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Sticky, Dripping Oaks and Ghost Scales
MAY 18, 2023
I recently visited a commercial landscape that had 5” – 6” DBH bur oaks (Quercus macrocarpa) with their newly expanding leaves speckled with clear, sticky honeydew. Twigs and branches had a dark, di...
ODNR recently held a workshop in Spring of 2023 on Hemlock Wooly Adelgid(HWA) and Elongate Hemlock Scale(EHL) at Penitentiary Glenn in Like County. So as a horticulturist or homeowner, what should y...
Oak Apples, Woolly Catkins, and Leaf Blisters
MAY 18, 2023
Oak Apples, Woolly Catkins, and Leaf Blisters are appearing on oaks belonging to the red oak group in Ohio. While the galls may be very apparent, they cause no appreciable harm to their oak hosts.
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Lawns are greening up and growing like crazy. You may be tempted to employ the technique titled ‘No Mow May’. But what’s wrong with letting your lawn grow for the whole month of May without cutting ...
“Concrete†Mites: A Threat to White Clothing
MAY 18, 2023
So-called “concrete mites” are making their annual appearance in southwest Ohio. These tiny, fast-moving bright red mites scurry around on sunny surfaces such as picnic tables, patios, sidewalks, co...
Heavy Hawthorn Leafminer Damage
MAY 18, 2023
Damage by the Hawthorn Leafminer Sawfly (Profenusa canadensis, family Tenthredinidae) on its namesake host is becoming evident in southwest Ohio. Several small hawthorn trees I saw yesterday in a lo...
Hatch of Spotted Lanternfly Observed in Cincinnati
MAY 18, 2023
On Thursday, May 4, 2023, Jonathon Shields, Agriculture Inspection Manager with the Ohio Department of Agriculture (ODA), confirmed hatch of spotted lanternfly (SLF) within the Cincinnati infestatio...
Sticky, Dripping Maples
MAY 3, 2023
Late last week, I came across plantings of red maples (Acer rubrum) in a commercial landscape in southwest Ohio that were dripping sticky, sugary, honeydew; the calling card of phloem-sucking insect...
On my recent trip up to our local IGA, I had to look twice at this Honeylocust. Were those Flowers? Leaves? Buds? No, they were Lichen. The question is always “Will they hurt or kill the tree?”
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