Lady Birds eat aphids, which in turn eat plants. For this
reason, Organic farmers use them as a form of pest control, as the
aphids eat their crops and the Lady Birds keep the population under
control.
No, lady beatles only eat aphids and other small insects. Lady
bird beatles (also known as lady beatles also known as ladybugs)
are actually purposely placed by enviromentally concious farmers to
protect their crops. They can be purchased at most gardening
stores.