Articles

An Abundance of Eriophyid Mite Galls

This is the time of the season when a range of plant growths produced under the influence of eriophyid mites (family Eriophyidae) become obvious on a wide range of trees and shrubs in Ohio. They appear in widely varying forms from bladder-like to spindle-like to felt-like to crinkled leaf edges and other unusual leaf deformities.
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Authors
Joe Boggs

First Generation Redbud Leaffolder

The unusual damage caused by the native redbud leaffolder on its namesake host is becoming evident in southwest Ohio as caterpillars develop through the first generation. Thus far, populations appear to be sporadic and highly localized. However, population densities and distribution may change with the appearances of the second and third generations.
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Authors
Joe Boggs

Sycamore Anthracnose Redux

American planetrees or sycamores are known for their near defoliation from sycamore anthracnose disease in spring as the leaves emerge. Yet. Yet typically the trees recover and look normal by July. And so it went in the season of 2020 in Ohio.
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Authors
Jim Chatfield

Flocculent Planthoppers Arise

Fulgoroid planthoppers (order Hemiptera, superfamily Fulgoroidea) are relatively small insects with the adults seldom measuring more than around 1/4" in length. The early instar nymphs (immatures) of many species congregate in groups, or "colonies," and are usually obscured by a dense cloak of tangled waxy, white, cotton-like "fluff."
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Authors
Joe Boggs