Black Eyed Susans - Knowledgebase Question

Cherry Hill, Ne
Question by nbaron1
July 22, 2010
My black eyed susans have pin holes on the petals of most of the flowers. What causes this?


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Answer from NGA
July 22, 2010

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I suspect either four lined beetles or flea beetles are causing the holes in the petals of your Black Eyed Susan flowers. These pests need only to pierce the tissue by the tiniest amount and a hole will develop. If you don't see any insects on your plants they may have done their damage and moved on to another garden so no control is necessary. I'd go out several times a day to inspect the plants - you may catch the culprits in the act. If so, handpick the critters or spray them with Insecticidal soap. Best wishes with your plants!

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