Thanks. That makes sense!  I think I can manage to do frequent testing if I can plan ahead.  Another big expense this year will be taking down 7 very large but dead 45 year old green ash trees (killed by emerald ash bores) at a cost of $1000 a tree.  
--
Karen B.
Wisconsin
2022
Apollo Case History: https://ecir.groups.io/g/CaseHistory/files/Karen%20and%20Apollo
Photo album:  https://ecir.groups.io/g/CaseHistory/album?id=275817