Spotting on malabar spinach after house was tented
This might be one of a few fungal leaf spots caused by Bipolaris, Colletotrichum, or Septoria fungi. I don't think it has anything to do with the tenting. If you are growing it as an edible crop, you could apply a fungicide labeled for edible leafy vegetables. If you are only growing it for ornamental use, you can apply products for ornamentals with fungal leaf spots. Either way, cutting it back and keeping the new foliage dry should help. Cut it back and remove the severely affected leaves, and then apply fungicides if you want to, or just cut it back and destroy all affected leaves and see how it bounces back. Be careful not to overwater after you cut it back, and keep irrigation off the leaves (wet leaves = fungal diseases).