Squash Vine Borer

This year I decided to grow a garden.  The peppers (banana, serrano, jalapenos, and bell) are doing well! The tomato plant is huge, but at press time we only have 1 small green tomato.  The eggplant and okra plants are doing great. And the cucumbers...OMG! HUGE and plentiful!  But then there was the zucchini plants.  They grew so big, so pretty.  Then one day they died.  After some research of found out they had been given the death sentence by squash vine borers.  I replanted but this time I sprinkle garlic powder on the soil.  Supposedly, SVB hate the smell of garlic.  We shall see...