8 MISCELLANEOUS PUBLICATION 1297, U.S. DEPT. OF AGRICULTURE 



(26) Butler, G. D., Jr., and Muramote, H. 1967. banded-wing whitefly 



ABUNDANCE AND COTTON LEAF PUBESCENCE IN ARIZONA. J . Econ . Ent . 60: 



1176-1177. 

 The relationship between greater abundance of Trialeurodes abutilonea 

 (Haldeman) and leaf pubescence held only for a 'Dwarf A', Gossypium 

 barbadense L., X 'Lankart', G. hirsutum L., genetic combination. 



(27) Evans. D. E. 1965. jassid populations on three hairy varieties of sakel 



cotton. Emp. Cotton Grow. Rev. 42: 211-217. 

 Three hairy varieties of Gossypium barbadense were resistant to Empoasca 

 libyca (de Bergevin and Zanon) but not until late in the season. A white- 

 fly, Bemisia tabaci (Gennadius), was more numerous on the hairy lines. 



(28) Hunter, R. C.. Leigh, T. F. Lincoln, C. and others. 1965. evaluation of 



COTTONS FOR RESISTANCE TO THE BOLL WEEVIL. Ark. AgT . Exp. Sta. Bui . 



700, 38 pp. 

 Significant advances were made in resistance of Gossypium hirsutum to 

 Anthonomus grandis Boheman with red plant color, increased pubescence, 

 rapid fruit set, and Frego bract characters, but supplemental controls were 

 needed for competitive levels of yield. 



(29) Kamel, S. A. 1965. relationship between leaf hairiness and resistance to 



cotton leaf worm. Emp. Cotton Grow. Rev. 42: 41-48. 

 Resistance to Spodoptera littoralis was associated with leaf hair density on 

 both surfaces of Gossypium spp. leaves, especially on the lower surface. 



(30) and Elkassaby, F. Y. 1965. relative resistance of cotton vari- 

 eties IN EGYPT TO SPIDER MITES, LEAFHOPPERS, AND APHIDS. J. EcOn . Ent. 



58: 209-212. 

 The hairy Gossypium barbadense variety 'Bahtim-101' was found to be 

 highly resistant to spider mites, Tetranychus spp., jassids, and the cotton 

 aphid, Aphis gossypii. The literature is contradictory with respect to the re- 

 lationship between hairiness and resistance to cotton aphids. 



(31) Knight, R. L. 1952. the genetics of jassid resistance in cotton. 1. the 



genes h l and h 2 . J. Genet. 51: 47-66. 

 The cicadellid resistance of two perennial types of Gossypium barbadense 

 was caused by a basic, partially dominant, hairiness gene designated H , 

 that was accompanied by several minor hairiness genes . H 2 , a hair density 

 gene, was responsible for the dense tomentum of G. tomentosum Nuttal. 



(32) 1954. the genetics of jassid resistance in cotton, iv. transfer- 

 ence of hairiness from "gossypium herbaceum" to "g. barbadense." 

 J. Genet. 52: 199-207. 

 A major hairiness gene was transferred from Gossypium herbaceum L., 

 (Wagad 8), to Sakel (G. barbadense), and the gene appeared identical with 

 Hj, the usual key gene in hairiness control in New World cottons. 

 (33) 1955. the genetics of jassid resistance in cotton, v. transfer- 

 ence of hairiness from "gossypium arboreum" to "g. barbadense." 

 J. Genet. 53: 150-153. 

 A major hairiness gene was transferred from tetraploid G. arboreum L. 

 (Multani) to Sakel, and the gene appeared allelic to and closely similar to 

 H r . 



