That is a squash bug....also known as a 'stink bug" very tough to get rid of. Diatomacious earth works organically and seven dust for death by toxic blast. If outdoors, place a board or roofing shingle on the ground next to the affected plant and bugs will crawl under at night as they like a damp environment. In the morning, put on your big ol' timberlands and start smashing. Additonally if you have trouble with them outdoors, can plant a few squash plants (hubbard and acorn work well) and the bugs will stay on the squash and away from your babies. Indoors...wow, never seen em indoors. Might want to look on the gardens alive website to see what they offer that is natural.