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FAQ #36366

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I have a Rosa alba (Maiden's Blush) rose, and it is a huge bush covered with light pink buds in spring. The blooms partially open, get stuck, and look deformed, while other buds turn brown. Some little brown beetles appear on the plant during warmer months. What should I do?

Related resource areas: Gardens, Lawns & Landscapes

Rosa alba is a very old species of rose. The fragrant blossoms are usually white but can show a blush-pink tinge. It usually is very disease resistant and is hardy to Zone 2. This rose does require sun and good air circulation. It sounds as though it may be suffering from Botrytis blight. This disease is caused by the fungus Botrytis cinerea. The blight causes flower buds to droop and remain closed. Buds turn brown and decay. Sometimes partially opened buds are attacked, and an entire flower may be covered by gray fungus. Sanitation is extremely important, as is treatment with a fungicide. The link below will take you to information on this disease:
Rose Diseases

Your small brown bugs may possibly be rose chafers. Please visit the following site to compare:
Rose Chafers

However, other insects may just be drawn to the decaying blossoms and will not present a problem once that is taken care of.

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