Summary
The effect ofStreptomyces spp. (netted scab) on the growth of potato was investigated in three pot experiments, in two of which the effect ofVerticillium dahliae was also assessed.
The netted scab organisms attacked all underground plant parts of susceptible potato cultivars early in the growing season; the roots were especially seriously attacked, markedly reducing tuber yield and number but prolonging the duration of the growing season. The nematicide oxamyl had little effect on the incidence of netted scab. Repeated growing of the susceptible cv. Bintje greatly increased soil contamination with the netted scab pathogens.
V. dahliae reduced haulm growth before wilt symptoms were evident and it reduced tuber yield but not number. Oxamyl delayed infection byV. dahliae by controlling parasiticPratylenchus nematodes (mainlyP. thornei).
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References
Bång, H. O., 1979. Studies on potato russet scab. 2. Influence of infection on the production capacity of seed.Potato Research 23: 203–208.
Labruyère, R. E., 1971. Common scab and its control in seed-potato crops. Mededeling 575, Instituut voor Plantenziektenkundig Onderzoek, Wageningen, Netherlands, p. 1–71.
Mygind, H., 1965. Kartoffel-netskurv.Tidsskrift for Planteavl 69: 47–66.
Salzman, R., 1960. Kartoffelkrankheiten.Landwirtschaftliches Jahrbuch der Schweiz 74: 730.
Siti, E., J. Krikun, D. Orion & E. Cohn, 1969.Verticillium Pratylenchus interactions in potato.Phytoparasitica 7: 42.
Scholte, K., J. W. Veenbaas-Rijks & R. E. Labruyère, 1985. Potato growing in short rotations and the effect ofStreptomyces spp.,Colletotrichum coccodes, Fusarium tabacinum andVerticillium dahliae on plant growth and tuber yield.Potato Research 28: 331–348.
Scholte, K., & R. E. Labruyère, 1985. Netted scab: a new name for an old disease in Europe.Potato Research, 28: 443–448.
Wenzl, H., 1970 Der Netzschorf der Kartoffel.Der Pflanzenartz 23: 79–81.
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Scholte, K. The effect of netted scab (Streptomyces spp.) andVerticillium dahliae on growth and yield of potato. Potato Res 32, 65–73 (1989). https://doi.org/10.1007/BF02365818
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DOI: https://doi.org/10.1007/BF02365818