Field studies of Pectinophora gossypiella with traps containing lamps radiating in the UV and visible spectra were continued in 1954 at Brownsville, Texas. In studying the value of suction fans, 76% of the moths were caught in traps equipped with fans. More pink bollworm moths were taken in traps equipped with black-light lamps. One electro-cuter-grid trap did not prevent a build-up of infestation in a 1/20 acre plot. The moths responded to black-light lamps in greatest numbers between 2 and 4 A.M. The height of traps above the ground affected collections, 39% being caught at the 2-foot height and 71% below 6 feet. In tests to determine the response of moths to wind direction, 86% of those trapped flew into the wind. In traps placed at various locations in the lower Rio Grande Valley it was found that the number of moths taken in the traps was correlated with the infestation in the field and crop maturity.