34 MISC. PUBLICATION 4 6, IT. S. DEPT. OF AGRICULTURE 



George 1923 (77): More subject to attack than any other plant; seldom 



killed because of rapid new root growth. Arizona. 

 Heald and Wolf 1912 (110): No apparent injury on older trees. Texas. 

 It is considered unnecessary to cite the numerous reports of losses due to root 

 knot on fig. As the majority of these reports give no data on the varieties injured, 

 they may or may not include the varieties listed below. 



Var. Celeste. 



Barker and Neal 1924 (11): Somewhat more "resistant" than other varie- 

 ties observed. Mississippi. 



Bessey 1911 (16) : Is said to be less subject to injury. 



Hayward 1939 (107): One of the principal varieties for Florida; all are 

 highly susceptible. 



Var. Poulette. 



Bessey 1911 (16): Is said to be less subject to injury. 

 Ficus glomerata. 



Mowry 1925 (171): P. I. No. 52406 [introduced from North Queensland] is 

 decidedly more resistant than the common fig. Florida. 



Fig, see Ficus. 



Figmarigold, see Mesembryanthemum. 

 Fireweed, see Erechtites. 

 Flax, see Linum. 

 Four-o'clock, see Mirabilis. 

 Foxtail, see Setaria. 



Gaillardia sp. (C, N) 



Goff 1936 (96): No infestation found (60 plants, 2 tests). Florida. 

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



Small field infestation found in Maryland. 

 Tyler, J. (Division of Nematology, Bureau of Plant Industry. 1938): 

 Not all roots remained entirely free in greenhouse test. District of 

 Co umbia. 

 Watkins 1929 (2^8): Rated as "resistant." Florida. 



Whittle and Drain 1935 (268) : Listed as seldom infested or highly re- 

 sistant. Tennessee (?). 



Galinsoga parviflora, quickweed. (N) 



Cuboni 1892 (50) : Specimens showing numerous galls were presented, 



following a paper on another subject. Italy. 

 Frank 1885 (68) : Absolutely free; other hosts preferred (one planting). 



Germany. 

 Hostermann 1922 (111): Infestation very light. German}- (experimental). 

 Muszynski and Strazewicz 1932 (174): Found infested. Poland. 

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



Gardenia thunbergi (Warneria thuribergi). (M, N) 



Anonymous 1936 (1): Not subject to attack; used as a stock for G. veitchi. 



Florida. 

 Tyler, J. (Division of Nematology, Bureau of Plant Industry. 1938): 

 Galls very small and sometimes not numerous; root growth relatively 

 very healthy (experimental, in greenhouse). District of Columbia. 



Garlic, see Allium. 

 Geranium, see Pelargonium. 



Gerbera jamesoni, flame-ray gerbera, gerbera daisy. (N, S) 



Goff 1936 (96): Infestation to heavy (33 plants, 2 winter tests); average 



rating "very lightly infested." Florida. 



Heavy infestations on gerbera have been reported from California, Florida, 



Hawaii, and Russia. Christie (86) reports that galls are sometimes small and 



inconspicuous. 



Globe-amaranth, see Gomphrena. 

 Glycine, see Soja. 



