Behavioral responses of Chrysopa septempunctata to synomones of tea plants and sex pheromones of aphids: Effectiveness on tea aphid control Preliminary research on habitat selection of Chrysopa septempunctata in farmland in central Hebei Province Attraction effect of main volatile components from tea shoots and flowers on Sphaerophoria menthastri(Diptera:Syrphidae) and Chrysopa septempunctata(Neuroptera:Chrysopidae) Effects of bionic glue on experimental population dynamics of Paratrioza sinica and its natural enemies Effect of mutual interference and spatial heterogeneity on predation of adult Chrysopa septempunctata