Answer: It is a good idea to protect with frost cloth if frost is predicted, but to take it off during the day. You don't want temperatures to heat up too much beneath the covering. You also want pollinators to have easy access to the flowers. You can download this free publication from the University of Arizona Cooperative Extension, written by Lucy K. Bradley. It contains details on the best way to cover fruit trees. Good luck!
Search on Title: 'frost' and Type: 'Gardening/Home Horticulture' to pull up Publication #1022, Frost Protection.
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