Brown Spots On Rhododenrons - Knowledgebase Question

Arlington, VA
Question by gtcolwell
April 7, 2000
How can I tell when lace bugs are active?

Answer from NGA
April 7, 2000


Lace bugs usually lay their eggs along midribs and larger veins of the leaves. They hatch in May and the young insects begin to feed on the undersides of leaves. You can tell you have them by their excretions, large brown sticky spots. The upper side of the leaf will be marked with whitish specks.

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