Prospects and Status of the Green Insecticide Chemicals Developed from Turpentine Effects of camptothecin on juvenile hormone and ecdysone titer in diamondback moth Plutella xyllostella Molecular mechanisms of the insect juvenile hormone CHANGES OF JUVENILE HORMONE TITRES OF CHINOLYDA FLAGELLICORNIS TEST FOR THE TOXICITY OF JUVENILE HORMONE ANALOGUE ETP TO SMALLER APPLE LEAFROLLER A Study on the Photoperiodic Diapause of Dendrolimus spp. The dynamic of juvenile hormone in Rhopalosiphum padi