How fast do VA mycorrhizal fungi come back into soils that have been fumigated?
It could take a long time for fumigated soils to become recolonized with VA mycorrhizal fungi. Their spores are large and are not readily blown around in the air. However, they can be moved around in dust or soil movement, in water that carries soil, or can follow roots up into fumigated soil from below the fumigation level.
