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Increased susceptibility of Easter lilies to Pythium root rot as a result of infection by necrotic fleck virus complex


, : Increased susceptibility of Easter lilies to Pythium root rot as a result of infection by necrotic fleck virus complex. Acta Horticulturae (47): 91-97

Roots of Lilium longiflorum plants infected with necrotic fleck virus complex were found to be more severely damaged by P. splendens than roots of plants not showing virus symptoms. In addition to having more root rot, plants infected with both pathogens were not as tall and did not produce as many roots or flowers as plants infected only by root-rotting fungi.


Accession: 000114778

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Related references

Raabe R.D., 1975: Increased susceptibility of easter lilies to pythium splendens rot as a result of infection by necrotic fleck virus complex. Acta Horticulturae (Wageningen) 47: 91-97

Powell, Cc, 1982: Evaluation of Pythium fungicides on Easter lilies, 1981 Easter lily (Lilium longiflorum Nellie White), Pythium root rot; Pythium splendens. Fungicide and nematicide tests results American Phytopathological Society7(37): 136

Dodds, J.; Walton, G., 1979: Necrotic fleck disease of Easter lilies in Connecticut. Connecticut greenhouse newsletter: (92) 1-3

Tisdale, W.B.; Ruehle, G.D., 1949: Pythium root rot of aroids and Easter lilies. Pythium splendens causes a destructive root rot of several aroids and Easter lilies in Florida. It is most injurious at moderate temps. Drenching the soil with formaldehyde soln. offers a possible means of control in outdoor beds, while propagatin...

Allen, T.; Anderson, W.1; Roberts, A.1; Riddle, L1; Mcmorran, J., 1981: Reinfection of virus-free Easter lilies grown among virus-infected Easter lilies Lilium longiflorum. Lily yearbook of the North American Lily Society: 4) 25-27

Civerolo E.L.; Semancik J.S.; Weathers L.G., 1968: Partial purification of virus like particles associated with the necrotic fleck disease of easter lily m lilium longiflorum m. Phytochemistry (Oxford) 58(11): 1481-1486

Allen, T.C.; Anderson, W.C.; Roberts, A.N.; Riddle, L.; McMorran, J.P., 1981: Reinfection of virus-free Easter lilies grown among virus-infected Easter lilies. Reinfection of virus-free Nellie White lilies in the first year was 1% but in the second year 26%. Distribution indicated that in the latter year aphid transmission had occurred due to inadequate oil coverage.

Ascerno, M.; Pfleger, F.1; Morgan, F1; Wilkins, H., 1983: Relationship of Rhyzoglyphus robini (Acari: Acaridae) to root rot control in greenhouse-forced Easter lilies Lilium longiflorum, Pythium ultimum. Environmental entomology 12(2): 422-425

Brierley, P.; Smith, F.F., 1945: Fleck disease of Easter lilies a menace to lily forcers. Fleck increased from 5 to 33% in 1400 flatted Easter lilies when the melon aphid was allowed to increase without control. Nicotine spraying to prevent such spread in Easter lily forcing is advised.

Seymour, Cp, 1973: Necrotic fleck of Easter lily