Scientific Opinion on a technical file submitted by the US Authorities to support a request to list a new option among the EU import requirements for wood of Agrilus planipennis host plants

Tabs

Article
Panel on Plant Health
EFSA Journal
EFSA Journal 2011;9(7):2185 [51 pp.].
Possible conflict of interest
1 member of the Panel did not participate in the discussion on the subject referred to above because of potential conflict of interest identified in accordance with the EFSA policy on declarations of interests
doi
10.2903/j.efsa.2011.2185
Panel members at the time of adoption
Richard Baker, Thierry Candresse, Erzsébet Dormannsné Simon, Gianni Gilioli, Jean-Claude Grégoire, Michael John Jeger, Olia Evtimova Karadjova, Gábor Lövei, David Makowski, Charles Manceau, Maria Navajas, Angelo Porta Puglia, Trond Rafoss, Vittorio Rossi, Jan Schans, Gritta Schrader, Gregor Urek, Johan Coert van Lenteren, Irene Vloutoglou, Stephan Winter and Marina Zlotina
Acknowledgements

The Panel wishes to thank the members of the Working Group on Agrilus planipennis: Jean-Claude Grégoire, Olia Evtimova Karadjova, David Makowski for the preparatory work on this scientific opinion and EFSA staff: Olaf Mosbach-Schulz and Sybren Vos for the support provided to this scientific opinion

Contact
Type
Opinion of the Scientific Committee/Scientific Panel
On request from
European Commission
Question Number
EFSA-Q-2010-01097
Adopted
20 avril 2011
Published in the EFSA Journal
8 juillet 2011
Affiliation
European Food Safety Authority (EFSA), Parma, Italy
Note
Abstract

This document presents the scientific opinion of the Panel on Plant Health on the technical file submitted by the US Authorities to support a request to list a new option among the EU import requirements for wood of Agrilus planipennis host plants. The option under consideration is a heat treatment at 60 °C for 60 min to eliminate possible infestations of the wood by the emerald ash borer (EAB). The experiments leading the US Authorities to propose this option are presented in a scientific peer reviewed publication, Myers et al. (2009). The analysis of the aggregated data published by Myers et al. (2009) and based on a Probit regression model showed that the proposed treatment cannot guarantee a control level of 99 % or higher. The analysis of the individual data either from the original measurements or from a corrected dataset, using a Probit regression model, showed that it is likely to observe one live EAB out of an infestation of 100 after the proposed heat treatment of 60 °C/60 min. To ensure a control level of 99 % the temperature of the heat treatment of 60 min should be higher than 70 °C. Results obtained with a Poisson log linear model based on individual data showed that the estimated probability that one insect or more per m2 survive the proposed heat treatment was higher than 0.6 and that there is a 0.1 probability that three insects or more per m2 survive the proposed heat treatment. Based on these results, the Panel concludes that A. planipennis is likely to survive the proposed heat treatment of 60 °C/60 min with a low uncertainty, and that the alternative option proposed in the technical file submitted by the US Authorities for wood does not guarantee the wood to be free of A. planipennis.

Keywords
Agrilus planipennis, Ash, emerald ash borer (EAB), firewood, Fraxinus spp., hard wood, heat treatment
Print on demand
Number of Pages
51