ROOT KNOT NEMATODE INFESTATION 19 



Linford 1939 (14%) '• Green stem tissue attracted larvae in vitro, though 

 somewhat more slowly than did other highly attractive tissues. Hawaii. 

 Smee 1928 (214)' Found attacked in Nyasaland. 



Bidens spp. 



Ghesquiere 1925 (87) : Harbors many nematodes. Belgian Congo. [Question: 



One of the above species?] 

 Muszynski and Strazewicz 1932 (174): B. tripartita found infested. Po- 

 land. 



Blackberry, see Rubus. 

 Blackeye-bean, see Vigna. 

 Bluegrass, see Poa. 

 Boerhaavia erecta. 



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

 Brassica alba (Sinapis alba), white mustard. (M) 



Hostermann 1922 (111): Infestation very light. Germany (experimental). 

 Brassica campestris var. napo-brassica, rutabaga. (N) 



Atkinson 1889 (4): "Badly affected" in Alabama. 



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



Sandground 1922 (207) : Turnip ("B. campestris") parasitized more or less 

 severely in South Africa. 



Taubenhaus and Ezekiel 1933 (226) : Infested occasionally, little loss. 

 Texas. 



Brassica japonica, mustard, potherb mustard. 



Barrons 1939 (13) : Appreciable signs of resistance have been observed. 

 When heavily inoculated in greenhouse, numerous larvae entered root 

 tips of seedlings (var. Giant Southern Curled). Alabama. 



Brassica juncea (B. integrifolia) , Chinese mustard. 



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

 Fajardo and Palo 1933 (60) : Subject to injury. Philippine Islands. 

 Krishna Ayyar 1933 (131) : Host in south India. 



Brassica oleracea botrytis, broccoli. (N) 



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

 Cunningham 1936 (51) : No evidence of infestation in the field; seedlings 

 severely infested in greenhouse. New York (Long Island). 



Brassica oleracea gemmifera, brussels sprouts. 



No reports whatever have been found for this plant. 

 Brassica oleracea viridis (B. oleracea acephala), collards, kale. ^N) 



Baker 1910 (5) : Collards "fairly resistant." [Question: Meaning tolerant?] 

 Brazil (Para). 



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



Taubenhaus and Ezekiel 1933 (226) : Infested occasionally, little loss. 

 Texas. 



Watson and Goff 1937 (258) : Collards rated as No. 33 in order of suscepti- 

 bility [from okra, No. 1, to corn, No. 46]. Florida. 



W^hittle and Drain 1935 (263): Listed as slightly infested. Tennessee (?). 



Zimmerley and Spencer 1923 (267) : Kale is less severely attacked but 

 serves as a host. Virginia. 



Brassica rapa, turnip. (N) 



Baker 1910 (5): Turnip extremely susceptible. Brazil (Para). 

 Barrons 1939 (13): Listed as showing "appreciable signs of resistance"; 



Var. "Purple Top White Globe" infested experimentally. Alabama. 

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

 Boyd 1926: 23 Generally of slight importance on turnips in southern Georgia, 



but observed to be severe in three gardens. 

 Cobb 1890 (39) : Young turnips die in a few weeks. New South Wales. 



23 Jehle, R. A., and Wood, Jessie I. diseases of vegetable and field crops in the united states 

 in 1925. U. S. Bur. Phnt Indus., Plant Dis. Rptr. Sup. 45, pp. 1-152, illus. 1926. [Mimeographed.] So 

 report of Boyd, p. 83. 



