The leaves of native elms, non-natives, and hybrids can look a bit bedraggled at this time of the year owing to the leafmining activity of the elm leafminer sawfly. Fortunately, leaf...
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Bronze Birch Borer Remains a Threat
JUN 14, 2022
Bronze Birch Borer (BBB) (Agrilus anxius) is native to North America and only targets trees belonging to one genus, Betula. Historically, BBB ranged across the northern U.S. and southern Canada whic...
The Japanese Maple Scale Challenge
JUN 2, 2022
Oystershell Scale has long presented a management challenge given its wide host range coupled with limited insecticide targets. However, this armored scale has been largely supplanted by the Japanes...
European Elm Scale Create Dripping, Sticky Elms
JUN 2, 2022
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 b...
Monitor Now to Stop Bagworms!
JUN 2, 2022
Look closely at trees and shrubs festooned with last season’s Common Bagworm (Thyridopteryx ephemeraeformis) bag-abodes. Overwintered bagworm eggs are hatching in southwest Ohio meaning the “bagworm...
Hydrangea Leaftier
JUN 2, 2022
The Hydrangea Leaftier Moth (Olethreutes ferriferana, family Tortricidae) is so named because the caterpillars tie together developing leaves on wild and cultivated hydrangeas to produce oddball “le...
Elm Leafminer Sawfly
MAY 19, 2022
While there is something to see year round in the world of Spotted Lanternfly or SLF, last week, a group of Extension professionals – Jim Jasinski with our IPM Program, Thomas deHaas in Erie County,...
Name That Pathogen
APR 24, 2022
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Egg masses of Spotted Lanternfly, Lycorma delicatula, on Tree of Heaven, Ailanthus altissima, were discovered by an arborist during the week of February 14. Ohio Department of Agriculture inspected ...
