Nasturtiums and the black bug - Knowledgebase Question

west linn, Or
Question by louiso100
July 29, 2007
My nasturtiums are covered with small black bugs on the stems. Maybe aphids? How can I get rid of them?

Answer from NGA
July 29, 2007


It's difficult to identify an insect without really seeing it, but my experience has been that nasturtiums are magnets for black bean aphids. So, without even seeing the plant I can agree with your opinion - black aphids are covering your plants. Insecticidal soaps work well against soft bodied insects such as aphids, but they do not harm beneficial insects. Safer's, as well as other manufacturers, have insecticidal soap products available in ready to spray containers. Repeat applications will be necessary. Be sure to spray the undersides of the leaves and the stems of the plants.

Best wishes with your garden!

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