Here's how to get rid of squash vine borers without pesticides and stop them from coming back. Justin Hancock If your squash and pumpkin plants are wilting despite frequent watering or you’ve spotted holes bored into the base of your cucurbit plant stems, you may have a squash vine borer problem. These colorful moths target squash, zucchini, pumpkins, and gourds, and they can devastate entire...