![]() In terms of their cultural needs, they are very similar and their primary ornamental value revolves around the “smoke-like”, fluffy flowers that extend interest well in to summer. The American smokebush ( Cotinus obovatus), native to the Southeastern United States from Tennessee to Alabama and west to Oklahoma and Eastern Texas is commonly available as are the many cultivars of European smokebush ( Cotinus coggygria) which is native from Southern Europe to Central Asia and Northern China. Other varieties below are identified under the photo. Directly above is the variety ‘Royal Purple’ which is one of the more commonly available selections. At the top of this blog is the variety ‘Grace’ which is a hybrid between American smokebush ( Cotinus obovatus) and ‘Velvet Cloak’ European smokebush ( Cotinus coggygria). This blog includes many photos of this plant that I’ve taken over the years and represents some of the fun selections that are available for the home gardener. Microscopic examinations, laboratory culturing, virus assays, and nematode assays are some of the techniques used in the clinic.I’ve always appreciated the value of smokebush (also called smoke tree) out in the landscape as a solidly performing woody plant with plenty of “curb appeal”. Services include plant and insect identification, diagnosis of disease, insect, weed and chemical injury (chemical injury on field crops only), nematode assays, and help with nutrient related problems, as well as recommendations involving these diagnoses. Some samples may require further examination or culture work (nominal fee involved) at the U of IL Plant Clinic. Center Educators or State Specialists review & respond to information and digital images submitted by local Extension office personnel. U of IL - Distance Diagnosis through Digital ImagingĪ free plant, weed, insect and disease identification service available through your local University of Illinois Extension office. This publication may be purchased at your local University of Illinois Extension Unit office, or by calling 80, or by placing an order online (search for "ICLT"). ![]() ![]() The Illinois Commercial Landscape and Turfgrass Pest Management Handbook (ICLT) is written for professional applicators and provides nonchemical and current chemical recommendations as well as application timing information for all major pests of turf, woody ornamentals and herbaceous ornamentals. Illinois Commercial Landscape and Turfgrass Pest Management Handbook This publication may be purchased at your local University of Illinois Extension Unit office, or by calling 80, or by placing an order online (search for "C1391"). ![]() In addition, you'll find detailed information about integrated pest management, pesticide safety, and pesticide application and calibration techniques. The Home, Yard & Garden Pest Guide (C1391) provides is written for homeowners and other residents and provides nonchemical and current chemical recommendations for controlling pests associated with trees, shrubs, turf, flowers, groundcovers, vegetables, fruit, and houses.
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