Mushroom-cultivation
Guides
Coboldia fuscipes
minute black scavenger fly, oyster mushroom fly
Coboldia fuscipes is a minute scatopsid fly, 2–3 mm in length, widely distributed across the Palearctic region. The species is commonly associated with decomposing organic matter and has become a significant pest in oyster mushroom (Pleurotus ostreatus) cultivation, particularly in East Asia. Adults are small, dark-colored flies often found on compost heaps and mushroom substrates. Temperature strongly influences its life cycle, with complete development possible in under 19 days at 28°C.
Mycophila speyeri
Mycophila speyeri is a mushroom-infesting cecid fly in the family Cecidomyiidae, first described by Barnes in 1926. It reproduces primarily through larval paedogenesis, a form of asexual reproduction in which larvae produce daughter larvae directly. Sexual reproduction and adult flies are rarely observed in commercial mushroom growing operations. The species has been documented as a significant pest of cultivated mushrooms in Pennsylvania and has been reported from China and several European countries including Denmark, Norway, Sweden, and Japan.