2002 Volume 37 Issue 3 Pages 373-377
The trapping efficacy of a commercially available funnel-vane trap (FV trap) was compared with those of a funnel trap (F trap), a water pan trap (W trap) and a water pan trap with a vane (WV trap), baited with synthetic sex pheromone of sugarcane wireworms, Melanotus sakishimensis Ohira or M. okinawensis Ohira (Coleoptera: Elateridae) on Miyako and Okinawa Islands, respectively, in 2000. On Miyako Island, on calm days, FV and WV traps captured significantly more M. sakishimensis males than F and W traps. On windy days, FV and WV traps captured more males than F and W traps, but the differences were not significant. At Itoman on Okinawa Island, on windy days, FV and WV traps captured significantly more M. okinawensis males than F traps. On calm days, FV and WV traps captured more males than F and W traps, but the differences were not significant. In FV traps, the influence of trap height on capture was investigated in sugarcane fields on Miyako and Okinawa Islands in 2000. Traps at ground level (2 cm) and 30 cm captured more males than traps at 90 cm and 150 cm above the ground.
