A Review on Applying Chalcid Wasps for Biocontrol of Dryocosmus kuriphilus A New Species of the Genus Aprostocetus Westwood (Hymenoptera:Eulophidea) from China STUDIES ON CONTROL OF GALL FORMATION OF DRYOCOSMUS KURIPHILUS YASMATAO A PRELIMINARY MORPHOLOGICAL STUDY ON IMMATURE STAGE OF NATURAL ENEMIES OF DRYOCOSMUS KURIPHILUS YASUMATSU A PRELIMINARY STUDY ON THE PARASITIC WASPS OF DRYOCOSMUM KURlPHILUS Y. Sequencing and Phylogenetic Analysis of the wsp Gene of Wolbachia in a Gallwasp Species, Dryocosmus kuriphilus (Hymenoptera: Cynipidae) Relationship between occurrence of Dryocosmus kuriphilus and development of cecidum