Hi Ms. Critterologist... Jill,
I have a dumb question. I've haven't had a problem with Squash Vine Borers yet but I've heard lots of people complaining about them so I have looked into it a couple of times. I figure they will show up sooner or later, they always do so I thought I would try to be prepared. All the info I have seen is similar to this website from the University of Wisconsin.
https://vegento.russell.wisc.e...
They all say that the moths usually emerge from late May (depending on the website) until the end of July and immediately begin laying their eggs on the vines of squashes and curcurbits. So, this probably is a really dumb question so you can all have a good chuckle, my feelings won't be hurt! But... since you know when they are coming couldn't you preemptively cover the vines to keep them safer? It doesn't sound like you need to cover the whole plant with insect cloth which could work but you'd have to uncover them to pollinate the plants which sounds like a pain.
Couldn't you just cover the vines? I used to use a lot of bird netting until I discovered tulle, it works much better! But I still have bags and bags of smallish pieces of bird netting and tulle. Couldn't you take a piece of netting, say 3' x 3' and bunch it up and just very loosely fold it around the stems as the plant grows? The moths would have trouble getting to the stems but it would leave the leaves and flowers open to sun and pollinators. I've done something similar many times and it has worked pretty well.
And, in the past I always had pill bugs eating through the stems of my squashes and zucchinis. I learned to spray to kill the bugs and then wrap the stems in paper tape, the stuff you get at the pharmacy for cuts and to cover stitches. It's cheap, it lets in air and water and most of my plants healed up pretty well.
And I tend to agree with Repentantslide. Rareseeds (Baker Creek) just isn't what it used to be. They used to have a much bigger variety. And the last couple of years they sent me some broccoli packets and squash varieties that were not what they were supposed to be. I use a lot of different vendors but I do like Victory Seeds a lot.
And I've been growing Casserta zucchini for the last few years. I like it a lot. It grows into a 6-8-10 foot vine with tendrils that root in the dirt similar to winter squash. It's super prolific!!
And spring is almost here! Happy gardening everyone.