Will a late freeze in spring affect my apple crop?

FAQ
Question: 

Will a late freeze in spring affect my apple crop?

Answer: 

A late freeze in spring may damage the blossoms or developing fruit on apples, cherries, and other fruit trees.  As a result, the fruit crop may be smaller than normal.  The extent of damage will be determined by the plant species, stage of flower/fruit development, and temperature.  At petal drop on apples, a temperature of 28 degrees Fahrenheit will kill approximately 10 percent of the developing fruit while a temperature of 25 degrees will kill approximately 90 percent of the developing fruit.  

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