30 MISC. PUBLICATION 10 6, U. S. DEPT. OF AGRICULTURE 



Rolfs (quoted by Smith 1899 (215)): Rarely attacked. 



1907 (201): Beggarweed "almost quite immune." [For the "host 



record" based on Rolfs 1898 (200) , see Stizolobium deeringianum Var. 



Florida.] 



Desmodium triflorum, three-flowered beggarweed. 



Beeley 1939 (14-) ' Infestation apparently not observed [Malaya?] nor 



reported [in literature?]; experiments projected. 

 Godfrey 1935: 39 Infestation commonly observed to be light: Hawaii. 



Desmodium spp., beggarweed. 



Barber 1901 (9): Infested legume collected, "probably a Desmodium." 



India (Madras). 

 Beeley 1939 (14-)'- Infestation frequent on D. ovalifolium; illustration of 



severely galled roots. Malaya. 

 Menzel 1929 (161): Infestation found in Netherland East Indies. 

 Ortox 1903 (187): Beggarweed ("immune") recommended for a starvation 



rotation. 

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



Florida. 



Dewberry, see Rubus. 



Dianthus barbatus, sweet-william. 



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

 Taubexhaus and Ezekiel 1933 (226): May cause serious losses. Texas. 

 [No distinction was made between D. barbatus and D. caryophyllus in 

 the discussion of their several diseases.] 



Eianthus spp. (N, S) 



Goff 1936 (96): Infestation ranged from to very heavy in annual dianthus 



(two tests) and in carnation, marguerite-carnation, and pink (one test 



each). Average rating: Dianthus "lightly infested." Florida. 

 Hostermaxx 1922 (111): No infestation found in one test, but inconclusive. 



Germany. 

 Watkixs 1929 (248): Annual dianthus rated as "resistant." Florida. 

 Watsox and Bratley 1936 (257): Progress reported in the selection of 



ornamental pinks for resistance. Florida. 



Carnation is heavily infested according to numerous other reports; pinks 

 have been called moderately infested. 



Didiscus, see Trachymene. 



Digitaria pruriens (Syntherisma pruriens), ("crabgrass"). (C) 



Godfrey 1935 : 40 Infestation commonly observed to be light. Hawaii. 

 Digitaria sanguinalis (Panicum sanguinale; Syntherisma sanguinalis), crabgrass. (N) 

 Barroxs 1939 (13): Numerous larvae entered root tips of seedlings heavily 



inoculated in greenhouse. Alabama. 

 Bessey 1911 (16): Apparently free; no infestation found. 

 Bodenheimer 1930 (19) : Infestations occur locally, seldom serious. 



Palestine. 

 Christie, J. R. (Division of Nematology, Bureau of Plant Industry. 



1939): Little or no infestation found on crabgrass in one survey in 



Virginia. 

 Georgia Coastal Plaix Experimext Statiox 1936 (83) : Crabgrass 



moderately susceptible; not effective for control rotation. 

 Godfrey 1935: 41 Infestation commonly observed to be light. Hawaii. 

 Rolfs 1907 (201): Crabgrass "almost quite immune." 



Shaw 1940 (213a): See Weeds for results of rotations including crabgrass. 

 Steixer and Buhrer 1936: i2 Specimen submitted from North Carolina, 



courtesy of E. E. Clayton. [Well infested.] 

 Wats ox 1916 (249) : Crabgrass listed among plants "immune or partially 



immune." Florida. 



39 , i0 , *' See footnote 10. p. 11. 



42 Steiner, G., and Buhrer, Edna M. observations of interest on nematode diseases of plants. 

 TJ. S. Bur. Plant Indus., Plant Dis. Rptr. 20: 90-91. 1936. [Mimeographed.] 



