It doesn't even take a plastic baggy to cook tomatoes here. use a more natural shade than plastic, such as cloth. Yes, when days are above 90* and nights don't drop below 80*, the pollen gets 'cloggy and useless' and when blooms aren't pollinated they drop. Airflo is vital. I used a screen of bamboo grass last year for shade, but could have just gone with cardboard around the plant to cool the roots to help the plants. Container plants get hotter than ground planted ones...shade your pots, or sink them into the ground? Take those bad tomatoes off the vine, you lost them already
