Mild frost may produce shoot dieback and browning of the seed coat. Young fruit may drop.
To reduce the likelihood of frost injury, conserve heat by keeping the vegetation under trees mowed short,
so that the soil surface is firm and moistened. If overhead sprinklers are available, use them on stone
fruits to prevent frost injury when low temperatures occur during bloom. Trees can be protected from frost
injury by covering them with floating row cover or using protective shelters if freezing conditions occur
during bloom or early fruit growth. These covers should be prevented from touching the tree.
injury to nectarine blossoms