Each year I send this link out to the Kentucky publication “Chemical control of turfgrass diseases.” This is an excellent guide. I contacted one of the authors, and the guide has not been updated for 2016 but the 2015 one is still quite excellent. Here is the link:
http://www2.ca.uky.edu/agc/pubs/ppa/ppa1/ppa1.pdf
(They are hoping to revise for 2017).
