INDEX, 



Page. 



Abbey, G., on control of root-knot 55-56, 76 



Africa, German East, occurrence of root-knot 23 



occurrence of root-knot 23, 25, 38, 42 



South, occurrence of root-knot 23, 38, 42 



Agrostis alba. See Redtop. 



Air, conditions favorable to root-knot 42-44 



See also Moisture, and Temperature. 



Alabama, occurrence of root-knot 23, 64 



Alexandria, Va., investigations of root-knot 47 



Alfalfa, susceptibility to root-knot 17, 24, 43 



Algeria, occurrence of root-knot 23 



Amaranthus spp., susceptibility to root-knot 12, 69 



Ammonium silicofluorid, application for control of root -knot 55-56 



sulphate, application for control of root-knot 54-56, 57, 58 



Andropogon spp., susceptibility to root-knot 12, 21 



Anguillula spp. , synonyms of parasite causing root-kpot 8, 9, 71 



Animals, agency in spreading root-knot 38, 73 



Aphelenchus sp., \'itality tests 30 



Apple, susceptibility to root-knot 17, 24 



Argentina, occurrence of root-knot 23, 42, 61 



Arizona, occurrence of root-knot 23, 24, 38, 42, 49, 59 



Arkansas, occurrence of root-knot 24 



Asia, occurrence of root-knot 23, 25, 49 



Asparagus, susceptibility to root-knot 12, 38 



Atkinson, G. F., on root-knot 9, 11, 12, 13, 16, 17, IS, 19, 20, 32, 35, 36, 76 



Australia, occurrence of root-knot 23 



Austria, occurrence of root-knot 23 



Bailey, L. H., on methods of control of root-knot 43, 72, 76 



Baker, H., on occurrence of nematodes 30, 76 



Barber, C. A., on occurrence of root-knot 13, 14, 20, 76 



Barley, susceptibility to root-knot 16, 21 



Beaded root-knot. See Root-knot, beaded. 



Bean, experiments for control of root-knot 54, 55, 56, 57, 62, 66, 68 



horse, susceptibility to root-knot 20, 22 



velvet, susceptibility to root-knot 20, 21, 65-67, 70, 74 



Beet, sugar, affected with root-knot, analyses, study 40-41 



nematode. See Heterodera schachtii. 



susceptibility to root-knot 12, 39, 40-41, 52, 57, 61, 82 



tiredness, disease due to Heterodera schachtii 61 



Beggarweed, Florida, resistance to root-knot 1", 65-67, 69, 70, 74 



Berkeley, M. J., on occurrence of root-knot 8, 14, 23, 76 



Bessey, E. A., investigations of root-knot 82 



Bibliography, partial, of root-knot 76-81 



Bidensspp., resistance to root -knot 21 



Big-root, variant name for root-knot 7 



Bouquet de la Grye, on susceptibility of Coffea spp. to root-knot 14, 71, 76 



Brazil, occurrence of root-knot 9, 23, 49 



Breda de Haan, J. van, on root-knot 11, 12, 13, 14, 16, 17, 18, 19, 54, 76 



Breeding. See Root-knot, breeding resistant strains. 



Brick, C, on occurrence of root-knot 16,76 



Bromus schraderi, resistance to root-knot 21 



Calcium carbid, use in experiments for control of root-knot 51, 54 



California, occurrence of root-knot 23, 24, 36, 38, 42, 49, 59 



Cane, sugar, susceptibility to root-knot 8, 19 



217 83 



