263 



The following insecticides applied by ground machine were equally effective in 

 controlling boll weevil and bollworras on cotton in N. E. La. during 1967, 68, 

 and 69: Methyl parathion at 0.75 lb Al/a, methyl parathion (0.75) and DDT 

 (1.0), toxaphene (2.0) + methyl parathion (0.75), toxaphene (2.0) + DDT (1.0), 

 toxaphene (2.0) + DDT (1.0) + methyl parathion (0.75). 



501. , and Cross, W. H. 1971. A new trap for capturing boll weevils. 

 Coop. Econ. Insect Rep. 21: 773-774. 



The trap is constructed from a floral liner (papier-mache material) 11.5 in. 

 high. The inverted floral liner is painted first with a white undercoat, then 

 with daylight fluorescent Saturn Yellow (Day-Glo® 2^/ Color Corporation), and 

 finally with a clear acrylic lacquer for waterproofing and to prevent fading 

 of the Saturn Yellow. The floral liner is capped with a screen cone held just 

 off the liner with glass beads or other spacers with a small hole in the apex 

 of the cone which opens into a 2- in. plastic box (or similar device) (Fig. 2). 

 A grandlure wick is pinned to the top of the floral liner inside the screened 

 cone. The complete trap is mounted on a stake 3 to 4 ft. above the ground. 

 Weevils may be captured and kept alive or they may be killed with a small 

 cube of Vapona® No-Pest strip placed in the box. 



502. , and Cross. W. H. 1976. Response of boll weevils and other insects 

 to grandlure exposed in two basic types of traps. J. Econ. Entomol. 

 69: 6-8. 



When compared to the Whittam trap, the Leggett trap was highly selective for 

 capturing Anthonomus grandis Boheman and accounted for 58% of the total in- 

 sects captured when baited with grandlure. No other insects responded to 

 grandlure. Traps painted Saturn Yellow were attractive to several other 

 groups of insects. 



