Its that time of the year to be thinking about Eastern Filbert Blight Sprays. Commonly sprays have started early to mid March and are recommended to continue on every 2 weeks until early May. I found a helpful EFB page by Jay W. Pscheidt who is an extension plant pathologist at OSU. The link is below.
If you click through this it has a lot of information that is quite helpful if you have questions or concerns for EFB in your orchard.
If you have further questions on this topic or related topics be sure to talk with your CPS field man.