I'm looking for a non-toxic aphid repellant for use on indoor grown tomato plants.
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I use an organic insecticidal soap. It is food grade and I can spray and eat the same day. It should be fine for your houseplants
I am a fan of using just a few drops of regular blue dawn dish soap in a spray bottle with water and washing them away if you get them.
Prevention is the key though!!
When I used to do outside food gardens, I would plant garlic around the tomato plants and never had aphid problems. I am thinking that would work for inside too...I have never tried it, but I can't see why it wouldn't work.
Garlic is a natural aphid repellent. They hate it :)
Post back what you decide.
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