P&PDL Picture of the Week for
September 18, 2006

Do the Dead Spots in the Lawn come with the House?

Glenn Hardebeck, Turfgrass Research Agronomist, Department of Agronomy, Purdue University

The owner of this home was likely trying to improve the “curb appeal” by spot spraying the broadleaf weeds in the lawn.  Unfortunately for this sale, broadleaf herbicides and broad spectrum vegetation control herbicides are not the same thing.  Although I’ve seen many examples of herbicide injury to lawns, it is still a little startling at first glance.  Most cases of injury are due to misapplication such as using extremely high rates or poor uniformity during application.  In the past few years since Roundup came off patent, many “new” herbicides containing glyphosate have entered the market.  This trade name confusion has led to a surprising number of lawns similar to this one.  A lawn like this gives a good example of why it is important to read the label before application.

Click image to enlarge

Herbicide injury on lawn

Purdue Plant & Pest Diagnostic Lab Purdue Cooperative Extension Service