168 



throughout a large area before the traps can prevent buildup of populations 

 to damaging levels or accomplish eradication. 



322. ; Cross, W. H.; and Mitchell, E. B. 1969. Male boll weevils are 

 more attractive than cotton plants to boll weevils. J. Econ. Entomol. 

 62: 165-169. 



The definite preference of overwintered and late-season Anthonomus grandis 

 Boheman for male weevils compared with that for fruiting cotton suggests 

 that the pest may be less attracted to weevil-free cotton than to cotton 

 containing male weevils that have found the plant by random. flight or be- 

 cause of a short-range response to a plant attractant. Traps baited with 

 live male weevils or with a synthetic male pheromone may thus prove a 

 possible new method of control and/or eradication of boll weevils and a 

 valuable method of making surveys to detect small, incipient populations 

 of boll weevils formerly not easily surveyed. 



323. ; Cross, W. H.; Mitchell, E. B.; Huddleston, P. M.; and Mitchell, 

 H. C. 1972. Capture of boll weevils in traps baited with males: 

 Effect of size, color, location, and height above ground level. 

 Environ. Entomol. 1: 162-166. 



Optimum conditions were determined for capturing Anthonomus grandis Boheman 

 in traps baited with males. Metal wing traps were painted daylight fluore- 

 scent yellow over a white undercoat (about 4 x 6-in. wings x 9-in. base) and 

 were coated with an adhesive. Traps were baited with male boll weevils which 

 were held in a container with a single layer of screen and placed at heights of 

 1-3 ft above ground around a cotton field adjacent to overwintering sites. 

 This system, or a slight modification, would be usefu] in subsequent surveys 

 and for control or possible eradication of the boll weevil with traps. 



