Evaluation of Biofumigants for Eradication of Globodera pallida in Idaho

Project Overview

Project Type: Graduate Student
Funds awarded in 2024: $30,000.00
Projected End Date: 04/30/2026
Grant Recipient: University of Idaho
Region: Western
State: Idaho
Graduate Student:
Principal Investigator:
Louise-Marie Dandurand
University of Idaho


  • Agronomic: potatoes


  • Education and Training: on-farm/ranch research
  • Pest Management: biofumigation, eradication

    Proposal abstract:

    , the pale cyst nematode, is a quarantine potato pest
    detected in Idaho in 2006. Globodera pallida can cause
    yield loss of up to 80% in heavily infested fields and poses a
    major threat to the Idaho potato industry. Potatoes cannot be
    grown in the G. pallida infested fields and other
    non-host crops are not as profitable as potatoes. Alternative
    control strategies are needed due to the lack of G.
    resistant russet potato varieties, the phase out of
    an effective fumigant methyl bromide, and the ability of G.
    to survive in soil for decades in absence of a host.
    The purpose of this study is to evaluate the efficacy of
    biofumigants as an alternative strategy of G. pallida
    control. Biofumigation strategy utilizes glucosinolate-containing
    Brassica plants to suppress diseases and pests. Previous
    research has demonstrated the effectiveness of Brassica
    seed meal extract (SME) to control G.
    . Furthermore, prior treatment with 4-hydroxybenzyl
    alcohol (HBA) increased the efficacy of B. juncea SME.
    Since HBA is one of the hydrolysis products of Sinapis
    seed meal, the impact of the combination of B.
    and S. alba will be investigated under
    greenhouse and field conditions. Treatments will also include the
    allyl isothiocyanate-based biofumigant ‘TerraMG.’ The results of
    this project will be presented to the stakeholders through
    presentations and a newsletter. If proven effective, biofumigants
    would provide a less environmentally toxic option for G.

    Project objectives from proposal:

    Research Objectives:

    1. Determine the impact of Brassica juncea
      seed meal extract (SME) in combination with Sinapis alba
      to control Globodera pallida in greenhouse using
      post-treatment egg viability and hatch assays.
    2. Evaluate how biofumigants
      affect Globodera pallida hatch and
      reproduction in comparison to Brassica juncea SME under
      field conditions.

    Educational Objectives:

    1. Present research findings on the efficacy of biofumigants on
      Globodera pallida to stakeholders at
      professional meetings.
    2. Publish a stakeholder newsletter in layman’s terms explaining
      the findings on the biofumigants and its potential as an
      alternative tool for Globodera pallida
    3. Publish a video that provides stakeholders with an overview
      of Globodera pallida containment techniques
      used in field research.
    Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.