My zucchini and yellow squash have not been doing well in the last few weeks and now I think I know why. I am pretty sure it is a stem borer problem. The bottom of the stem at ground level is split right up the middle. I am off to google for more information but I would much rather hear from my fellow gardeners about your experiences and knowledge.
What do I do? I expect to pull everything out asap. I do have time to re plant for this season if I do it quickly but what do I do to the ground? Is this in anyway related to squash bugs that can be treated with Seven Dust? Thanks for any help.

MJ