Elm Scale Create Dripping, Sticky Elms

European Elm Scale (Eriococcus spurius (formerly Gossyparia spuria)) females are dripping sugary, sticky honeydew in southwest Ohio. This is one of the "felt scales" (Family Eriococcidae) so named because of the white felt-like material encircling the female's flattened body. The white-edge / dark-center effect makes the female's bodies look like tiny eyes.
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Authors
Joe Boggs

Seeing Scarlet in NE Ohio- Get Your Buckeye On!

Last week, Tom deHaas and Ann Channon wrote a great BYGL article titled “Not all Buckeyes are Created Equal. Which is Which??” https://bygl.osu.edu/node/1970.  The writing intent was to help identify the different species of Aesculus; naturally, these trees are all lumped together under the common identifier of “Buckeyes”- because after all, who doesn’t love Ohio or the Ohio State Buckeyes or Brutus Buckeye?  One true “buckeye” that is in my landscape and I absolutely love is Aesculus pavia or Red Buckeye (RB) or as it...

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Authors
Erik Draper

Fourlined Plant Marauders

Fourlined Plant Bugs are one of the sneakiest, quickest hitting spring pests found in Ohio. Hordes of hungry nymphs and adults descend seemingly out of nowhere to cause extensive leaf damage, then they just fade away leaving behind their foliar wreckage.
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Authors
Joe Boggs

Holey Oaks and Chestnuts

The holey handiwork of the Oak Shothole Leafminer (Japanagromyza viridula, syn. Agromyza viridula) is appearing on its namesake hosts in southern Ohio. Similar damage may be seen on Chinese chestnuts (Castanea mollissima). The leafminer is a small fly belonging to the family Agromyzidae; the leafminer flies.
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Authors
Joe Boggs

Holey Elms

Elm Flea Weevils (Orchestes steppensis) produce three types of damage on their namesake host: holes in the leaves, distorted leaves, and blotch-type leafmines. The three symptoms are currently on display in southern Ohio.
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Authors
Joe Boggs

Major Miner on Elm

The leaves of elms may be turning brown in southern and central Ohio thanks to the leafmining activity of the Elm Leafminer Sawfly, Fenusa ulmi (= Kaliofenusa ulmi). The sawfly larvae undergo rapid development, so damage occurs quickly.
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Authors
Joe Boggs