It's a good day to be a downy mildew spore with high humidity and overcast skies. In the last 24 hrs, 5 new MI counties have confirmed positives in their cucumber fields. Crop protection is needed: https: veggies.msu.edu/ for more info.
Three new MI counties verified with cucumber downy mildew today for a total of 8. Wet weather, cooler temps, and overcast skies could mean more outbreaks. Expect an uptick in disease in the next several days.
Lots of dew tonight means great conditions for foliar plant pathogens. Cucumber downy mildew is confirmed in more Michigan counties.