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TRUFFLES — recognising invertebrate pest damage at harvest and grading Australian truffle beetle, ATB (Thalycrodes sp. Family Nidulidae) Adults - honey brown; clubbed antennae; rows of hairs on its back; approximately 2-3mm long and 1.5mm wide. Larvae - brown head; pointed both ends; ny legs on the thorax; body segmented ATB adults, scale in mm ATB adult White ATB larva Cream coloured ATB larva Weevil larvae produce holes up to approx. 5mm in truffles ATB larvae and adults make holes approximately 1mm in diameter externally and internally. Tunnelling may be extensive. Adults and larvae may be present in truffles aſter harvest and washing. African black beetle adults produce approx. 10mm holes in truffles Millipedes can produce uneven holes or browse the peridium Slugs and slaters produce deep and uneven cavies Black earwigs produce uneven holes Other invertebrates and signs of their feeding Springtails occur in cracks and in rong or spongy truffles and may produce tunnels under the peridium Pot worms are common in truffles with some rot Fungus gnats are fly larvae with black heads. They may tunnel in spongy or roen truffles Other fly larvae or maggots may infest roen truffles Beetle (top) found in damaged truffles only. Different to ATB (below) - has no clubbed antennae and no rows of hairs on back For further informaon contact the WA Department of Primary Industries and Regional Development, or visit www.DPIRD.wa.gov.au
