Informational table showing disease name, symptoms, pathogen/cause, and management of Mountain Ash diseases. Anthracnose. The emerald ash borer (Agrilus planipennis Fairmaire) is a shiny emerald green beetle that kills living ash trees. Penn State University, for example, has lost 95 percent of the ash trees that forest biologist Dr. Kim Steiner planted in a 2,100-tree experimental green-ash … It is caused by a fungal infection that goes by the name of Chalara Fraxinea , or C. Fraxinea for short. (See the page on diseases of ash trees for some additional information) Shoots (suckers) at base of trunk. The beetle arrived in North America from Asia and was first noticed in 2002 in Detroit, Epicormic Sprouting: When trees are stressed, they may try to grow new branches and leaves wherever they still can (suckering). Judging from your description, most likely your tree has a disease called ash decline. It is rapidly advancing toward Arkansas. Damage As evident by the name, Ash Dieback is typically a disease that is common with Ash trees. Ash (genus Fraxinus) is found throughout many of the forests in eastern North America and it is a commonly planted street and landscape tree. EAB kills trees in 2 to 4 years after initial infection. ... Dead leaves and aborted flower parts remain on the tree. Created with Sketch. Cedar-Apple RustThis disease impacts ornamental apples as well as fruit trees. Anthracnose is a disease from a family of fungi that cause sunken dark lesions or cankers on leaves, stems, flowers, and fruits of trees and shrubs. It has killed millions of trees in the Midwest and is slowly spreading across the country. Anthracnose Disease of Common Landscape TreesAnthracnose diseases can impact many types of landscape trees. Emerald Ash Borer is a dangerous insect that has killed millions of trees across the country since the fatal pest first appeared in 2002. Fusiform Rust in ArkansasThis invasive pest has nearly eliminated ash trees in some parts of the U.S. The origins of the disease are still unknown, but scientists have suggested the disease may have been introduced to Europe from eastern Asia. Stressed ash trees may have new growth at the base of the trunk or on main branches. Ash trees across the state are dying at an alarming rate, with little sign of the infestation slowing down. This disease primarily causes the tree to shed its leaves, with visible lesions in the stem that look a burn, and crown dieback. Informational table showing disease name, symptoms, pathogen/cause, and management of Mountain Ash diseases. A destructive metallic green beetle, emerald ash borers (EAB) invade and kill all types of ash trees, Fraxinus species. Anthracnose actually means “ulcer-like sore,” and that is why it describes a family of fungal infections because it is based on the symptom rather than the specific fungus. 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