Some times you can get rid of them by using a stiff spraying of water and keep doing so for 4 or 5 days without totally drenching the rosebushes. If it is a large scale invasion, perhaps spraying with a product called Bug Patrol by Safer or one of their other products is in order. When spraying any bug control product be sure to read the label over well first, then be sure to spray in a manner that will get some spray up under the leaves/foliage for best performance.
Answered on May 29, 2015
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