An Analysis of Factors Affecting Population Genetic Structure of Oligonychus ununguis Based on the Mitochondrial COI Gene Sequences Morphological Differences of <i>Oligonychus ununguis</i> Populations from <i>Castanea mollissima </i> and <i>Cunninghamia lanceolata</i> STUDIES ON THE INTERRELATIONSHIP AMONG OLIGONYCHUS UNUNGUIS, HOST PLANTS AND AMBLYSEIUS FINLANDICUS Ⅲ.RELATIONSHIP BETWEEN CHEMICAL COMPONENT OF HOST PLANTS AND DEVELOPMENT OF OLIGONYCHUS UNUNGUIS STUDIES ON THE INTERRELATIONSHIP AMONG DLYGONYCHUS UNUNGUIS HOST PLANTS AND AMBLYSEIUS FINLANDICUS Ⅱ.The effects of volatile on the correlation of host platns- Oligonychus ununguis-Amblyseius finlandicus STUDIES ON THE INTERRELATIONSHIP AMONG OLIGONYCHUS UNUNGUIS HOST PLANTS AND AMBLYSEIUS FINLANDICUS Ⅰ The olfactory responses of Oligonychus ununguis to host plants and Amblyseius finlandicus to preys A New Variety of Castanea mollissima ‘Mingfeng 2‘