Bugs on cowpeas
I noticed today that I have tiny, black and gray bugs on my purple hull peas. I looked up some information on the web, and apparently these are cowpea aphids. I hosed them off this morning, but they are now back. What would be a good and safe method of eliminating these bugs?
I also noticed one tomato plant has had all its leaves eaten. Would these same bugs be responsible? I tried to look for culprits but didn't really see anything. Only one of six tomato plants seems to be affected, so far.