Studies on Hatching Behavior of Chinese White Wax Scale(Ericerus pela)

The egg hatching of Ericerus pela is affected mainly by temperature. Humidity and light have little influence on hatching. Hatching begins at 12 ℃ and takes place between 12 to 35 ℃. The hatching rate is higher from 20 to 25 ℃,which is about 95%. When relative humidity is 40%～80%,the egg hatching rate does not change much. In nature,hatching rate could reach at about 95% at 95% relative humidity. Humidity affects hatching little. Light has the least influence on hatch;egg can hatch at dark condition. Temperature is the key factor for the hatching of E. pela.