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Old March 7, 2017   #10
AKmark
Tomatovillian™
 
Join Date: Jun 2013
Location: Wasilla Alaska
Posts: 2,010
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Quote:
Originally Posted by Cole_Robbie View Post
Do you keep your greenhouses heated to above freezing when not in use? I wonder if that makes a difference. I leave the doors open on mine all winter.
I let them freeze, and I do think most pathogens can winter over, even up here. I do know that powdery mildew has to have a host, not sure on the specifics of each disease though. I clean them in the fall, and again in the spring before planting. I also keep employees on daily cleaning schedules, that is going up a notch this year too. I have taken a zero tolerance approach to messy greenhouses.
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