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August 30, 2026European Journal of Plant PathologyOpen Access

Host status of cultivated and wild Fragaria genotypes to the quarantine root-knot nematodes Meloidogyne chitwoodi and Meloidogyne fallax

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Authors

ACAlessandro CabiancaJEJakob EggerPDPaul Dahlin

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Overview

Greenhouse experiment reveals low reproduction of quarantine root-knot nematodes in strawberry genotypes, suggesting potential to reduce soil pest loads without achieving full eradication.

Key Points

  • To evaluate the host suitability and reproductive potential of quarantine root-knot nematodes, Meloidogyne chitwoodi and Meloidogyne fallax, across wild and cultivated strawberry genotypes.
  • Tested seven cultivated and wild Fragaria genotypes under greenhouse conditions alongside Solanum lycopersicum cv. Moneymaker as a susceptible control.
  • Conducted two independent experiments testing one and two nematode generations using different inoculum densities and exposure durations.
  • Quantified host status using the reproductive factor (RF = final population / initial population).
  • All evaluated Fragaria genotypes exhibited reproductive factor values below 1 (RF < 1), whereas tomato controls supported high nematode reproduction.
  • Meloidogyne chitwoodi exhibited minimal reproduction (maximum RF = 0.025), while Meloidogyne fallax had no reproduction after one generation and minimal reproduction after two generations (maximum RF = 0.010).
  • Occasional eggs and second-stage juveniles were recovered from select strawberry plants, indicating strawberries suppress nematode populations but cannot serve as complete eradication crops.

Cite This Study

Cabianca et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0e06c1a8fb52e79d583https://doi.org/10.1007/s10658-026-03305-3
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