Several Indian figures act as boundaries, and crossing one points at a domain. Compost above 72 percent moisture cannot aerate properly, turns airless and invites brown and white plaster moulds. NHB links compost below 64 percent, under wet casing, to weeper mushrooms.
Outside pH 7.2 to 7.8 the mycelium slows and white plaster mould may invade. Above 60 °C at pasteurisation DMR warns that the useful thermophilic fungi die and olive green mould follows. Ink caps and Oedocephalum point back at ammonia and nitrogen. The symptom does not prove the cause, but it tells you which measurement to take next.