Abstract:Mass trapping for controlling the Chinese tortrix,Cydia trasias(Meyrick),using synthetic sex pheromone traps was evaluated in one road of shade-tree,Chinese scholar-tree,Sophora japonica L.,in Beijing,China, in 1999.The test plots were located in Zhichun Road,Zhongguancun District.The trapping plot was ca.500m×40m.The triangle sticky traps were hung under the Chinese scholar-tree limbs about 3m above ground at 15m intervals.Totally,62 traps were deployed.Each trap was baited with a lure containing 0.25mg o...