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SUMMER INDUCED CHLOROSIS

August 3, 2009

It's that time of year again when summer induced chlorosis begins to show up on lawns, golf courses, and sports fields. I have already had a few calls on this problem. Summer induced chlorosis is a yellowing of the turf that occurs as temperatures rise in midsummer. We normally see it in late July and into August. This year has been a little cooler than normal, but the few warm days that we have had are triggering the problem in some areas.

David DeVetter, a graduate student at ISU, completed a masters project on this in 2007. Here is the link to the article.

Nick Christians

http://www.hort.iastate.edu/turfgrass/pubs/turfrpt/2008/PDFfiles/GCMdealingsummer.pdf

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