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Mold and Bacterial Contamination of Substrate

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Insects & Arthropods

關於這種疾病

Proliferation of blue-green molds (such as Trichoderma spp.) or contaminating bacteria in beetle substrate, fungal blocks, or fungal-based rearing material. Can degrade the larval growth environment, leading to reduced feeding and delayed development.

主要症狀

  • Blue, green, or black mold has developed on the surface of fungal blocks or substrate
  • Larval feeding marks (frass tunnels) have decreased significantly
  • The substrate or fungal block emits a foul or putrid odor
  • Larvae come to the walls or surface of the fungal block and refuse to burrow back in

主要原因

  • Contaminating fungi (such as Trichoderma spp.) have infiltrated the fungal block or fermented substrate
  • Excessive moisture has created conditions favorable to bacterial and mold proliferation
  • Excessively high temperatures have accelerated fungal degradation and promoted contamination
  • Delayed replacement of fungal blocks has allowed deterioration after larvae exhausted the substrate

預防(飼養環境與日常照護)

Store fungal blocks at an appropriate temperature (approximately 20–23°C) and avoid high heat. Replace fungal blocks promptly when larvae have consumed most of the substrate. Keep fermented substrate at the correct moisture level, refrigerate or seal it after opening, and use it promptly. Always inspect fungal blocks and substrate for signs of contamination before use.

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就醫建議

觀察情況,若惡化請諮詢專賣店

專賣店能做哪些處理?

For mold and contamination issues in substrate or fungal blocks, consulting an insect specialty shop or breeder is the best way to obtain practical advice. Specialists with expertise in fungal block brand selection, replacement timing, and storage temperature management can help ensure healthy larval development.

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