20 MISC. PUBLICATION 4 6, U. S. DEPT. OF AGRICULTURE 



Harris 1938 (104): "Observed to be tolerant," supporting a moderate 

 infestation without showing ill effects. Tanganyika. 



Hume 1901 (113): Infestation does not interfere seriously with the crop. 

 Florida. 



Taubenhaus and Ezekiel 1933 (226) : Losses rarely serious. Texas. 



United States Bureau of Plant Industry 1920: 2i Common in South Caro- 

 lina, loss estimated at 1 percent. 



Watson 1929 (255) : Turnips usually "immune" or only slightly infested. 

 Florida. 



Brassica spp. (N, S) 



Frank 1885 (68): Infestation conspicuously absent from Cruciferae; other 

 hosts preferred (one planting). Germany. [In 1896 Frank (69) listed 

 "Brassica spp." as host plants.] 

 Neal 1889 (176): The genus Brassica "badly affected." 



Several species of Brassica are commonly known as mustard; reports of infesta- 

 tion on "mustard," which should be given to balance the above reports of resist- 

 ance, have been omitted because species were not recorded. 



Broccoli, see Brassica. 



Bromus catharticus (B. schraderi), rescue grass. 



Besset 1911 (16): No infestation found. 

 Broomcorn millet, see Panicum. 

 Broomsedge, see Andropogon. 

 Brussels sprouts, see Brassica. 

 Buckwheat, see Fagopyrum. 

 Buff el, see Panicum and Pennisetum. 

 Bur-clover, see Medicago. 

 Bushclover, see Lespedeza. 

 Butternut, see Juglans. 

 Cactus, see Cereus and Opuntia. 

 Cajanus indicus, pigeonpea, red gram. (C) 



Beeley 1939 (14): Found attacked, but somewhat resistant. Malaya (?). 



Bessey 1911 (16): Nematodes abundant, injury apparently not great. 



Collins 1938 (41): Attacked (1 season). Rhodesia. 



Godfrey 1928 (93) : In general a very high degree of resistance, plants some- 

 times badly hit; Var. New Era showed striking resistance. Hawaii. 



Krishna Ayyar 1933 (131, 132): No infestation found in pot experiment 

 nor in infested plot, and soil population reduced. India (Madras). 



Mackie, W. W. (California station; in letter, 1939): Susceptible forms may 

 be killed. Recent work [of Mackie] has produced many highly resistant 

 strains, both by plant selection and from hj'brid origin. 



Sandground 1922 (207) : Parasitized more or less severely in South Africa. 



Calendula sp., calendula, pot-marigold. (N, S) 



Melchers 1915(159): Vars. "Eldorado" and "Vaughan's Mammoth Mixture" 

 apparently "unaffected." Kansas (in greenhouse). [This statement, 

 unquestioned, was quoted by Tyler (236). It is the only report of 

 resistance in calendula; other authors report heavy infestations. The 

 resistant plants in the experiment are now assumed to have been true 

 African marigold, Tagetes erecta. No "Eldorado" calendula has been 

 found in any seed catalog, old or recent. In Vaughan's catalogs 

 from 1910 through 1915 the variety name Eldorado was applied only to 

 marigold and to Oenothera; there was a "Vaughan's Special Mixture" of 

 marigolds, and "All Colors Mixed" of calendulas.] 



California-poppy, see Eschscholtzia. 



Calla, see Zantedeschia. 



Calliopsis, see Coreopsis. 



" 24 Haskell, P. J., and Wood, Jessie, diseases of field and vegetable crops in the united states 

 in 1919. U. S. Bur. Plant Indus., Plant Dis. Bui. Sup. 10. pp. 180-273. 1920. [Mimeographed.] See p. 242. 



