Commodity risk assessment of debarked conifer wood chips fumigated with sulfuryl fluoride from the US
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View abstract on PubMed
Summary
This summary is machine-generated.Sulfuryl fluoride (SF) fumigation effectively controls the pine wood nematode (Bursaphelenchus xylophilus) and Monochamus vectors in debarked conifer wood chips. However, SF is less effective against fungi, and proper treatment parameters are crucial for pest freedom.
Area Of Science
- Plant Health
- Entomology
- Nematology
- Pest Risk Assessment
Background
- The European Commission sought a risk assessment on pest freedom for debarked conifer wood chips intended for the EU.
- The assessment focused on sulfuryl fluoride (SF) fumigation, a treatment proposed by the US for nematodes and insects.
- Key pests of concern include Bursaphelenchus xylophilus and its vectors, Monochamus spp., alongside 22 other EU quarantine pests.
Purpose Of The Study
- To evaluate the likelihood of pest freedom in debarked conifer wood chips treated with SF.
- To assess the efficacy of SF fumigation against Bursaphelenchus xylophilus, Monochamus spp., and other regulated pests.
- To identify critical technical elements for successful SF treatment and minimize pest presence.
Main Methods
- Risk assessment incorporating scientific and technical data provided by the US.
- Expert judgment on pest freedom likelihood, considering uncertainties.
- Expert Knowledge Elicitation (EKE) to quantify treatment efficacy for specific pests.
Main Results
- SF fumigation showed high efficacy against Bursaphelenchus xylophilus and Monochamus spp., with 95% certainty of pest freedom.
- Likelihood of pest freedom varied among the 24 evaluated pests.
- SF treatments are generally less effective against fungi than insects.
Conclusions
- SF fumigation is a viable option for ensuring pest freedom in debarked conifer wood chips, particularly for B. xylophilus and Monochamus spp.
- Critical factors for successful treatment include meeting SF parameters throughout the wood chip pile and minimizing storage time before treatment.
- Further consideration is needed for SF's efficacy against fungal pathogens.
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