Has it gotten enough water? Be sure to water deeply. Was there a heat wave recently? The tree is clearly under some type of stress, whether from weather, pests, disease, or cultural or physical damage. Check the root zone—has there been any disturbance recently? If watering doesn’t work, and the trunk and branches don’t appear damaged, and the root zone is undisturbed, it might be a disease—several cause wilting/drying leaves in cherries, unfortunately. In this case, you might want to prune out dead branches. Also keep in mind that most sweet cherry varieties need to cross-pollinate with another cherry tree to produce fruit. If you know your cherry’s cultivar, check to see if it’s a self-pollinating variety, and if it’s not, you will need to get an additional tree.
Has it gotten enough water? Be sure to water deeply. Was there a heat wave recently? The tree is clearly under some type of stress, whether from weather, pests, disease, or cultural or physical damage. Check the root zone—has there been any disturbance recently? If watering doesn’t work, and the trunk and branches don’t appear damaged, and the root zone is undisturbed, it might be a disease—several cause wilting/drying leaves in cherries, unfortunately. In this case, you might want to prune out dead branches. Also keep in mind that most sweet cherry varieties need to cross-pollinate with another cherry tree to produce fruit. If you know your cherry’s cultivar, check to see if it’s a self-pollinating variety, and if it’s not, you will need to get an additional tree.