Contact Us (616) 866-9317. Even before the onset of emerald ash borer, concerned arborists had put a moratorium on ash and maple planting and begun planting less common trees. Branches and buds are directly across from each other and not staggered. 2. We were just learning our native trees and I remember my professor saying, “You can kiss your ash goodbye.” Along with the opposite branching and compound leaves, D-shaped exit holes were becoming an identifying characteristic. More than 60 million ash trees, ranging from one inch to five feet in diameter, have been killed by EAB in this area alone. Leaves are compound and composed of 5-11 leaflets. Author: Scientific Name: Fraxinus americana. Bright green in color and about a half inch in length, the Emerald Ash Borer (EAB) only attacks ash trees and is a devastating and destructive pest that greatly affects the urban forest. The 4-H Name and Emblem have special protections from Congress, protected by code 18 USC 707. https://www.canr.msu.edu/resources/ash_tree_identification_e2942 They have steadily moved across the country, literally killing every single untreated ash tree along the way. White Ash. Fruit is a large dark brown nut inside a green husk. When present on trees, seeds are dry, oar-shaped samaras. 1. Choose from this list and score one for diversity. The first time I heard of emerald ash borer (EAB) was in my dendrology class in 2009 at Michigan State University. Basswood Trees. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Effective October 1, 2018, the Michigan Department of Agriculture and Rural Development (MDARD) repeals its Emerald Ash Borer (EAB) Interior Quarantine. Fraxinus excelsior L., the European ash, is sometimes planted and may be found in Michigan as it is known to escape in adjacent Ontario. Next, weigh the cost of treatment versus the value of the tree. Me, like so many have really not paid attention to what is happening to our ash trees. The first juvenile leaves on seedlings are simple, and rare mutant trees may bear simple leaves. Red and eastern white pines can be found in the southern half where the forests change from northern hardwood type to old growth pine forests. Fraxinus in Michigan and surrounding areas are being devastated by the emerald ash borer (Agrilus planipennis), an Asian insect first discovered in North America in southeastern Michigan in 2002. It has a broadly winged linear-oblong fruit like that of F. quadrangulata and F. nigra, and likewise lacks a calyx; it has sessile leaflets, like those of F. nigra, but the rachis of the leaf is glabrous where the leaflets attach, not with the characteristic tomentum of F. nigra. Isolated populations exist in Alabama, Southern Ontario, and small sections of the Appalachian Mountains. Ash Tree Identification MSU is an affirmative-action, equal-opportunity institution. Branchlets ± sharply 4-angled or even slightly winged, with flattish sides. The first cases were found in Michigan in 2002 but since then it’s spread to neighboring states and is likely to keep expanding its range. Only true ash are susceptible to attack by emerald ash borer. Leaflets green beneath, not papillose, the lateral ones on petiolules rarely as long as 5 mm (usually shorter and often winged to the base, but much longer in the rare F. profunda); leaves and young twigs densely pubescent to glabrous; samaras with distended portion ca. Adults typically only fly about ½ mile. Red maple, green ash and silver maple account for over half the volume. When looking for opposite branching in trees, please consider that buds or limbs may die; hence not every single branch will have an opposite mate. Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Tree planting became a matter of mixing species within a city block, rather than planting lines of hundreds of the same species, even the same clone of a species. Tree bears clusters of creamy white flowers in May. Branching is alternate and the leaves are simple with an unequal leaf base. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. At Michigan state University trees ( left ) and green ash ( Sorbus americana ) trees its! 7 leaflets, but the plant has an alternate branching habit 4 ) leaflets pubescent beneath of Michigan Ohio. 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