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Powdery Mildew, will it ruin my soil?
+2
rowena___.
imtethered
6 posters
Page 1 of 1
Powdery Mildew, will it ruin my soil?
I've had a terrible case of Powdery Mildew that I was unable to get under control and it eventually killed most of my garden. My question is will the spores live in my garden soil and compost over winter? Is there anything I can do to save the soil and compost? Is there anything that will kill the spores?
imtethered- Posts : 11
Join date : 2012-06-01
Age : 60
Location : Littleton NH in the White Mountains
Re: Powdery Mildew, will it ruin my soil?
powdery mildew is everywhere. however, it won't spread unless conditions for it are right for incubation, which means cool, moist/humid, and little air circulation. PM won't generally kill a plant, but it can cause cosmetic damage that many people find unacceptable. in my opinion, the most effective approach is to practice good housekeeping--keep debris picked up, rake the surface of the soil to help air it out and expose more of it to direct sunlight.
Re: Powdery Mildew, will it ruin my soil?
I agree with Rowena. BUT, this year seems to have given us the perfect storm of conditions for powdery mildew. I'm so sick of spraying baking soda mixes and even copper sprays for it, that I've adopted the wisdom: "If she die, she die." Too many squash for winter storage as it is; what doesn't finish maturing is compost. Nonna
Nonna.PapaVino- Posts : 1437
Join date : 2011-02-07
Location : In hills west of St. Helens, OR
Re: Powdery Mildew, will it ruin my soil?
Agreed, Nonna. I got sick of spraying for PM, too, and decided to let them go by if that's how it went. Even tho my area is very windy so there's lots of air circulation, the Cape notorious for humid summers. I think I read somewhere that the winter here will kill the PM off a bit. *shrug*
CC
CC
CapeCoddess- Posts : 6824
Join date : 2012-05-20
Age : 68
Location : elbow of the Cape, MA, Zone 6b/7a
Re: Powdery Mildew, will it ruin my soil?
All of my snow peas came down with powdery mildew(PM) this spring, simply because it was warmer and more humid than usual. The next crop(tomatoes and peanuts) did not suffer from PM, though I did clean up the surface of the soil before replanting.
Unmutual
Certified SFG Instructor- Posts : 396
Join date : 2011-04-23
Age : 52
Location : Greater New Orleans Area Westbank(Zone 9b)
Re: Powdery Mildew, will it ruin my soil?
How did you clean up the surface?
cpl100- Posts : 420
Join date : 2012-06-25
Location : MA Zone 6a
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