Moulds and films
Damping-off / root rot water mould
Pythium spp.
A water mould in soggy soil that rots roots and seedlings.
Care
- Air humidity
- 90 to 100%
- Temperature
- 10 to 30 °C
Description
Technically a water mould rather than a true fungus, it swims through waterlogged soil. You rarely see fuzz, just seedlings toppling in patches and brown, mushy roots. A drainage layer, lighter watering and sterilised soil are the best defence.
Also called damping off, root rot, water mould.
Estimated, where sources were thin: spread_cm_per_day in soil (2-4 day figure is hydroponic); temp_c; humidity_rh_pct.