This site is quite useful in helping determine growing degree days and phenology in your area to aid you in your decisions of when to spray and much more.
CFAES COVID-19 Resources: Safe and Healthy Buckeyes | COVID-19 Hub | CFAES Calendar
Buckeye Appellation
https://ohiograpeweb.cfaes.ohio-state.edu
https://ohiograpeweb.cfaes.ohio-state.edu
College of Food, Agricultural, and Environmental Sciences