![]() This disease is most often found in pear, apple, loquat and crabapple trees and has become a nuisance to homeowners and commercial landscape managers. of Plant Pathology & environment Microbiology Archives, Penn State University., .įigure 8: Courtesy of Florida Division of Plant Industry, Florida Department of Agriculture and Consumer Services, įigure 9: Courtesy of Florida Division of Plant Industry, Florida Department of Agriculture and Consumer Services, įigure 10: Courtesy of Brian Olson, Oklahoma State University, Bugwood. Fire blight is the most damaging bacterial disease that affects shrubs and trees in the Rosaceous family during warm spring weather combined with rains or heavy dews. Jones, Michigan State University.įigure 6: Courtesy of Florida Division of Plant Industry, Florida Department of Agriculture and Consumer Services, įigure 7: Photo by Penn State Dept. Wallace, University of Georgia, .įigure 3: Courtesy of Mary Ann Hansen, Virginia Polytechnic Institute and State University įigure 4: Courtesy of Guido Schnabel, © Department of Agriculture & Environmental Sciences, Clemson University.įigure 5: A.L. Notify us immediatelyįigure 1: Courtesy Jody Fetzer, Maryland National Capital Park and Planning Commission, įigure 2: courtesy of Rebekah D. There's no single effective treatment for fire blight. bacterial exudate can be dispersed locally by wind, rain, insects and birds.surface injuries caused by insect feeding, hail or mechanical damage.blossoms where the bacteria is transported by bees during pollination.Plants can become infected in the following ways: ![]() ![]() some cane fruits and other ornamental plants (Figure 10).įire blight seriously affects fruit production worldwide.red-brown discolouration of the sapwood.discoloured sunken areas or cankers on branches, limbs and trunks (Figure 7).bacterial ooze in warm, humid weather (Figures 5 and 6) Treatments can range from foliar sprays to protect the blossoms and branches, to trunk injections to reduce the severity of the shoot blight stage and leaf.shoots and branches bent into a 'shepherd's crook' shape (Figures 3 and 4).leaves remain attached to stems (Figure 2).brown wilting of blossoms, shoots and leaves, with a scorched appearance (Figure 2).trees appear to have been ‘scorched’ by ‘fire’ (Figure 1).The following symptoms can indicate fire blight: See Plant Health Australia for more information. If you suspect you have fire blight, please notify us immediately. Fire blight is a bacterial disease caused by Erwinia amylovora.
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