In June 2002, pheromone-trapping techniques were used successfully to detect the presence of Chilo sacchariphagus Bojer (Lepidoptera: Crambidae) in sugarcane at Mafambisse and Marromeu sugar estates in Mozambique. Trap design, bait concentration, trap placement and moth flight activity were examined. A simple trap constructed from a 2-litre plastic bottle and baited with two commercial syntheti...