It’s been awhile since we’ve plugged this book, so I’ll do it again:

It’s a terrific resource for any turfgrass manager.  You can find more details about the contents and purchase it at this website:

http://www.apsnet.org/apsstore/shopapspress/Pages/43924.aspx

Summer patch

Summer patch symptoms tend to show up when heat and drought fire up in late June/July/Aug, but the infection occurs in mid/late spring.  The fungus is soilborne and attacks roots.    When the daily max soil temperatures at 2-3 inches deep are consistently (3 days in a row) above 65, that’s a good time to make a first application.  Follow up 28 days later, or according to label intervals. Normally, around here, that temperature threshold comes in late April/early May but this year things are warming up faster than normal.  Check the soil temps at your site – you may be surprised!