Pests and Potential Problems: The most common Prepared By: Richard L. Wynia, USDA-NRCS Plant disease problems of hawthorn are rust, fireblight and leaf Materials Center, Manhattan, KS. spot. Rust and leaf spot are caused by fungi and fireblight is a bacterial disease. Cedar hawthorn rust is a – particularly troubling problem in landscapes where Citation Juniper species are planted near hawthorn species. The Wynia, R.L. 2010. Plant fact sheet for Kansas hawthorn disease requires both plant species to complete its life (Crataegus USDA-Natural Resources coccinioides). cycle and the hawthorn species is devastated with foliage Conservation Service, Manhattan Plant Materials Center, destruction to the point that the plants may be severely Manhattan, KS 66502 defoliated by late in the growing season. This combination of plant species should not be used in the Published October 2009 : same landscape planting. Edited: [e.g., 08Sep2009 rg, 08Sep2009 jfh; 17Sep2009 Insect pests are not a serious problem on Kansas jfe] hawthorn, but may cause leaf and fruit damage on the tree. For more information about this and other plants, please Cultivars, Improved, and Selected Materials (and area contact your local NRCS field office or Conservation of origin) District <>, and visit the PLANTS Web site <> or the Consult local nurseries to choose the right cultivar for Plant Materials Program Web site <> your intended use of the plant material. USDA IS AN EQUAL OPPORTUNITY PROVIDER AND EMPLOYER
Pests and Potential Problems: The most common disease problems of hawthorn are rust, fireblight and leaf spot. Rust and leaf spot are caused by fungi and fireblight is a bacterial disease. Cedar – hawthorn rust is a particularly troubling problem in landscapes where Juniper species are planted near hawthorn species. The disease requires both plant species to complete its life cycle and the hawthorn species is devastated with foliage destruction to the point that the plants may be severely defoliated by late in the growing season. This combination of plant species should not be used in the same landscape planting. Insect pests are not a serious problem on Kansas hawthorn, but may cause leaf and fruit damage on the tree. Cultivars, Improved, and Selected Materials (and area of origin) Consult local nurseries to choose the right cultivar for your intended use of the plant material. Prepared By: Richard L. Wynia, USDA-NRCS Plant Materials Center, Manhattan, KS. Citation Wynia, R.L. 2010. Plant fact sheet for Kansas hawthorn (Crataegus coccinioides). USDA-Natural Resources Conservation Service, Manhattan Plant Materials Center, Manhattan, KS 66502 Published : October 2009 Edited: [e.g., 08Sep2009 rg, 08Sep2009 jfh; 17Sep2009 jfe] For more information about this and other plants, please contact your local NRCS field office or Conservation District <>, and visit the PLANTS Web site <> or the Plant Materials Program Web site <> USDA IS AN EQUAL OPPORTUNITY PROVIDER AND EMPLOYER
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