Ecological issues of research for biological invasion of Ampullaria gigas Spix in China New strategies ofplant gene-engineering for integrated weed management An overview and prospects for grassland adaptive management in China Integrated Management of Holcocerus hippophaecolus (Lepidoptera:Cossidae) The integrated coastal zone management (ICZM) and its progress STUDY ON VARIETY RESISTANCE OF TOBACCO DEVELOPING PERIOD TO BROWN SPOT AND THEINTEGRATED MANAGEMENT TECHNIQUES Integrated management technology on main diseases and insect pests of Ginkgo biloba STUDIES ON OCCURRING REGULARITY AND INTEGRATED MANAGEMENT OF KUWANASPIS HOWARDI COOLEY Sustainable management on pests by agro-biodiversity A STUDY ON PSEUDOPHACOPTERON CANARIUM IN FUJIAN PROVINCE STUDY ON THE INTEGRATED MANAGEMENT OF CITRUS CANKER A PRELIMINARY STUDY ON THE INFESTATION AND ECOLOGY OF ACULUS BAMBUSAE KUANG (ACARI:ERIOPHYIDEA) IN MOSO FOREST STUDIES ON THE INTEGRATED MANAGEMENT TECHNIQUES OF SMALLER GREEN LEAFHOPPER IN TEA PLANTATION OF SOUTH YUNNAN THE STUDY OF A SPECIOUS INVASIVE PLANT, WATER HYACINTH (EICHHORNIA CRASSIPES): ACHIEVEMENTS AND CHALLENGES Studies on Protection of Common Peony from Scarah Damages