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Old January 22, 2021   #2
Norval
Tomatovillian™
 
Join Date: Dec 2009
Location: Edmonton, AB, Canada
Posts: 19
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Pre-treating potting mix to reduce Damping Off works very well for my tomatoes.
The condition has been reduced to almost zero for many years.
Other growers here on Tomatoville recommend a ratio of:
10 parts water to 1 part hydrogen peroxide (3% USP).

Norval
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