Harm and Control of Caloglyphus shanghaiensis in Edible Fungi

Caloglyphus shanghaiensis (CaloglyphusShanghaiensis) belongs to the family Acaridae, genus Caloglyphus. Within the genus Caloglyphus, other species related to edible fungus production include Caloglyphus kunshanensis, Caloglyphus mirabilis, Caloglyphus mycophagus, Caloglyphus coprophilus, Caloglyphus hughesi, and Caloglyphus oudemansi. Among these, Caloglyphus shanghaiensis and Caloglyphus kunshanensis are the more prominent.

(1) Damage characteristics: Caloglyphus shanghaiensis not only feeds on edible fungus mycelium and fruiting bodies, but also carries and spreads contaminant microorganisms, affecting mycelial growth and reducing the yield and quality of edible fungi. Caloglyphus kunshanensis (Calolglyphuskunshanensis) occurs on mushroom beds in Shanghai, Jiangsu (Kunshan, Jiangyin) and Fujian (Zhangzhou). If not controlled in time, it will have a certain impact on mushroom yield.

(2) Occurrence pattern: Caloglyphus shanghaiensis has strong saprophytic habits and can also survive and reproduce on rotting fruiting bodies. After test-tube spawn is infested, it can eat all the mushroom mycelium; after eating all the mycelium, it can also live on the culture medium. It can also feed on certain contaminant microorganisms and carry and spread them, increasing the possibility of edible fungus disease. It is resistant to high humidity and can suspend its body in a mixture of rotten mushrooms and muddy water and feed from it. When food is scarce or humidity is too low, it produces a reddish-brown, heavily sclerotized, inactive dormant form.

(3) Control methods: ① Cultivate healthy spawn to increase the rate of usable spawn, so that the spawn mycelium is thick and vigorous. ② Pay attention to environmental hygiene; do not pile up debris and waste materials around the mushroom house at will, to avoid contamination by foreign microorganisms and reduce breeding sites for pest mites. Do not build mushroom houses near grain storage warehouses. ③ Strict disinfection: before spawning, thoroughly clean the mushroom house and fumigate and disinfect it with chemical agents; the compost should be treated by heap fermentation or sprayed or mixed with pesticides to kill the pest mites in it.