22 MISC. PUBLICATION 40 6, U. S. DEPT. OF AGRICULTURE 



Cassia tora (C. obtusifolia) , ("coffeeweed"), wild senna. (M, N) 



Atkinson 1889 (4)'- Found "affected" in Alabama. 

 Bessey 1911 (16): No infestation found. 

 Georgia Coastal Plain Experiment Station 1936 (83): More resistant 



than the larger species, C. occidentalis. 

 United States Bureau of Plant Industry (unpublished data in files of 



Division of Nematology. 1939) : Light infestation recently submitted 



from Georgia, and also specimens from South Carolina showing mostly 



the young stages, in large numbers. 



Castanea dentata (C. americana) , American chestnut. (C) 



No reports whatever have been found for this species; there is, however, one 

 report of galls found on C. sativa (C. vesca), Spanish chestnut, and one record for 

 C. henryi. 



Castor-bean, see Ricinus. 



Catalpa spp., catalpa. (C, N) 



Steiner 1938: 27 Infested in forest nurseries. [Additional observation: 



Apparently the top growth is little disturbed by heavy infestation.] 

 Watson and Goff 1937 (258) : Catalpa rated as No. 44 in order of suscepti- 

 bility [from okra, No. 1, to corn, No. 46]. Plants "at the bottom of the 

 list are little affected and for all practical purposes can be considered 

 as immune." Florida. 

 Whittle and Drain 1935 (263) : Catalpa listed as badly infested. Tennessee. 



C. bignonioides, common catalpa, native in the Southern States, has not been 

 reported specifically as a host plant. R. F. Poole mentioned at the root knot 

 conference at Nashville in 1937 that infestation prevents the growth of catalpa 

 in a sand-hill area in North Carolina. C. ovata was reported once as a host, from 

 Maryland; C. speciosa, western catalpa, is severely injured according to Bessey 

 (16), but according to Taubenhaus and Ezekiel (226) it is infested occasionally 

 in Texas, with little loss. 



Catjang-pea, see Vigna. 



Cecropia palmata. (C) 



Bessey 1911 (16): Nematodes not abundant and no injury observed. 

 Centaurea cyanus, cornflower. (N, S) 



Barber 1901 (9): Cornflowers very badly attacked. India (Madras). 



Bessey 1911 (16) : Injury severe. 



Goff 1936 (96): Infestation heavy; tolerant unless dry. Florida. 



Watkins 1929 (248) : "Centaurea" seriously injured. Florida. 



Centaurea imperialis, royal sweet-sultan. 



Melchers 1915 (159): Apparently "unaffected." Kansas (in greenhouse). 



Centrosema pubescens. (M, S) 



Beeley 1939 (14)' Has formed a satisfactory cover in instances where the 



more woody covers had been killed by root knot. Severe infestation 



illustrated. Malaya. 



Centuryplant, see Agave. 



Ceratonia siliqua, carob, St. Johnsbread. (C) 



Bessey 1911 (16): Nematodes not abundant and no injury observed. 



California Nematode Committee 1925: 28 Resistant. 



Cereus spp. (N) 



Grower: Vigorous; not injured by infestation. California. 



Chaetochloa, see Setaria. 



Chamaecyparis spp., "cypress," "retinispora." (C) 



Blattny" 1930 (18): Knotted root illustrated. Czechoslovakia. 

 Hume 1937: 29 No harmful infestation ever seen. Florida. 



27 See discussion by Steiner on p. 139 of reference given in footnote 4, p. 6. 



28 See footnote 6, p. 8. 



29 See footnote 5, p. 8. 



