Chemical constituents in stems of Eurycorymbus cavaleriei Determination of methyl salicylate in Huoluo Tincture by HPLC DC-EPG analysis on effect of tea plant induced by methyl salicylate against feeding of tea green leafhopper Ecological effects of wheat-oilseed rape intercropping combined with methyl salicylate release on Sitobion avenae and its main natural enemies. Studies on Chemical Constituentε of Anticancer Plant Nyssa sinensis Oliv Chemical constituents in stems of Eurycorymbus cavaleriei