Effects of indoor humidity on egg hatching of the host of Cordyceps sinensis
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Key Words：Cordyceps sinensis, Hepialus gonggaensis, egg, hatching rate
Abstract：Through the study on the effect of indoor humidity to egg hatching of the host of Cordyceps sinensis (Berk.) Sacc., it was observed that the egg hatching was not influenced significantly when exposed to indoor humidity. The hatching rates of firstly, secondly and thirdlylaid eggs in early stage exposed to indoor humidity for 26, 11 and 16 h, respectively, were not significantly different to the control groups, and the larval survival rates were 62.0%, 41.4% and 43.4%, respectively, which were no different to the control groups. When exposure for 36 h occurred in midstage of egg, the hatching rate and larval survival rate were 66.7% and 50.0%, respectively, which were not different to the control. When exposure for 24 h occurred in latestage of egg, the hatching rate and larval survival rate were 70.0% and 49.0%, respectively, which were not different to the control.