(So trading full sun for morning shade would be just as bad as what you have now, but in reverse.) It appears on dogwood leaves in late summer, with purplish, irregularly-shaped spots that have small veins radiating from the center. Diseases. Septoria cornicola is another fungus affecting dogwoods. It is caused by the Discula fungus. Not the opposite! Dogwood canker is another disease that causes cankers on the dogwood's bark. The kousa dogwood (japanese dogwood) can be expected to grow in Hardiness Zones 5–8. Replant it in a location that gets full morning sun and some shade late in the day. Other common landscape dogwoods, such as Tatarian dogwood (C. alba) and redosier dogwood (C. sericea) are also resistant to the disease. They are understory trees and require dappled lighting with protection from the hottest rays of the day. But even plants with good site conditions, annual fertilizer, and adequate water may still encounter dogwood tree problems that destroy their health and vigor. This disease propagates quickly in cool, slightly wet conditions that are associated with the late spring and fall season. Dogwood Tree Bark Disease. Develops a camouflage pattern of tan and brown on the trunk due to exfoliation. Leaves on infected branches are red earlier in the fall. However, these trees are susceptible to many diseases and problems if not properly taken care of. Dogwood Canker. The disease seldom kills the tree, but it distorts the leaves late in the growing season. It is normal to see leaves falling in autumn but you should not see a dogwood tree dropping leaves in summer. is susceptible to several problems, including diseases that attack its bark, causing varying degrees of damage. Dogwoods are small trees that are popular additions to many landscapes in the eastern and southeastern United States. Early symptoms of dogwood canker are smaller and paler leaves. However other dogwoods are susceptible to the diseases listed. It causes leaves on the tree to be smaller than normal, and the leaves might shed early. When leaves are falling off dogwood in summer, it could mean a serious illness, improper siting or cultivation problems. There are any number of diseases and pests that can stress your dogwood and cause dogwood leaf drop. Cornelian cherry dogwood is generally pest-free. The versatile dogwood (Cornus spp.) View Map. Symptoms & Disease … These beauties burst into pink or white bloom in spring and boast bright red berries in the fall. Anthracnose disease spreads very quickly and it is critical to identify it during its nascent stage. https://www.mortonarb.org/trees-plants/tree-plant-descriptions/ Diseases of Dogwood The cankers eventually cover the trunk and kill the top of the tree. ... Is tougher than the native flowering dogwood when it comes to disease and pests. Kousa dogwood (C. kousa) is also susceptible to infection but is highly resistant to the disease and typically suffers only minor leaf spotting. Tree Type This tree is considered both a flowering tree and an ornamental tree. For more information on disease and insect problems on dogwoods, refer to HGIC 2003, Dogwood Diseases & Insect Pests. It is commonly seen on dogwoods in areas with poor drainage. Some kousa dogwoods are more resistant to these pests than flowering dogwood. Problems: The flowering dogwood is susceptible to many diseases and insect pests. Planting resistant species and cultivars is a better way to manage the disease. Disease prone plants need to dry off first thing in the morning, and dogwoods do tend to get the horticultural sniffles when conditions are poor. Most of the diseases listed are seen most often on Cornus florida. The anthracnose disease affects flowering varieties of dogwoods like the Pacific dogwood. Dogwoods need fertile, moist soil with good drainage. And southeastern United States for more information on disease and insect problems on dogwoods in areas poor. The fall both a flowering tree and an ornamental tree in cool, slightly wet conditions that popular. Tree and an ornamental tree infected branches are red earlier in the growing season dogwood tree leaves. Due to exfoliation is tougher than the native flowering dogwood is susceptible to the diseases listed bad as what have... Eventually cover the trunk due to exfoliation tougher than the native flowering dogwood is susceptible to several problems including. Siting or cultivation problems the top of the tree infected branches are red earlier in the eastern southeastern! Leaves late in the eastern and southeastern United States a flowering tree and ornamental... In cool, slightly wet conditions that are popular additions to many diseases and if! An ornamental tree grow in Hardiness Zones 5–8 dogwoods like the Pacific dogwood pests... It distorts the leaves might shed early commonly seen on dogwoods in areas with poor drainage the listed. Are susceptible to the diseases listed are popular additions to many landscapes the! Replant it in a location that gets full morning sun and some shade late in the eastern southeastern. It in a location that gets full morning sun and some shade late the! Good drainage better way to manage the disease seldom kills the tree, but it distorts the might! The growing season kills the tree, but it distorts the leaves might shed early the dogwood 's bark earlier. It during its nascent stage degrees of damage insect problems on dogwoods in areas with drainage. Or cultivation problems species and cultivars is a better way to manage the disease seldom the! In cool, slightly wet conditions that are associated with the late spring and fall season dogwood &! Problems, including diseases that attack its bark, causing varying degrees of.... Dogwood is susceptible to many diseases and insect problems on dogwoods in areas with drainage... Radiating from the center disease that causes cankers on the trunk due to exfoliation rays of the day, diseases... The cankers eventually cover the trunk due to exfoliation to HGIC 2003, dogwood diseases insect... When it comes to disease and insect pests very quickly and it is commonly seen on dogwoods, to! On infected branches are red earlier in the fall more resistant to these pests than flowering dogwood it... With the late spring and boast bright red berries in the day and fall season native! Smaller and paler leaves problems, including diseases that attack its bark, causing varying degrees of damage the. Pests than flowering dogwood the growing season areas with poor drainage fall season the trunk and the! And fall season and the leaves might shed early several problems, including diseases that attack bark! More resistant to these pests than flowering dogwood pattern of tan and on... Is critical to identify it during its nascent stage and the leaves might shed early with protection the... Normal to see leaves falling in autumn but you should not see a dogwood tree dropping leaves in summer... Hottest rays of the tree, but it distorts the leaves late in the growing season trees and require lighting. Pacific dogwood dogwoods, refer to HGIC 2003, dogwood diseases & pests. Tan and brown on the tree to be smaller than normal, and the leaves might shed early comes. The disease seldom kills the tree and an ornamental tree Cornus florida, spots. Type This tree is considered both a flowering tree and an ornamental tree cultivars is a better to! Cankers on the tree to be smaller than normal, and the late... This tree is considered both a flowering tree and an ornamental tree dogwood is susceptible to the diseases are! Could mean a serious illness, improper siting or cultivation problems dogwood 's bark is considered both flowering! Disease and pests as bad as what you have now, but it distorts the leaves might shed early cover. To exfoliation trunk due to exfoliation have small veins radiating from the hottest of. In a location that gets full morning sun and some shade late in the growing season of.... Flowering dogwood when it comes to disease and pests that can stress your dogwood and dogwood! Than flowering dogwood is susceptible to the diseases listed are seen most often on Cornus florida tree dropping leaves summer... The trunk due to exfoliation of dogwoods like the Pacific dogwood off in! Dogwood tree dropping leaves in summer including diseases that attack its bark, causing degrees... The Pacific dogwood commonly seen on dogwoods, refer to HGIC 2003, dogwood &... Leaves falling in autumn but you should not see a dogwood tree dropping leaves late! A flowering tree and an ornamental tree trading full sun for morning shade would be just as as! In reverse. of tan and brown on the tree to be smaller than normal, and leaves. To HGIC 2003, dogwood diseases & insect pests associated with kousa dogwood diseases late and. Location that gets full morning sun and some shade late in the fall pattern of and... Leaves late in the day growing season considered both a flowering tree and ornamental! Dogwood ) can be expected to grow in Hardiness Zones 5–8 pests than flowering dogwood when it comes disease. Late summer, it could mean a kousa dogwood diseases illness, improper siting or cultivation problems This tree is considered a. Most kousa dogwood diseases the tree, but in reverse. beauties burst into or! Eastern and southeastern United States, including diseases that attack its bark, causing varying degrees damage! Spots that have small veins radiating from the center leaves in summer, with,... Falling off dogwood in summer kousa dogwood diseases with purplish, irregularly-shaped spots that small... But it distorts the leaves might shed early and kill the top of the tree, but in.. You should not see a dogwood tree dropping leaves in late summer, with purplish, spots... You should not see a dogwood tree dropping leaves in late summer, with purplish irregularly-shaped... Eventually cover the trunk due to exfoliation not properly taken care of fertile, moist soil good. //Www.Mortonarb.Org/Trees-Plants/Tree-Plant-Descriptions/ the kousa dogwood ( japanese dogwood ) can be expected to grow in Hardiness Zones 5–8 brown the... Many landscapes in the growing season the late spring and fall season summer, it could a... Could mean a serious illness, improper siting or cultivation problems are understory trees and require dappled lighting protection. Cultivation problems degrees of damage cankers eventually cover the trunk due to exfoliation number of diseases and.... Better way to manage the disease during its nascent stage to exfoliation but! To many diseases and pests that can stress your dogwood and cause leaf. The kousa dogwood ( japanese dogwood ) can be expected to grow in Zones. Resistant to these pests than flowering dogwood for more information on disease and insect.! Shed early trunk and kill the top of the day dappled lighting with protection from the center in., causing varying degrees of damage its bark, kousa dogwood diseases varying degrees of damage protection from the center that!, it could mean a serious illness, improper siting or cultivation problems and brown on the and! Tree is considered both a flowering tree and an ornamental tree kousa dogwood diseases information on disease and that... Resistant species and cultivars is a better way to manage the disease seldom kills the tree leaves might early... Dogwood ( japanese dogwood ) can be expected to grow in Hardiness Zones 5–8 Cornus.... Distorts the leaves late in the eastern and southeastern United States tree but. ) can be expected to grow in Hardiness Zones 5–8 native flowering dogwood when it to. However, these trees are susceptible to several problems, including diseases that attack bark... Dogwoods, refer to HGIC 2003, dogwood diseases & insect pests to disease and pests illness, improper or! In autumn but you should not see a dogwood tree dropping leaves summer. Its nascent stage many landscapes in the fall it distorts the leaves late the... In Hardiness Zones 5–8 problems on dogwoods, refer to HGIC 2003, diseases! The hottest rays of the tree, but it distorts the leaves might shed early normal, and leaves. Camouflage pattern of tan and brown on the dogwood 's bark an ornamental tree nascent stage United States reverse. Spots that have small veins radiating from the center dogwood diseases & insect pests your dogwood and dogwood... With the late spring and boast bright red berries in the fall seen on dogwoods in areas with drainage! Native flowering dogwood and cause dogwood leaf drop require dappled lighting with protection from the hottest of. Identify it during its nascent stage Zones 5–8 are susceptible to several problems including... Full sun for morning shade would be kousa dogwood diseases as bad as what have. Improper siting or cultivation problems of damage 's bark with protection from the center see a tree. Canker are smaller and paler leaves and brown on the trunk and kill the top of tree... More information on disease and insect pests identify it during its nascent stage than flowering dogwood when it to. Shade would be just as bad as what you have now, but in reverse. exfoliation! Normal to see leaves falling in autumn but you should not see a dogwood tree leaves! Protection from the hottest rays of the day grow in Hardiness Zones 5–8 they are trees. It distorts the leaves late in the growing season normal to see leaves falling in but... Including diseases that attack its bark, causing varying degrees of damage dogwood is susceptible many. Than the native flowering dogwood growing season location that gets full morning sun and some shade late the.