Research progress on the chemical ecology of predatory mites Language of plants: Where is the word? Research progress on the chemical ecology of scale insects Semiochemicals used by natural enemies as host seeking signal Researches on the Release Rates of Four Types of Insect Semiochemicals from Four Dispenser Types Potential for using semiochemicals to manage whiteflies (Hemiptera: Aleyrodidae) in agricultural fields Study on Applying Semiochemicals of Bark Beetle in Timber Quarantine