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Population Studies on the Potato Root Eelworm (Heterodera rostochiensis Woll.)

  • D. W. Fenwick (a1) and Elizabeth Reid (a1)

Extract

1. When potatoes are planted in eelworm infested land, the root diffusate produced results in 70—80 per cent, of the larvae emerging from the cysts in the first 4—5 weeks of growth and this effect is shown up to a distance of 6 in. from the root centre.

2. Moderate or heavy soil infestations of potato root eelworm result in a considerable root invasion prior to potatoes breaking through; several thousand cysts can result from this early attack and can cause severe dislocation of the young root.

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References

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Chitwood, B. G. and Feldmesser, J., 1948.—“Golden Nematode Population Studies.” Proc. helminth. Soc. Wash., 15, 4355.
Fenwick, D. W., 1950.—“Investigations on the emergence of larvae from cysts of the potato-root eelworm Heterodera rostochiensis. 3. Larval emergence in soil under the influence of potato-root diffusate.” J. Helminth., 24, 8690. (W.L. 11224c.)
Fenwick, D. W., 1952.—“The estimation of the cyst contents of the potato-root eelworm Heterodera rostochiensis.” J. Helminth., 26, 5568. (W.L. 11224c.)
Oostenbrink, M., 1952.—“Heterodera rostochiensis: crop rotation in relation to biology.” Int. Nemat. Symp. Training Course, Rothamsted Exp. Sta., Harpenden, Sept. 3–14, 1951, Proc., pp. 4345. (Discussion 45–49.)
Peters, B. G., 1949.—“The potato-root eelworm problem.” Agriculture, 55, 493498.

Population Studies on the Potato Root Eelworm (Heterodera rostochiensis Woll.)

  • D. W. Fenwick (a1) and Elizabeth Reid (a1)

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