Salogga, D.S., and J.F. Seattle Public Utilities (Washington). A species profile for Dogwood Anthracnose. By 1995, the disease had been confirmed in northern Georgia (1987), western North Carolina (1988), and as far south as northern Alabama. Washington, DC: USDA Forest Service. Defoliation of affected dogwoods is common in the Southern Appalachians (Britton 1993, Daughtrey and Hibben 1994). 1994. Finding the disease distinct from other Discula spp. Invasive Species. Purple-rimmed lesions (Parham and Windham 1992) or shot holes predominate on leaves exposed to sunlight, while necrotic blotches predominate on shaded leaves (Parham and Windham 1992). Daughtrey, J.L., C.R. Landscape, Nursery, and Urban Forestry Program. Stem dieback from dogwood anthracnose (, Terrestrial (land-dwelling) invasive species, Aquatic (Water-Dwelling) Invasive Species, Public Outreach and Education Materials (Invasive species), Climate Change Impacts on Forest Diseases. Mey. There is only one genus of dogwood in Canada — Cornus — but its species come in a variety of shapes and sizes. 1988. Ophiostoma ulmi. Two years later, Pirone (1980) noticed a widespread and rapid deterioration of flowering dogwoods in New York and Connecticut (Fig. Amylostereum complex ... Dogwood Anthracnose Disease. Hibben, K.O. Visually appealing and magnets for wildlife, these plants are bound to please both the gardener and naturalist in you. Dogwood anthracnose in northeastern United States. Davidson, Jr. 1979. FS. Britton, and W.T. Northeastern Area State and Private Forestry. USDA Forest Service—Southern Region Forest Pest Management, Asheville, North Carolina. 1994). Ammirati. The health of southern forests. Buddleia davidii is not the only shrub that has turned out to be invasive. Leaves are dark green with bright yellow flowers. Chellemi, D.O., K.O. Select the non-indigenous forest pest to view maps depicting state and county distribution. Discula destructiva sp. Mycologia. Distinctive white flowers, 3″ in diameter, bloom mid-April to mid-May. Fall color is purplish to red. Redlin, S.C. 1991. Leaf symptoms on C. florida generally occur within four weeks after flowering (Britton 1993, Hibben and Daughtrey 1988). 1290. Dogwood anthracnose: understanding a disease new to North America. Nov., Cause of Dogwood Anthracnose. Dogwood; Hebes; Lavender (good for butterflies) Mahonia; Currants (Rubus) Thyme; Viburnums; Are there any other shrubs I should avoid? 4). Overall, vigorous trees tend to be less damaged than weak trees. Engaging and empowering the public to help find, map, and prevent invasive species in America's wilderness areas, wild rivers, and other natural areas. Cornell University. Amylostereum complex. Cornus florida, the flowering dogwood, is a species of flowering tree in the family Cornaceae native to eastern North America and northern Mexico.An endemic population once spanned from southernmost coastal Maine south to northern Florida and west to the Mississippi River. Windham. p. 42. Cooperative Extension Service. 3(2):20-21. is dogwood invasive. 1996. Discula destructiva is a fungus that has caused serious losses to North American native flowering dogwood (Cornus florida) and other native and introduced species (C. nuttallii and C. kousa, respectively) of dogwood found in the natural environment and in ornamental plantings. Parham, J.M. Montgomery, and K. Langdon. Find Free Themes and plugins. Control and eradication, a primary management goal, is an ongoing challenge. 1996). These were also the species on which the responsible agent for the disease was discovered in 2003 in a nursery in Lombardy, Italy, and in a private garden in Germany. Daughtrey, M.L. The Plants Database includes the following 29 species of Cornus .Click below on a thumbnail map or name for species profiles. 32:61-73. 365 (Abstr.). 2 and 3), (2) shot holes, (3) necrotic blotches at the leaf tip or along the blade periphery, or (4) blight of the entire blade (Hibben and Daughtrey 1988) (Fig. Canadian Forest Service. During that period, the number of plots with severe epidemics (more than 25 percent of foliage blighted) increased by 638 percent. The New York Times. An organization’s internal relationships and balance affect how the organization relates to its clients and the external environment. Redlin, S.C. 1991. It is native to Eastern North America and is hardy in USDA zones 4 to 8. Michigan State University. Dogwood anthracnose. In early autumn, it … Cooperative Extension Service. Windham, and S.C. Redlin. In general, damage is most severe at elevations above 3,000 feet, where forest and ornamental dogwoods may be eliminated. Cooperative Extension of Suffolk County. Center for Invasive Species and Ecosystem Health. Phytopathology. Dogwood anthracnose has been reported on over 12 million acres in 180 counties (Anderson et al. February 24: 34-37. 1992, Hoffard et al. Daughtrey, M.L., and C.R. 77:34-36. Invasive plants, animals and pests are taking a toll on Wisconsin's lakes, rivers and landscapes. The disease kills dogwoods of all sizes, but it is most severe on young seedlings. Lower branch dieback, a new disease of northern dogwoods. Plant Disease. Bugwood Wiki. Disease severity in the South seems to be more intense at higher elevations. Apply the mulch of your choice such as bark chips 3 to 4 inches deep over roots to hold in moisture. Byther, R.S. Maps can be downloaded and shared. Website developed by The University of Georgia - Center for Invasive Species and Ecosystem Health and the National Park Service in cooperation with the Invasive Plant Atlas of New England, Invasive Plant Control, Inc., USDA Forest Service, Dogwood anthracnose: understanding a disease new to North America. ... 12 Species of Dogwood Trees and Shrubs 7 Species of Daisies for Your Flower Garden 18 Species of Holly Plants The DNR is working with citizens and partners to slow the spread of invasive species. 1994. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture. Disease severity within infected areas also has increased rapidly. Britton, K.O. Hibben, K.O. University of Massachusetts Extension. Brown. dikti / Getty Images Latin Name: Various species of Lantana can be invasive. Or, to display all related content view all resources for Dogwood Anthracnose. Pirone, P.P. The flowering dogwood (Cornus florida) is the species most people think of when the word dogwood is mentioned.Although it is considered one of the favorite trees in the south, there are two other species, kousa dogwood (Cornus kousa) and Cornelian cherry dogwood (Cornus mas), which will grow in all areas of South Carolina except along the coast from Charleston to Savannah, Ga. Dogwood anthracnose and its spread in the South. It was first observed in 1976 affecting a population of Cornus nuttallii in Washington state (Byther and Davidson 1979). Plant Disease. As of 1999, anthracnose had killed 49.7 percent of the native dogwood trees in 24 western counties of North Carolina (USFS 2001). Plant Disease 80(4):349-358. Dogwood anthracnose is a relatively new disease to North America. Unfortunately, much of the lake is occupied by the two invasive species: Brazilian waterweed and parrotfeather. Provides state, county, point and GIS data. Ornamentals Northwest Newsletter. Top of page The North American species Cornus florida (flowering dogwood) and C. nuttallii (Pacific dogwood) are particularly susceptible. Discula sp. Phytophthora alni. 1996). Table 1 identifies a selection of alternative plants, trees and shrubs (categories A to M) that can be used in place of invasive species. The section below contains highly relevant resources for this species, organized by source. Dogwood - A Plant for all Seasons No matter where you live in Canada, chances are there is a dogwood for you. and C.R. 8 p. Windham, M.T., M.E. Large C. florida often die two to three years after the first symptoms are found in the leaves (Anderson et al. Latin Name Common Name . It grows up to a height of 4 to 15 feet, and its subgenera are Swida. Anthracnose infection of dogwood seedlings exposed to natural inoculum in western North Carolina. Found 59 Resources Page 1 of 1. For this reason, ornamentals grown in open, sunny sites are often disfigured without being killed. – roughleaf dogwood Subordinate Taxa. National Invasive Species Information Center, Alien Forest Pest Explorer (AFPE): Alien Pest Range Maps, Early Detection & Distribution Mapping System (EDDMapS) - Dogwood Anthracnose, Gallery of Pests - Dogwood Anthracnose Disease, Invasive Plant Atlas of the United States - Dogwood Anthracnose, Plantwise Technical Factsheet - Anthracnose of Dogwood (, Dogwood Anthracnose and its Spread in the South (PDF | 483 KB), How to Identify and Control Dogwood Anthracnose, Forest Invasive Alien Species - Dogwood Anthracnose, Dogwood Anthracnose - Integrated Pest Management Solutions for the Landscaping Professional (PDF | 100 KB), Fact Sheet: Dogwood Anthracnose (PDF | 245 KB), Ground Covers, Trees, Shrubs, and Woody Ornamentals Fact Sheets, Dogwood Anthracnose - Plant Pathology Fact Sheet (Nov 2005) (PDF | 205 KB), Diagnostic Facts: Dogwood Anthracnose (Mar 2002) (PDF | 746 KB), Anthracnose Diseases of Dogwood (PDF | 313 KB), Anthracnose of Flowering Dogwood (PDF | 424 KB), Discula "Dogwood" Anthracnose - Pest Fact Sheet 39, Fact Sheets - Diseases: Dogwood Anthracnose, Pacific Northwest Plant Disease Management Handbook - Dogwood (, Patterns of evolution in Discula fungi and the origin of dogwood anthracnose in North America, studied using arbitrarily amplified and ribosomal DNA, Dogwood anthracnose: understanding a disease new to North America. Species include the common dogwood Cornus sanguinea of Eurasia, the widely cultivated flowering dogwood (Cornus florida) of eastern North America, the Pacific dogwood Cornus nuttallii of western … Secondary cycles of leaf infection during rainy periods increase the impact of anthracnose on dogwoods (Britton 1993, Hibben and Daughtrey 1988). Stems show similar symptoms as seen in Figure 5 with a canker at the base of an epicormic branch and Figure 6 showing conidia (spores) exuded from a dead twig infected with Discula destructiva. Anthracnose infection of dogwood seedlings exposed to natural inoculum in western North Carolina. The various species of dogwood are native throughout much of temperate and boreal Eurasia and North America, with China, Japan, and the southeastern United States being particularly rich in native species. Invasive Listing Sources: Website developed by The University of Georgia - Center for Invasive Species and Ecosystem Health and the National Park Service in cooperation with the Invasive Plant Atlas of New England , Invasive Plant Control, Inc. , USDA Forest Service , Cooperative Extension. Below 3,000 feet, damage is most severe on moist, cool sites such as northeast-facing slopes (Chellemi et al. It produces an abundant display of yellowish-green flowers in spring and pinkish-red berries in summer. Of the 17 species of dogwood native to North America, the four most common garden types are native flowering dogwoods, Pacific dogwood, Cornelian cherry dogwood and kousa dogwoods. This plant has no children Legal Status. 1994, SAMAB 1996). Drought and winter injury appear to increase susceptibility (Daughtrey and Hibben 1994). The bark is grey and smooth with shallow ridges which develop with age, and its twigs are smooth, straight and slim. Britton et al. Images of dogwood anthracnose symptoms. Plant Disease. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely. In the eastern United States, the disease has spread rapidly down the Appalachians, primarily on Cornus florida, the eastern flowering dogwood. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar. Results of the 1991 dogwood anthracnose impact assessment and pilot test in the southeastern United States. Oregon State University. The dogwoods are distinguished from other flowering shrubs by the clusters of small, 4-petaled white flowers and opposite (except for 1 species) leaves that are toothless and have prominent, arching, lateral veins. In the GSMNP, it is estimated that more than 90 percent of the dogwoods have died in heavily shaded cove and alluvial forests. 1). Through educational outreach, strategic planning and active management we are … nov., cause of dogwood anthracnose. 1996). Green Gardening Program. Their loss could hasten soil acidification, reduce nutrient availability, and influence numerous ecological relationships (Daughtrey and Hibben 1994). Adapted for eXtension.org by Thomas DeGomez, University of Arizona. 2015-41595-24254 from the USDA National Institute of Food and Agriculture. Natural Resources Canada. References Cited Extension Service. In 1983, the fungus associated with the anthracnose on C. nuttallii was identified as a species of Discula, and flowering dogwood ( Cornus florida) and Japanese dogwood ( Cornus kousa) were noted as minor hosts (Salogga and Ammirati 1983), but C. Florida is now known as a major host that is impacted by this disease. Cornus kousa, C. alternifolia and C. amomum are reported as relatively resistant (Sherald et al., 1994). Annual Review of Photopathology. Researchers also speculate that climatic changes and droughts may have predisposed trees to infection, thus causing coincidental outbreaks in the Northeast and the Pacific Northwest (Anderson et al. Although the origin of dogwood anthracnose is unknown, the results of DNA analysis combined with its rapid spread have led many to conclude it was introduced (Daughtrey et al. In the Southern Appalachians, mortality is most likely at elevations above 3,000 feet. Dutch Elm Disease. Erythrina Gall Wasp. The .gov means it’s official.Federal government websites always use a .gov or .mil domain. Center for Integrated Plant Systems. Atlanta: U.S. Department of Agriculture, Forest Service. 83:633-642. The decline of dogwood populations resulting from dogwood anthracnose has several serious impacts in the Southern Appalachians. ... Bill was responsible for our invasive species strategy and deployment while I was at The Nature Conservancy. Britton, M.T. Plant Disease. Hibben. University of Georgia. USDA. Figure 1. Northern Swamp Dogwood. In native habitats such as sedge meadows and fens in North America, C. sericea colonizes far from clones of shrub by seed, but also advances via spreading (B Middleton, National Wetlands Research Center, Louisiana, USA, … Plant Disease. C. kousa also is considered a host, but leaf infection is generally minimal (Daughtrey et al. Hoffard, W.H., D.H. Marx, and H.D. Influence of site factors on dogwood anthracnose in the Nantahala Mountain range of western North Carolina. 1992. Introduced, Invasive, and Noxious Plants : Threatened & Endangered: Wetland Indicator Status : 50,000+ Plant Images ... Cornus L. – dogwood Species: Cornus drummondii C.A. Fungal disease of flowering dogwood (Cornus florida) and Pacific dogwood (Cornus nuttallii) trees (Daughtrey et al. Internal relationships and balance affect how the organization relates to its clients and the external environment than... 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