ROOT KNOT NEMATODE INFESTATION 41 



Koniga, see Lobularia. 

 Kraunhia, see Wisteria. 

 Kudzu-bean, see Pueraria. 

 Lablab, see Dolichos. 

 Laceflower, see Trachymene. 



Lactuca sativa, garden lettuce. (N, S) 



Bessey 1911 (16): Injury severe. 

 Bosher 1933: 63 Severe outdoors infestation discovered in British Columbia; 



plants considerably weakened. 

 Foster 1923: 64 Heavy infestations in seedbeds; total loss in some cases. 



Florida (Sanf ord) . 

 Frank 1885 (68): Favored host; infestation heavy. Germany. 

 Goffart 1934 (97): Growth of young plants arrested; outdoors infestation. 



Germany (Pomerania). 

 Hostermann 1922 (111): Infestation heavy. Germany (experimental). 

 Hume 1901 (113): Badly infested. Florida. 

 Newhall 1934: 65 Infestation threatened to handicap lettuce production on 



mucklands. New York. 

 Poole and Schmidt 1927 (194): Badly diseased. North Carolina. 

 Stone and Smith 1898 (224): Occasional heavy infestations are unusual; 

 often grown in infested soil without finding galls. [Question: At low 

 soil temperatures?] 

 Tarnani 1898 (225): Infestation heavy but little njury. Poland. 

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

 Waid 1921 (246): Injury geneially not serious; may considerably retard 



development. 

 Watson and Goff 1937 (258): Rated as No. 17 in order of susceptibility 

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



Goff, and Bratley 1937 (259): Progress is being made with 



resistant strains. Florida. 

 Lambsquarters, see Chenopodium. 



Lantana camara, common lantana. (N) 



Btjhrer, E. M. (Division of Nematology, Bureau of Plant Industry. 1934): 

 No galls found on the two plants in a mixed border otherwise heavily 

 infested. District of Columbia. 

 Gardner 1926 (75) : Found to be a host. California. 



Tyler, J. (Division of Nematology, Bureau of Plant Industry. 1936): Galls 

 very few and very small in greenhouse experiment. District of 

 Columbia. 



Larkspur, see Delphinium. 



Leek, see Allium; houseleek, see Sempervivum. 



Lemon, see Citrus. 



Lepidium sativum, garden cress. 



Hostermann 1922 (111): Infestation moderate, galls small. Germany 

 (experimental) . 



Whittle and Drain 1935 (263): Listed as slightly infested. Tennessee. 



One or two other infestations have been reported from Europe. 

 Leptosyne, see Coreopsis. 

 Lespedeza bicolor, shrub bushclover. (C, N) 



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

 Lespedeza sericea, Chinese lespedeza, perennial lespedeza, sericea. (N) 



Steiner and Buhreb 1933: 66 Infestation found. Maryland. 



Whittle and Drain 1935 (263): Sericea slightly infested. Tennessee. 



63 Bosher, J. E. an outdoors infestation of root-knot nematode in British Columbia. U. S. 

 Bur. Plant Indus., Plant Dis. Rptr. 17: 105-106. 1933. [Mimeographed.] 



64 Chupp, Charles, diseases of field and vegetable crops in the united states in 1922. TJ. S. 

 Bur. Plant Indus., Plant Dis. Bui., Sup. 26, pp. 1-163. 1923. [Mimeographed.] See information from 

 Foster, p. 154. 



" See footnote 12, p. 12. 



66 Steiner, G., and Buhrer, Edna M. recent observations on diseases caused by nematodes. 

 U. S. Bur. Plant Indus., Plant Dis. Rptr. 17: 172-173. 1933. [Mimeographed.] 



