boll weevils. The anthers of these two mallows 

 are acceptable for feeding and egg deposition. 



60. Everett, T. R. Inherited behavioral 

 varient in the boll weevil. Jour. Econ. Ent. 

 57: 760-761. 1964. 



A strain of boll weevils that laid more eggs in 

 water-filled paraffin wax shells than in cotton 

 squares was selected from a laboratory cul- 

 ture. The behavior was maintained through 

 four generations. Results from controlled mat- 

 ings further indicated the heritable quality of 

 the characteristic ovipositional behavior. 



61. Everett, T. R., and Earle, N. W. Boll 

 weevil oviposition responses in cotton squares 

 and various other substrates. Jour. Econ. Ent. 

 57: 651-656. 1964. 



Laboratory experiments conducted in 1961- 

 62 at Baton Rouge, La., showed that boll wee- 

 vils preferred cotton squares weighing about 

 319 mg. for oviposition. Neither square size nor 

 whether or not the squares were coated with 

 paraffin influenced puncturing preference. Wee- 

 vils punctured paraffin shells with curved tops 

 more frequently than those with flat tops. 

 Shells about 8 mm. in diameter and 9 mm. high 

 were preferred to larger shells. 



A water-soluble component of cotton anthers 

 stimulated egg deposition. This material, not 

 extractable with acetone, passed through a cel- 

 lophane dialysis membrane. 



62. Everett, T. R., and Ray, J. 0. Utility 

 of sealed punctures for studying fecundity and 

 egg laying by the boll weevil. Jour. Econ. Ent. 

 55: 634-636. 1962. 



As the boll weevil removes its ovipositor 

 from the puncture after egg deposition, a seal 

 is formed over the opening. Counts were made 

 of sealed and open punctures and eggs in cotton 

 fed upon by weevils in the laboratory. A good 

 correlation existed between sealed punctures 

 and eggs. Regression analysis showed that as 

 the number of punctures increased, the number 

 of eggs recovered decreased. Counts of sealed 

 punctures in squares required only about one- 

 third of the time necessary for dissection of 

 eggs from the squares. 



63. Everett, T. R., and Ray, J. 0. Obser- 

 vations of puncturing and oviposition behavior 

 of boll weevils. Jour. Econ. Ent. 57 : 121-123. 

 1964. 



Activities of individual weevils were ob- 

 served. Observations of puncturing, feeding, 

 and oviposition in normal and modified cotton 

 flower buds and artificial substrates showed 

 that eggs were laid in response to numerous 

 sequential stimuli supplied by factors present 

 in cotton squares. A hypothetical pattern of 

 behavior associated with boll weevil oviposition 

 is Dresented 



64. Fye, R. E., and Hopkins, A. R. Boll 

 weevil populations as affected by removal of 

 shed cotton forms. U.S. Dept. Agr. Tech. Bui. 

 1277, 9 pp. 1962. 



Results of a preliminary study conducted in 

 South Carolina to determine the feasibility of 

 developing a vacuum device for collecting shed 

 cotton forms and to find out what percentage 

 of shed forms would have to be removed, and 

 at what intervals, are discussed. The proce- 

 dure in which 18 field cages, carrying an 

 equivalent of 40,000 plants per acre, were ar- 

 ranged in randomized blocks is described and 

 data are presented. It is concluded that for a 

 successful control of the weevil any square 

 removal in the field must be at the rate of 90 

 to 100 percent and the interval of removal must 

 be 5 days or less. Removal must be most efficient 

 in early-fruiting and midfruiting periods. 



65. Fye, R. E., Hopkins, A. R., and Walker, 

 R. L. Field experiments on control of over- 

 wintered boll weevils. Jour. Econ. Ent. 54: 

 622-624. 1961. 



Field experiments at Florence, S. C, (1956- 

 59) strongly indicated the value of an insecti- 

 cidal control program that started just before 

 the formation of the first squares on the cotton 

 plant and was directed primarily at the over- 

 wintered boll weevil. Early insecticide-applica- 

 tion programs conducted before July 1 were 

 nearly as effective as the same programs with 

 additional later sprays when the infestation 

 reached 10 percent. In 1958 the 10 percent level 

 was not reached for 5 weeks and in 1959 for 4 

 weeks after the early program was discon- 

 tinued. There was some tendency for bollworm 

 buildup when the early program was practiced. 



66. Garcia, R. L. Life cycle of the boll wee- 

 vil {Anthonomus grandis, Boh.) [Bogota.] 

 Inst, de Fomento Algodon. Bol de Not. 2(5) : 

 1-2. 1961. [In Spanish.] 



The life cycle is given. 



67. GAST, R. T. Some shortcuts in labora- 

 tory rearing of boll weevils. Jour. Econ. Ent. 

 54:395-396. 1961. 



A rapid method for extracting eggs from 

 cotton squares is given. If sufficient squares are 

 available, several thousand eggs can be ob- 

 tained in 10 minutes. A motor-driven set of 

 rollers capable of removing leaf bracts from 

 several hundred cotton squares in 5 minutes is 

 described. Both shortcuts save time, labor, and 

 money. 



68. GAST, R. T. Mass producing artificial 

 diet pellets for adult boll weevils. Jour. Econ. 

 Ent. 58: 1024-1025. 1965. 



Method and materials are given for produc- 

 ing 11,700 uniform diet pellets from 7,500 ml. 

 of diet in less than 1 hour. Illustrated. 



69. Gast, R. T., and Vardell, H. Mechani- 

 cal devices to expedite boll weevil rearing in 

 the laboratory. U.S. Agr. Res. Serv. ARS 

 33-89, 10 pp. 1963. 



Simple mechanical devices that materially 

 reduce cost of mass rearing are described and 

 illustrations given. 



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