Lawn Care/Maintenance/Lawn Disease
(Alabama) Home Lawn Disease Control Guide
http://www.aces.edu/department/ipm/lawnguide.htm
includes diagnostic matrix(Delaware) Lawn Diseases: Identification and Management
http://ag.udel.edu/extension/information/pp/pp 06.htm(Illinois) Managing Home Lawn Diseases
http://www.urbanext.uiuc.edu/lawnchallenge/lesson8.html(Illinois) Rust Diseases On Home Lawns
http://www.urbanext.uiuc.edu/hortihints/0208b.html(Illinois) Patch Disease in Lawns
http://www.urbanext.uiuc.edu/stateline/980709.html(Kansas, Texas) Homeowner Packaged Plant Disease Control Chemicals
http://www.oznet.ksu.edu/path ext/Alerts/2002%20alerts/Chemical.pdf(Kentucky) Chemical Control of Turfgrass Diseases
http://www.ca.uky.edu/agc/pubs/ppa/ppa1/ppa1.htm(Michigan)Powdery Mildew of Lawns
http://www3.extension.umn.edu/info u/plants/BG543.html
Chemical control is not generally necessary(Minnesota) Free Mail-In Lawn Disease Diagnosis
http://www.extension.umn.edu/extensionnews/2002/LawnDiseaseDiagnosisAvailable.html(Montana) Snow Mold
http://scarab.msu.montana.edu/extension/disea026.htm(Washington) Disease Management in Home Lawns
http://cru.cahe.wsu.edu/CEPublications/eb0938/eb0938.html(Washington) Lawn Diseases On Home Landscapes in Western Washington
http://www.cityofseattle.net/util/proipm/docs/Lawn%20disease.pdf
This section addresses major diseases of turfgrasses in residential lawns. Each disease is discussed in terms of its identifying features, conditions that favor outbreaks and management recommendations.
Turfgrass diseases are diagnosed by identifying symptoms and signs of infection. Symptoms represent the plant’s response to infection and colonization by a fungal pathogen. These include leaf spots, chlorosis (yellowing), necrosis (browning), blighting (leaf collapse and decay), stunting, and wilting. Signs are the visible parts of the pathogen -- white cottony mold and powdery spores are most common signs of disease.
Lawn diseases can be managed using disease-resistant turf varieties, cultural options, or fungicides. These options are discussed where appropriate for the lawn diseases addressed below. Fungicides are generally not recommended for use on residential lawns. In the rare cases where fungicides are actually necessary, they should be applied by lawn care professionals, who have the technical expertise and experience to apply the product correctly.