Bug Bytes

That May Not Be Snow on Those Alders!

BYGL reports become sparse at this time of the year with cold temperatures suppressing our subject matter. So, I was surprised last Thursday when I got an e-mail from John Martini, University of Cincinnati's Landscape Architect, with an image taken by UC Planner Joe Willging showing collections of white fluffy material on the branches of an alder (Alnus sp.).
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Authors
Joe Boggs

Fall Leaf Drop Reveals Calico Scale

Calico Scale spends the summer as crawlers attached to the main veins on the underside of leaves. Detection can be a challenge with crawlers distributed on foliage throughout the canopy. However, as fall approaches, the crawlers move onto stems where they spend the winter. Clusters of crawlers coupled with blackened stems are key diagnostic features for detecting a calico scale infestation.
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Authors
Joe Boggs

Terrapin Scale on Sycamore

I posted a BYGL Alert last week extoling the virtues of one of my favorite native trees, American Sycamore [see, Ode to the Buttonwood Tree, October 18, 2017]. I came across a soft scale that I had never seen before on sycamore while taking pictures to illustrate the Alert. I would have included my find in the Alert, but it took me a while to settle on an identification.
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Authors
Joe Boggs

They're Heeeere!

Boxelder Bugs were included along with several other notorious nuisance insects in my BYGL Alert titled, Fall Home Invaders are Poised to Enter (Sept. 30, 2017). They may have been poised then, but the bugs are now visiting homes en masse in southern Ohio. Indeed, I visited a home on Wednesday that was literally buggy with the bugs.
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Authors
Joe Boggs

Delayed Woolly Bear Crawl-About?

Bristly "woolly bear" caterpillars commence their annual crawl-abouts in search of sheltered winter quarters in the fall; it's usually sometime in September in Ohio. They may be found on sidewalks, walking trails, roadways, or on the walls of homes and buildings. However, insects are sometimes made most noticeable by their absence.
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Authors
Joe Boggs

Magnolia Scale Update

I first reported on Magnolia Scale (Neolecanium cornuparvum) this season in June when the maturing females were "puffing-up" and pumping out honeydew (see BYGL Alert, "Magnolia Scale is Pumping-Out Honeydew," June 16, 2017). My lengthy BYGL post included a description of the life-cycle for this "soft scale" as well as information on management options.
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Authors
Joe Boggs

European Hornets Cause Concern

At some point each season, I have come to expect receiving at least one phone call or e-mail message from a concerned Ohioan reporting they’ve found Giant Asian Hornets in our state. Although there have been no confirmed sightings of these hornets in North America, I never reject such reports out-of-hand.
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Authors
Joe Boggs

Aphid Outbreak

I got a phone call from a homeowner in southwest Ohio who said they had an aphid problem on willows. They described the situation as huge numbers of aphids dropping from large willows onto their home, driveway, and barn; sticky "sap" raining down on everything; and all manner of things acquiring a blackened patina.
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Authors
Joe Boggs