Magnolia Scale is Pumping-Out Honeydew
I visited a landscape in southwest Ohio yesterday with a lily magnolia that was heavily infested with Magnolia Scale (Neolecanium cornuparvum). This is one of the largest "soft scales" in Ohio with mature females measuring as much as 1/2" in diameter. This native scale has a strong affinity for non-native magnolias and associated hybrids.
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