Thank you so much for that observation. It is wood decking and I was already wondering if i'd have things crawl up through slats without tarping the deck. I like your idea of pvp and bird netting. Or even mosquito netting.
yep just cut pipe to length to make a square put together no glue and cover with netting,stopping most is better than none if you dig,usally the bugs come in huge group,i have found thaty aphids hit my outside veggies right around first august,damn squash vine bore worms from first of april,this is my biggest concern ,the damn things wipe out my squash ,even planting extra is just giving them extra,carrier is a wasp looking host,lay a black speck on stem close to soil ,next day the speck is orange,next day it gone and bored a hole in your stem,you should see me out there daily trying to keep up with the damn things,last year even with all my attempts by the end of the plants life i dug out min of 24 per plant,none ever made to mature and all got to sufocate in a jar,i had over 200 when i was finished and then i burned the plants.
so netting and pvc is already in my plan for coming season,since hospital gig,im not going to get to my big garden and just my container garden behind the house so netting is a good thing ,from the cash flow that would have gone to big garden ,that cash for small containers will, keep my head above water with the cost and can be used for years