There is a new app for nursery and green professionals called IPMPro. It is currently available for Ipad, Iphone, and Android.
This is what the site says about what it can do, as I still have an old flip phone and haven't looked at it.
Major pest and cultural practices reference at your finger tips!
Automatic text-like alerts for time-sensitive pest issues and cultural practices -alert date adjusted specifically for your location!
Viewable as a calendar or chronological list of action items for easy reference!
Contains images, pest lifecycle, and management options for major pests of woody plants!
Provides pesticide recommendations for major diseases and insects!
Built-in pesticide recordkeeping to make outdoor, and on-the-go recordkeeping easy!
BONUS Weed content!
Here is a webpage that gives more information if you are interested. www.impproapp.com
You can also always call you local Extension Agent! :)