Investigation on the characteristics of biology and ecology of Populus euphratica and Populus pruinosa Research Progress of Quarantine Pest Carpomya vesuviana A Study on Ecological Characteristics of Suillus luteus(L.:Fr)Gray Pest Risk Assessment of Carpomya veusuviana in China STUDIES ON OCCURRENCE AND METHODS OF CONTROL OF DIORYCTRIA RUBELLA HAMPSON STUDIES ON THE BIOECOLOGY OF EUPTEROTE SAPIVORA YANG STUDIES ON THE BIOECOLOGY OF MEGASTIGMUS SABINAE A Preliminary Study on the Bioecology of Tara