Growing Degree Day (GDD) Summary, April 2022

Here is your Growing Degree Day (GDD) summary ending April 30, 2022. While the calendar says it is spring, our actual outdoor experiences made have said otherwise. We have enjoyed some record breaking summer-like temperatures, but on the flip slide, snow flakes were still flying in April. Hopefully now that it is officially May, things will change - who are we kidding, it is Ohio. Stay tuned for these year-to-date summaries each month in 2022.
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Authors
Amy Stone

Woolly Aphids on American Elms

I recently came across the odd-looking handiwork of Woolly Apple Aphids (WAA) on newly emerging leaves of American elms (Ulmus americana, ‘Princeton’) in southwest Ohio. ‘Princeton’ is an old cultivar first propagated by Princeton Nursery in New Jersey in 1922 that was later found to be resistant to the fungal pathogens behind Dutch Elm Disease (DED).
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Authors
Joe Boggs

Calico Scale Poo-Drip

Calico scale (Eulecanium cerasorum) is notorious for raining large quantities of sweet sticky honeydew onto the leaves and stems of its host tree as well as onto understory plants, sidewalks, parked cars, slow-moving gardeners, etc. Indeed, my glasses became speckled with tiny honeydew droplets while taking pictures for this Alert.
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Authors
Joe Boggs

Soil Mining Bees: All Buzz, No Sting

Soil “mining bees” have been on the wing in southern and central Ohio for a few weeks but their activity has been rising and falling with our roller coaster temperatures. Still, we’re receiving reports of homeowners, school administrators, park managers, and others feeling besieged and opting to consider taking drastic, ill-advised measures.
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Authors
Joe Boggs