From ISU- https://www.extension.iastate.edu/article/new-emerald-ash-borer-resources-available-isu-extension-and-outreach-forestry-program 

Publications provide list of arborists, tree varieties

4H in Mills County is all about fun, friends, voice and choice.  We want you to have a great experience!  Try out different clubs and find the one that fits your schedule and makes you feel great!  Fun is something we all like to have!  4H activities, events, workshops and more make fun happen!   riends- join a club to be with them, or join a club to make new ones!  Your voice matters- in 4H we want to hear what you like to do and what you want to try- share what we can do to make your experience the best!  Choice is a HUGE one- so many options of things you can do and try.  4H lets you reach for the stars and see what really makes you tick.  You may suprise yourself!  Grow and share in a safe and warm place!  4H is all you want it to be!