Question
My petunias have green catipillars on each flower and they are being eaten with hardly any blooms.  Can these plans be saved?

Answer
Catherine, you need to treat the plants with BT. BT is an organic insecticide which is short for Bacillus Thuringiensis, more commonly sold under the brand names Dipel or MVP. It is a dust that is non-toxic to humans and beneficials but highly effective against caterpillars. cabbage worms, and hornworms. You can purchase this product through on-line catalogs such as Gardens Alive, Planet Natural or locally at many garden centers.  

Good luck, and please write again if I can ever provide assistance.

Have a good weekend.  

Mike