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:
(They are hoping to revise for 2017).
We have a revised version of Tree and Shrub Problems in Kansas. You can download the pdf here:
Or, call 785-532-5830 to order a copy. The 2014 version is still accurate, but in the 2016 version we have tweaked and updated some things to make the book more user-friendly based on feedback and our experiences using the books in hands-on workshops. We replaced a few photos with better ones, and we added some new ones.