44 



Occasional references to tolerance in tomato have been omitted because no 



varieties were named and because the reports were not otherwise sufficiently 



definite; much more numerous are the reports of crop losses, which also lack 

 variety names in most cases. 



Var. Chalk Early Jewel. 



Fajardo and Palo 1933 (60) : Good growth, relatively few galls; 65 seedlings 



infested, 6 free. 

 Li and Lei 1938 (138) : Nine plants infested, one free. 

 Malloch 1923 (154)' Susceptible in greenhouse. California. 



Var. Red Cherry. 



Fajardo and Palo 1933 (60) : Good growth, galls very small and relatively 



few; 57 seedlings, all infested. 

 Li and Lei 1938 (138) : 10 plants, all infested. 



Malloch 1923 (154): Susceptible in greenhouse (Red Cherry No. 81). 

 California. 



Var. Red Pear. 



Fajardo and Palo 1933 (60) : Good growth, relatively few galls; 24 seedlings 



infested, 26 free. 

 Li and Lei 1938 (138) : Five plants infested, five plants free. 

 Malloch 1923 (154) '■ Susceptible in greenhouse (seed from three sources). 

 California. 



Var. Red Rock. 



Barrons 1938: 70 Galls smaller, root system better developed than in other 



common varieties; reasonably tolerant unless heavily infested when 



young (four tests). Alabama. 

 Malloch 1923 (154)'- Susceptible in greenhouse (seed from two sources). 



California. 



Var. Stone. 



Barrons 1938: 71 Reasonably tolerant. [Same- description as for Var. Red 



Rock, q. v.] 

 Malloch 1923 (154)'- Susceptible in greenhouse. California. 

 Young 1939 (266) : Wilt resistance decreased 6 percent by root knot attack. 



Texas. 



Var. Yellow Pear. 



Li and Lei 1938 (138): Nine plants infested, one plant free. 

 Malloch 1923 (154) '• Susceptible in greenhouse. California. 



Var. Yellow Plum. 



Fajardo and Palo 1933 (60) : Good growth, galls very small and relatively 



few; 38 seedlings infested, 7 free. 

 Li and Lei 1938 (138): Eight plants infested, two free. 

 Malloch 1923 (154): Susceptible in greenhouse (seed from three sources). 



California. 



Magnolia grandifiora, southern magnolia. (N) 



Boyd 1927: 72 A "large infection" in Georgia. 

 Hume 1937: 73 Never seen "affected." Florida. 



Maize, see Sorghum and Zea. 



Malus sylvestris (Pyrus malus), apple. (C) 



Archer 1926: li In one heavily infested locality "apples had been planted 

 repeatedly but most of them are killed' or else remain stunted." 

 Missouri. [Question: Were roots dissected?] 

 Bodenheimer 1930 (19) : Galls occasionally found on seedlings. Palestine. 

 Florida State Plant Board 1919-25 (66): Infested shipments intercepted 

 from Alabama, Georgia, and North Carolina (one each). 



70 " Barrons, Keith C. varietal differences in resistance to root-knot in economic plants. 

 U. S. Bur. Plant Indus., Plant Dis. Rptr. Sup. 109: 143-151. 1938. [Mimeosraphed.] 



72 Martin, Q. Hamilton, diseases of forest and shade trees, ornamental and miscellaneous 

 plants in the tjnited states in 1926. U. S. Bur. Plant Indus., Plant Dis. Rptr. Sup. 55, pp. 334-393. 1927. 

 [Mimeographed.] See report of Boyd, p. 351. 



73 See footnote 5, p. 8. 



74 U. S. Bureau of Plant Industry, a severe infestation of the root knot nematode (caconema 

 radicicola). U. S. Bur. Plant Indus., Plant Dis. Rptr. 10: 111-112. 1926. [Mimeographed.] (Reported 

 by W. A. Archer.) 



