Spodoptera frugiperda 1: Factors Affecting Pheromone Trap Catches in Corn and Peanuts2

When the surface area of sticky traps or cylindrical electric grid traps was increased, the number of male fall armyworm moths, Spodoptera frugiperda (J.E. Smith), captured showed a proportional increase. Wind direction affected the area on the surface of sticky traps where moths landed; significantly more moths were captured on the side of the trap downwind from the pheromone source. The location of pheromone-baited sticky traps placed in or along the edge of corn fields made no difference in captures of S. frugiperda moths when plant height ≤ trap height. In peanut fields, traps 1.2 m above ground level captured significantly more moths than those at heights of 0.7 and 0.5 m; also traps 25 m inside the fields captured significantly more S. frugiperda males than traps at field-edge or 50 m into fields.