The yellow black worms are butterfly caterpillars! I grow Parsley just for the Eastern Black Swallowtail caterpillars because I garden for butterflies!
I know some gardeners cover their plants with row covers to help prevent insects.
http://www.fcps.edu/islandcree...
I, too, hope some other Florida gardeners pop on this thread to give us some advice and suggestions for what and when to plant edibles.