Occurrence Regularity，Suitable Meteorological Indexes，and Prevention and Control Technology of Main Pests in Rizhao Tea Area

In order to prevent and control pests of tea trees scientifically, occurrence and development regularity of four main pests affecting Rizhao tea area was analyzed, including little green leafhopper, green bug, aleurocanthus spiniferus and mites． Meteorological indexes suitable for occurrence of four main pests in each development period were introduced． Experiment on pest control was carried． Results showed that non residue ecological control was main model of pest control in tea plantations at present and in the future． Meteorological indexes of main insect pests of Rizhao tea trees could be used as reference for guiding control of insect pests in tea gardens in northern China．