Every year my zuchinni grows really great until about a few weeks after they are ready to pick and then a bug gets on them that is gray in color and looks like a stink bug. How can I get rid of that bug and not harm the plants?
The insect you describe is most likely a squash bug which feeds on various types of zuchinni and other plants in the cucubit family. Unlike other insects, you will often see the squash bug in various stages on your plants all at the same time (i.e. eggs, nymphs, and adults). The best way to control them is to monitor your plants early in the growing season and removing the eggs before any hatching occurs. The link below will show you pictures of what the eggs look like and how to manage this pest problem.