insect pests 第1页

A study on system optimum control to diseases and insect pests of rice in Shandong STUDIES ON PREDICTION OF INSECT PESTS AND THEIR NATURAL ENEMIES ON ARTIFICIAL NURSERY OF PINUS MASSONIANA Evaluation of azadirachtin against striped flea beetle,Phyllotreta striolata(F.) STUDY ON TECHNOLOGY OF MIXTURE OF INSECTICIDES AND FUNGICIDES TO CONTROL MAIN DISEASES AND INSECT PESTS OF WINTER WHEAT AT THREE PERIODS Effects of O_3 on disease and pest control of cucumber in greenhouse EXPERT SYSTEM FOR SAFE APPLICATION OF INSECTICIDES TO CONTROL INSECT PESTS IN RICE FIELD STUDIES ON THE STRUCTURE OF THE INSECT COMMUNITY AND THE EFFECT OF INTEGRATED PEST MANAGEMENT Changes of eco-environment of farmland and development of some crops diseases and insect pests A study on growth of artificial mangrove forest and plant diseases and insect pests Prediction model of agricultural plant diseases and insect pests based on artificial neural network and its verification The possible influence of future climate change on cotton production,and disease and insect pests in Hebei Province Primary investigation on the ecological technologies of prevention and cure on diseases and insect pests in protected vegetable production A COMPARATIVE STUDY ON THE KERNAL TECHNIQUES FOR PESTICIDEINJECTION SYRINGE AND DESIGN OF ITS 6HZ.D625B TYPE UTILIZATION OF ENTOMOGENOUS NEMATODES FOR CONTROL OF FOREST INSECT PESTS STUDIES ON THE INJURY EQUIVALENCY SYSTEM AND MIXED ACTION THRESHOLD OF MAIN SOYBEAN LEAF-FEEDING INSECT PESTS The occurrence and damages of insect pests on sweet corn in Guangdong Province Ecological effects of six diseases and insects on larch crown Prevention and Curing Technique of Phloem InsectPests in Q ilianMountains Nature Reserve