I have an organic raised garden bed for tomatoes. Unfortunately a soil pathogen/fungi has damaged several of my plants this year. I could not find an environmentally safe way to treat soil pathogens other than resting the soil for a few years. Since I am in limited space, I thought that perhaps I could place 25 gallon grow bags on top of the raised garden bed. My concern is that the soil pathogens will seep into the bag's soil and I will have the same problem. Can anyone advise me on this, if I should place a plastic between the grow bag and the raised garden bed's soil, or am I overthinking this problem?
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I would rather bag the suspect soil and/or pile it somewhere with lots of sun. The heat should accelerate sterilization effort. If bagged and space is really limited perhaps hanging the bags high could be an option.– VoracSep 2, 2021 at 8:23
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