.. .-'.. ■■. • . . A66 



918. . 1975. Curbing boll weevil egg hatch. Agric. Res. 2'!t(5): 7. 

 Eradicating the boll weevil may be made easier with a new growth inhabiting 

 urea-type chemical compounds, TH 6040, used in sprayable oil or other formu- 

 lations that aid absorption by contact or feeding. In studies in ARS 

 laboratories at Mississippi State, MS and Florence, SC, TH 6040 shows 

 promise by acting as a female weevil sterilant in both laboratory and 

 preliminary field tests. Actually, It is not a sterilant but inhibits 

 insect development. It does not cause mutation, has very low mammalian 

 toxicity, does not appear to accumulate in the food chain and prevents liatch 

 of boll weevil eggs. 



919. . 1975. Super-male boll weevils. Agric. Res. 24(4): 11. 



If a male weevil is not naturally a "super" pheroraone producer he can be made 

 that way. Ret;earchers added grandlure-impregnated paint to the insects' 

 elytra, the protective wing covers which shield the functional wings. Small 

 dots of "butyrate dope" containing grandlure placed on the weevils signifi- 

 cantly increased the attractiveness of sterile males to females. 



920. U.S. Department of Agriculture. 1969. The boll weevil . . . how to con- 

 trol it. U.S. Dep. Agric. Farmers Bull. 2147, 11 pp. 



This is a revision of the Bulletin that was issued in 1962. The insecticides, 

 formulations and rates to be used are given on one table. Azodrin, EPN, and 

 Heth>l Trithion have been added to the table. The following cautionary state- 

 ment was added: "The registrations for use of azodrin, endrin, methyl parathion 

 and Methyl Tritliion on cotton were at the time of publication subject to can- 

 cellation on January 1, 1970. Do not use any of these insecticides on coittsn 

 after January 1, 1970, witliout first determining whether the registration remains 

 effective. Check with your County Agricultural Agent or with your State 

 Agricultural Experiment StatlcTn." 



