Sorry to hear --- nothing like good crop from your own garden. Our spinach is crispy critter. Funny but the flowering continues to take place on the plants even though the leaves are no good. Happened when we went away for a few days. PVC and some shade cloth works okay. Depends on your setup. Our herbs continue to do okay, like tyme, sage, rosemary, and chives. Granted your heat is a little more than ours. I did rig a sail cloth for a few days this year for the peppers in containers.