Tar leaf spot diseases that occur on our native maple species are occasionally observed, but cause inconsequential damage. Thank you for reading! We have used your information to see if you have a subscription with us, but did not find one. This is not the place to sell miracle Norway maple Acer platanoides Fact Sheet Description: Large deciduous tree 60' high by 40' wide. No repetitive posts, please. The larvae emerge from eggs laid on the samara and tunnel to the seeds. Removing the leaves to a municipal composting facility is also recommended. No vulgar, racist, sexist or Reach jobseekers in print and online. Woolly Alder Aphid; Giant Bark Aphid; Cottony Maple Scale; Oystershell Scale; Yellowbellied Sapsucker; Scale Insects; Norway Maple Bark - Photo by Paul Wray, Iowa State University Silver, red, sugar, sycamore and Japanese maples are also susceptible. Engage ideas. Crimson King maple trees can become infected by aphids, soft-bodied insects that suck the sap of the stems and leaves. The tar spots that can occur on sugar maple, red maple, and our other native maple species is caused by one of two other species of Rhytisma (R. americanum, and R. punctatum). Similar to many such plants, its invasive tendencies didn’t become noticed until much later. Norway maple. If composting the leaves on-site, the leaf piles should be buried, or covered with a thin layer of soil or a dense layer of grass clippings or other compost, to prevent the fungus from spreading next spring. Local news and analysis â and much more. Thank you for reading! posts. Recent updates from The News-Post and also from News-Post staff members are compiled below. These trees produce ample amounts of winged seed which are dispersed readily in the wind and germinate quickly. Keep it clean. Augusta, ME 04333 Share unlimited digital access with 4 family membersâ¦ join now. Be civil. Help us. Trees are spread by seed. No trolling. DACF@Maine.gov. It is caused by dry w… The larvae of a number of species of Lepidoptera feed on Norway maple foliage. Limitations: Caution: Norway maple is extremely aggressive in regards to the fact that it takes over native ecosystems; as a result, it has been listed as an invasive species and should not longer be planted in urban areas. Scorch symptoms tell us that one or more of the following factors are affecting the tree: 1. Long periods of wet weather including fog, mist and rain, and other conditions that retard leaf drying such as dense continual shading or cloudy weather highly favor the leaf infection process. Norway maple is an exotic tree species. Log in.). 5, 2009). Email firstname.lastname@example.org. The Norway maple is a hardy tree that thrives much better than our domestic sugar maple in harsh urban conditions. Aphids are controlled by spraying or they may be left alone. Leaf Scorch: On maple (Acerspecies) trees a number of problems cause symptoms that are generally classified as leaf scorch. 3. Many Norway maples made their way from Europe to the United States by being transplanted as ornamental specimens or by having individual seeds escape cultivation. Checking back? No spamming. All species of maples in Maine can be affected by tar spot, but the particular pathogen that is most damaging to Norway maples is Rhytisma acerinum. Maple Insects & Diseases. ... Norway maples seem especially sensitive to infection by Verticillium. Leaf infection can begin in early spring, as the leaves are expanding, and can continue into the early summer. The maple callus borer is the larvae of a clearwing moth. This âshade tolerantâ plant will continue to grow throughout the understory and will eventually gain a stronghold in the main canopy once an opening occurs.
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