The combination of controlling insects and resintapping provides a well way to apply the method for a longer period.
治虫和采松脂相结合，更是为长时期采用这种方法提供了良好的途径。
2
During resintapping, the cover is closed to cover resin liquid to avoid the infiltration of impurities and the volatilization of the resin liquid.
采脂时，将盖封闭盖住脂液，避免了杂质的渗入和脂液的挥发。
3
These were tree age, stand density, resintapping, rainfall, temperature, clay soil, stone soil, soil depth, water logging, and other diseases and insect pests.