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High Tunnel Gets Colder Than Outside
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November 20, 2017
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4season
Tomatovillian™
Join Date: Aug 2014
Location: albuquerque
Posts: 308
I think pyrethrin or the synthetic analog permethrin will kill aphids. If I remember correctly some military clothes for jungle use are lightly infused with pyrethrin, low toxicity to mammals but bad for aquatic life.
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