Lilac Archives
Insects and diseases that can affect Lilac (Syringa vulgaris).
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Bacterial Blight
Bacterial blight of lilac, also known as shoot or blossom blight, is caused by the bacterium Pseudomonas syringae pv. syringae. The pathogen is capable of causing damage to all types of lilacs including Japanese, Chinese, Persian and common varieties. Some researchers suggest that white flowering varieties may be more susceptible to infection than other varieties. The disease is usually associated with plants that have been stressed by drought conditions, improper fertilization, and/or have been wounded. The pathogen has also been reported on Forsythia, Blueberry, and other ornamental plants.
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Lilac Borer
Adult lilac (ash) borers are moths that vary in color from brown to yellow to orange. They have clear wings…
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Powdery Mildew Cross Listing
While some powdery mildews attack a very few specific plants, others have a broad host range and infect many different…
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White Prunicola Scale
What was formerly considered to be a single species of scale known as the white peach scale, has been determined to actually involve two species, one commonly known as the white peach scale, Pseudaulacaspis pentagona, and the other, Pseudaulacaspis prunicola, with the suggested common name of white prunicola scale (WPS). The WPS is the species found on Long Island, whereas white peach scale is more southern in its geographic distribution.