ROOT KNOT NEMATODE INFESTATION 47 



Steiner 1938: 81 Seedlings tolerant of infestation; roots beaded with galls, 

 growth apparently normal. 



Watson and Goff 1937 {258): Flourishes in spite of the infestation. Flor- 

 ida. 



Mucuna, see Stizolobium. 

 Mulberry, see Morus. 



Musa paradisiaca subsp. sapientum (M. sapientum) , common banana. (M, S) 

 Fahmy 1924 (59): Susceptible, but injury less apparent than on M. caven- 



dishii. Egypt. 

 Taubenhaus and Ezekiel 1933 (226): Banana infested occasionally, little 



loss. Texas. 

 Watson and Goff 1937 (258): Banana rated as No. 43 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. 



Musa spp., banana. (N) 



Severe infestations have been reported on M. paradisiaca var. champa, Lady- 

 finger banana (Fuller 1913 (70). South Africa) and on M. paradisiaca var. dacca 

 (Miiller 1884 (173). Germany, in greenhouse). Partial wilting of Cavendish 

 banana, M. cavendishii (M. chinensis, Chinese or dwarf banana) has been reported 

 from Florida. 82 In Egypt, where severe injuries to "banana" (mostly M. caven- 

 dishii) have been reported in several papers, the cause of the decay that ulti- 

 mately destroys the roots has not been established. Severe infestations have also 

 been reported on three other species of Musa. 



Mustard, see Brassica. 

 Myrobalan, see Primus. 

 Napier grass, see Pennisetum. 



Narcissus spp., narcissus. (C) 



Steiner, G. (Division of Nematology, Bureau of Plant Industry. 1939): 

 Never found infested. 



Narcissus has never been reported as a host plant; Whittle and Drain (263) 

 listed it on authority of Tyler (236), whose table heading permitted this mis- 

 understanding. 



Nasturtium, see Tropaeolum. 

 Natal grass, see Tricholaena. 

 Nectarine, see Amygdalus. 



Nepeta hederacea, ground-ivy. (C) 



Bosher and Newton 1933: 83 No root knots nor other symptoms. Canada. 



The California State Department of Agriculture has a record of infestation in 

 this genus. 



Nicotiana glauca, tree tobacco. 



Clayton and Foster 1940 (38): Highly resistant (experimental). 

 Kostoff and Kendall 1930 (129): Infestation less heavy than on N. 



tabacum. Bulgaria. 

 Minz, G. (Research station, Rehovot, Palestine; in letter, 1940): Found 



infested in Palestine. 



Nicotiana longifiora. 



Clayton 1940 (37a): Highly resistant or immune. 

 Nicotiana megalosiphon. 



Clayton 1940 (37a) : Highly resistant or immune. 

 Nicotiana nesophila. 



Clayton 1940 (37a): Highly resistant or immune. 



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



83 Fulton, H. R. diseases of sub-tropical fruits. U. S. Bur. Plant Indus., Plant Dis. Rptr. Sup. 39: 

 89-102. 1925. [Mimeographed.] See report of Weber, p. 99. 

 8 3 See footnote 31, p. 23. 





