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Tuesday, January 17, 2023 Little Ketchup Grittyville, WA

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Pathogens need mobility because they destroy their host. Hence they have to be mobile, in order to find a new host. The good guys in the soil want a stable, long lasting symbiosis because they benefit from their host. Oversaturation is bad because it gives the bad guys (phytophthora) a way to be mobile, rather than inert. Also reduced oxygen slows down the plant root's respiration/growth which is its main defence. That's my two-prong understanding of why very wet soils are bad... Is there a third prong maybe?

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