They are aphids. You can try spraying them off with plain water, or if that doesn't work well enough try insecticidal soap. You will likely have to repeat the treatment.
Name: Sasha Palmer Baltimore, MD (Zone 7b) Live for the Love of it.
sooby said:They are aphids. You can try spraying them off with plain water, or if that doesn't work well enough try insecticidal soap. You will likely have to repeat the treatment.