The 4 squash plants started from seed that I direct sowed are so through! They produced a mere two edible squash. The worst part about it is that I cooked the two Golden Zucchini in a casserole from a recipe I found at Skippy's Vegetable Garden and although the casserole looked yummy, we decided we hate zucchini. If I'd known that, I could have let the evil squash vine borer win a long time ago.
What I noticed was that, even though I'd made many attempts to control the squash vine borer, they attacked the plants from ground-level up. The stems became really rotten looking but still kept flowering and the ends looked pretty darn healthy. But, because the stems were so infected, they were not able to efficiently send water to the flowers so I had to water constantly! In fact, I wondered if I had watered them several times per day if they would have kept growing and producing. But, at some point along the way I started not caring that much about the stupid gold zucchini.
I will not be growing this again next year, not because of the squash vine borrer invasion (I would totally win the battle next year. KNOW THAT!) but because we don't like to eat them. But, if I were growing them again, here's what I'd do to prevent the invasion.
Start treating the plants with Sharp Shooter on a weekly basis as soon as they are a few inches tall. I think I discovered these evil bugs way too late but I do believe the sharp shooter works because the actual bugs definitely did not like it. It's a great organic pest control.
As much as I hate to do it, I'll be writing this crop down in the failure column. Good luck zucchini growers! May the force be with you.