hello! The shape of flat peach fruit is oblate, and the pulp between the top peel and the stone is very thin, so it is easy to cause fruit cracking due to factors such as irrigation in the fruit expansion period, drought in the young fruit period and rain after the skin is aging, or the daily change of temperature and humidity in the top peel. Prevention and control methods: first, pay attention to soil moisture and irrigate in time during the young fruit period to prevent the pericarp from aging caused by drought; Second, when thinning the fruit, pay attention to thinning the fruit with the top up, and select the fruit on both sides of the fruit branch and the fruit down; Third, fruit bagging can moisturize and tenderize the peel; Fourth, combined with measures such as spraying calcium fertilizer on the leaves, the fruit cracking of flat peaches can be alleviated. The peel of oil flat peach is more prone to aging and cracking, and fruit bagging is the most effective way to prevent cracking.