Pest categorisation of Grapholita prunivora

Abstract The European Commission requested EFSA to conduct a pest categorisation of Grapholita prunivora (Lepidoptera: Tortricidae), an oligophagous moth whose larvae feed mostly on leaves and fruit of different Rosaceae including cultivated apples, plums, cherries and pecans. It overwinters in soil and bark crevices of its host plants. G. prunivora has reliable identification methods, both for adults and immature stages. It occurs in North America, where it can impact pome and stone fruit production, especially when broad spectrum insecticides targeting pome and stone fruit key pests are substituted by more selective crop protection methods (i.e. mating disruption, biological control). G. prunivora is regulated in the EU by EU Directive 2000/29/EC where it is listed in Annex IIAI using the synonym Enarmonia prunivora. Plants for planting, fruit, cut branches, and bark are potential pathways. Most, but not all hosts are regulated, e.g. pecan (Carya sp.). There are no records of interception of this species on Europhyt. Biotic and abiotic conditions are conducive for establishment and spread of G. prunivora in the EU. Therefore, were G. prunivora to establish, impact on pome and stone fruit production could be expected. Considering the criteria within the remit of EFSA to assess its regulatory plant health status, G. prunivora meets with no uncertainties the criteria for consideration as a potential Union quarantine pest (it is absent from the EU, potential pathways exist, and its establishment would cause an economic impact). Given that G. prunivora is not known to occur in the EU, it fails to meet this criterion required for regulated non‐quarantine pest (RNQP) status.

[1]  J. West,et al.  Guidance on quantitative pest risk assessment , 2018, EFSA journal. European Food Safety Authority.

[2]  John W. Brown Olethreutinae Moths of the Midwestern United States, An Identification Guide , 2009 .

[3]  L. Neven,et al.  DNA Diagnostics to Identify Internal Feeders (Lepidoptera: Tortricidae) of Pome Fruits of Quarantine Importance , 2005 .

[4]  L. Neven,et al.  DNA diagnostics to identify internal feeders (Lepidoptera: Tortricidae) of pome fruits of quarantine importance. , 2005, Journal of economic entomology.

[5]  L. Neven,et al.  Biology and Development of the Wild and Golden Sport of Grapholita prunivora (Lepidoptera: Tortricidae) , 2004 .

[6]  A. Howitt Common Tree Fruit Pests , 1993 .

[7]  Thomas C. Baker,et al.  Analysis of Pheromone-Mediated Behaviors in Male Grapholitha molesta, the Oriental Fruit Moth (Lepidoptera: Tortricidae) , 1979 .

[8]  C. R. Gentry,et al.  Captures of the Oriental Fruit Moth, the Pecan Bud Moth, and the Lesser Appleworm in Georgia Field Trials with Isomeric Blends of 8-Dodecenyl Acetate and Air-Permeation Trials with the Oriental Fruit Moth Pheromone , 1975 .

[9]  W. Roelofs,et al.  Oriental Fruit Moth and Lesser Appleworm Attractant Mixtures Refined , 1974 .

[10]  I. Rivard,et al.  Grapholitha prunivora (Walsh) (Lepidoptera: Olethreutidae) in apple orchards in south-western Quebec. , 1974 .

[11]  E. Glass,et al.  Apple Insect and Mite Populations Developing After Discontinuance of Insecticides: 10-Year Record , 1971 .

[12]  P. J. Chapman,et al.  Tortricid fauna of apple in New York (Lepidoptera: Tortricidae); including an account of apples' occurrence in the State, especially as a naturalized plant. , 1971 .

[13]  W. Roelofs,et al.  Sex Pheromone of the Oriental Fruit Moth , 1969, Nature.

[14]  R. Dean Bulletin: Number 823: Moth Activity in Hudson Valley Orchards--Trapping Records of Seven Pest Species , 1969 .

[15]  M. R. Mackay Larvae of the North American Olethreutidae (Lepidoptera) , 1959 .

[16]  E. E. Brown Life Cycle of Lesser Apple Worm in Northeastern Oregon , 1953 .

[17]  E. P. Taylor Eggs and Stages of the Lesser Apple Worm , 1909 .

[18]  A. L. Quaintance The lesser appleworm. , 1908 .