Please take a sample of what appear to be insects on the twig, along with some dead twigs and leaves to the plant clinic at the OSU Extension office at 569 Hanley Road (Rte 238), Central Point.They can examine the twig and leaves and insects under a microscope for a definite identification. Conclusion. Indeed, the insects on the twig appear to be soft scale insects. Native to Eastern Asia, Japan. It is reportedly risky to transplant in the fall. The Keakies were introduced to America in the middle of the 18th Century. As mentioned, the Wireless Zelkova Growth Rate is pretty quick. We do notice that the tree looks like it has been planted too deeply. These are usually 25 feet tall and 20 feet wide. The Wireless Zelkova is selected for its low height and broad spreading shape. Many arborists recommend Zelkova as a replacement for the American Elm, because it offers a similar look and is resistant to Dutch Elm disease. The leaf margins are sharply serrated. They are a preferable choice to enhance the beauty of lawns and gardens while using lesser space as compared to others. The peeling bark on older trees exposes orange patches, which can be quite impressive. This allows a firm and supported structure of the tree. Grows to a height of 24ft. Once you’re prepared to make an informed decision for your particular needs, select … Selecting Trees Read More » It is noted for its graceful shape, clean foliage, attractive bark and resistance to Dutch elm disease. The Zelkova Serrata Wireless: One famous Zelkova is the Wireless Zelkova which is a shorter variety and a mature tree grows up to 25 feet in height and spreads in a vase-like shape of about 35 feet in width. Even with its limited height the branching begins high enough up the trunk to allow people and equipment to pass easily underneath. Search on zelkova disease, wooly elm aphid, common nursery pests, and phytophera sem-rot to access materials that may be helpful in identifying your problem as well as treatments you can use to rid the tree of the problem.Access these materials at pnwhandbooks.org. It is very tolerant of different soil conditions and has excellent fall color. At Zelkova Ventures, we’re passionate about assisting in the growth of businesses.We roll up our sleeves and partner with our portfolio companies for success. There are many factors specific to your landscape to consider in order to make an appropriate selection. It is adaptable to hardiness zones 5 to 8. In fall, foliage turns red. Fast growth rate. The website, from Ohio state University, also mentions possible treatments to rid the tree of the problem. Tolerant of cold (to -20°F), drought, humidity, wind, compacted soils, and pollution. The Wireless Zelkova is one such tree which became famous due to its suitability for urban societies. Related to Elm Trees, but very resistant to Dutch Elm disease, it has gotten much more popular in this country since the arrival of that devastating disease many years ago. Here is some detailed information on the zelkova tree. Common cultivars of Zelkova, are mentioned below along with their main features; This variety is Oval shaped and the leaves turn yellow in the fall. Broadleaf deciduous tree, 50-60(80) ft [15-18(24) m], vase-shaped, low branched. The Green Vase® Zelkova has everything you could ever want in a shade tree, from its ornamental interest in every season and pest and disease resistance to hardy, tolerant growth. Problems. The phone is 541-776-7371 for further information on how to get a sample to the clinic if you cannot go in person. Bark is smooth and gray in youth, and reveals a rusty-brown color with age. The foliage is green in summer, while the autumn turns it into a small reddish tree that looks impressively pretty. Zelkova Tree Facts and Info. Wireless Zelkova is a cultivar of the six species-genus Zelkova Serrata belonging to the botanical family Ulmaceae. The trees are deep-rooted. This variety is wider as compared to others and is usually 40 feet in width. The winter turns the foliage into reddish shades. It also makes a good substitute for American elm, as it is resistant to Dutch elm disease. This is the unique growth pattern of the tree that the branches are only grown near the foliage and not in the trunk. Buying Zelkova Trees at The Tree Center. @2020 - Gardening Brain. The clinic is open Monday through Friday, 10 to 2. Hope you are still tuned in. The yearly selection must be adaptable to a variety of harsh urban growing conditions and have strong ornamental traits. Either can cause twig die-back and ultimately leaf death. Jean suggests you view the following website about "Calico scale" to compare both photos and description of the insects on your tree. The Wireless Zelkova is a spreading vase-shaped tree. 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