What are these things and How do I get rid of them?

[azgirl]

I am bug illiterate. I don't like them and don't care to know them on a first name basis. However, I find myself having to 1) get close enough to take their picture while hoping they don't fly at my face and 2) figure out what their "name" is so I can deal with them.

These things fly and buzz at you when in the garden (this is my dad's garden). I believe they are sitting on the tomatoes and sucking the juice out of them rendering many of the tomatoes garbage! I asked at my local (very knowledgeable nursery) and they didn't know. I suggested a type of stinkbug, but they didn't think so...so here I am asking you guys!

Dad's approach has always been to do nothing, but these things are TAKING OVER and it is time to do something. I have always preferred organic, but will do whatever is necessary to exterminate this creatures before they take over his back yard and/or fly off with other small creatures (like, my dog).

Thanks in advance for your help.