biofilm


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After years of using biodegradable biobased mulch films (or biofilms for brevity), in early 2015 certified organic farmers in Canada were told that biofilms would no longer be considered an allowable input. Farmers from across the country were understandably upset and confused. Biofilms offer benefits in weed control and soil warming.  And they biodegrade within 2 seasons, eliminating the need to be picked up. Every ecologically-minded farmer who was using or wanted the benefits of regular plastic mulch, was happy to avoid adding more waste to the landfill. When I first learned about non-GMO, corn starch-based biofilms, I was excited […]

Biodegradable Plastic Mulches No Longer Allowed in Canadian ...


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I wrote this article for ACORN’s summer 2015 newsletter and am now republishing it here. At the end of March of this year (2015), we found a memo in our inbox from Ecocert (the organic certifying body that we are certified with). In this memo, we were told that we would no longer be able to use the biodegradable plastic mulch (made with non-GMO corn starch) that we had been using unless we removed it after use. We were surprised and concerned. It was definitely a little last-minute! We still had leftover rolls of it at the farm from last […]

The Case of the Unapproved Biodegradable Plastic Mulch