3A9 



busulfan are dipped in 0.1% TH-6040 in acetone. The combined treatment should 

 be valuable for sterilization of boll weevils in control programs which utilize 

 sterile males. 



687. ; Taft, H. M. ; and Payne, L. B. 1970. Dimethyl sulfoxide as a possible 

 synergist for selected insecticides against the boll weevil. J. Econ. 

 Entomol. 63: 1342-1343. 



The possibility that dimethyl sulfoxide (DMSO) would be synergist with some 

 insecticides was tested. It was found that DMSO alone was more toxic than 

 DDT alone and that it did not increase the effectiveness of azinphosmethyl, 

 carbaryl, or toxaphene. 



688. ; Whisnant, F. F.; and Taft, H. M. 1967. A laboratory diet containing 

 egg albumin for larval and adult boll weevils. J. Econ. Entomol. 60: ' 

 237-241. 



A laboratory diet for larval and adult boll weevils, Anthonomus grandis Boheman, 

 was developed by substituting 3 g of egg albumin for the casein or soybean pro- 

 tein and 0.5 g/100 g diet of cotton leaf powder for the acetone cotton square 

 powder or germinated cottonseed used in other diet. One % of a cottonseed: linseed 

 oil mixture (1:1) was used in the adult diet and 0.5% in the larval diet. All 

 components except the leaf powder are commercially available. A method of 

 shaping and handling oviposition forms in large numbers is described. Two types 

 of commercial spray egg albumin were evaluated as inducements to oviposition and 

 as support for larval growth. Potassium sorbate and methyl parasept were used 

 as inhibitors in the adult and larval diets. In excessive amounts, they reduced 

 egg hatch and larval growth. The levels that prevented contamination but were 

 not detrimental to propagation of the colony were determined. 



