Pest risk assessment made by France on Metcalfa pruinosa (Say) considered by France as harmful in French overseas departments of French Guiana, Guadeloupe, Martinique and Réunion - Scientific Opinion of the Panel on Plant Health - Archive ouverte HAL Accéder directement au contenu
Rapport Année : 2008

Pest risk assessment made by France on Metcalfa pruinosa (Say) considered by France as harmful in French overseas departments of French Guiana, Guadeloupe, Martinique and Réunion - Scientific Opinion of the Panel on Plant Health

David Makowski

Résumé

Following a request from the European Commission, the Panel on Plant Health was asked to deliver a scientific opinion on 30 pest risk assessments made by France on organisms which are considered by France as harmful in four French overseas departments, i.e. French Guiana, Guadeloupe, Martinique and Réunion. In particular, the Panel was asked whether these organisms can be considered as harmful organisms for the endangered area of the above departments, in the meaning of the definition mentioned in Article 2.1.(e) of Directive 2000/29/EC and thus potentially eligible for addition to the list of harmful organisms in Directive 2000/29/EC. This document presents the opinion of the Panel on Plant Health on the full[1] pest risk assessment conducted by France on Metcalfa pruinosa (Say)with French Guiana, Guadeloupe, Martinique and Réunion considered an endangered area. M. pruinosa (Insecta: Hemiptera: Flatidae), the citrus flatid planthopper or frosted moth-bug, is found on citrus, but also feeds on a wide variety of plant species, including ornamental and tree species traded commercially as hardy ornamental nursery stock. Dense populations of nymphs produce wax and may cause stunting of the shoots, while high densities of adults produce large quantities of honeydew on which sooty mould develops. The organism may reduce the vigour of whole plants, but damage to fruit and flowers on ornamentals or citrus are the main concern, because these can become unmarketable due to cosmetic damage from mould and markings. M. pruinosa occurs in Mediterranean areas of Europe, Central and North America. The Panel examined in detail the risk assessment provided, and considered the accuracy and quality of the information provided and methods applied for pest risk assessment purposes. The review was based on the principles of the International Standard on Phytosanitary Measures ISPM No. 11[2]: Pest risk analysis for quarantine pests including analysis of environmental risks and living modified organisms (2004) by the International Plant Protection Convention (FAO, 2007). Many statements in the French document are not referenced or supported by verifiable scientific data. The ratings for the probability of entry, establishment and impact given in the pest risk assessment are difficult to interpret, due to the lack of evidence presented and inconsistent judgments by the assessors. This particularly applies to the potential entry pathways, available strategies to control the pest, and the potential economic impact of the pest in the PRA area[3]. The conclusion of the French assessment is that M. pruinosa qualifies as a quarantine organism for French Guiana, Guadeloupe, Martinique and Réunion. However, the Panel cannot support this conclusion on the basis of the evidence provided in the pest risk assessment. After seeking additional information, the Panel agrees that the organism can enter and establish in the PRA area. However, the Panel found scarce evidence that the species can cause serious economic impacts once introduced. Negative impacts are not known for large areas where the organism occurs, including regions with similar climates as the PRA area, and in the few areas where they have been reported, they are restricted to temporary effects that occur after the pest has established in the new area. The Panel, based on the information provided in the document and on additional literature consulted, concludes that M. pruinosa is not appropriate for evaluation of pest risk management options for French Guiana, Guadeloupe, Martinique and Réunion and thus is not potentially eligible for addition to the list of harmful organisms in Directive 2000/29/EC
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Dates et versions

hal-01173711 , version 1 (07-07-2015)

Identifiants

  • HAL Id : hal-01173711 , version 1
  • PRODINRA : 30438

Citer

R. Baker, D. Caffier, J.W. Choiseul, P. de Clercq, E. Dormannsne-Simon, et al.. Pest risk assessment made by France on Metcalfa pruinosa (Say) considered by France as harmful in French overseas departments of French Guiana, Guadeloupe, Martinique and Réunion - Scientific Opinion of the Panel on Plant Health. [0] European Commission. 2008, 17 p. ⟨hal-01173711⟩
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