Pest categorisation of Dendrolimus punctatus
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PROVIDER: S-EPMC10912981 | biostudies-literature | 2024 Mar
REPOSITORIES: biostudies-literature
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Project description:The Panel on Plant Health performed a pest categorisation of the spider mite Oligonychus perditus Pritchard and Baker (1955) (Acari, Tetranychidae), for the EU. O. perditus is a well-defined and distinguishable species, native to China, Japan, Korea and Taiwan, and recognised mainly as a pest of Juniperus spp., Chamaecyparis spp. and Platycladus spp. It is absent from the EU and is listed in Annex IIAI of Directive 2000/29/EC. Its host plants, Juniperus spp. and Chamaecyparis spp., are also listed in Annex III of Directive 2000/29/EC. Plants for planting, cut flowers and branches are considered as pathways for this pest, which is also able to disperse naturally with the wind, over rather short distances. O. perditus has repeatedly been intercepted in the EU but does not appear to have established, although a small population of O. perditus survived 8 years on a single imported plant in the Netherlands. As the host range of O. perditus coincides with that of the closely related cosmopolitan Oligonychus ununguis, which occurs in the EU, it is quite likely that the presence of O. perditus in the EU would cause little additional damage. Cultural control (sanitation and destruction of infested material) and chemical control (acaricides, e.g. abamectin) are the major control methods. All criteria assessed by EFSA for consideration as a potential quarantine pest are met, though there are some uncertainties regarding impacts. The species is presently absent from the EU, and thus, the criteria for consideration as a potential regulated non-quarantine pest are not met.
| S-EPMC7010166 | biostudies-literature
Project description:Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of Clavibacter sepedonicus, a well-defined and distinguishable bacterial plant pathogen of the family Microbacteriaceae. C. sepedonicus causes bacterial ring rot of potato and is reported from North America, Asia and Europe. The bacterium is mostly tuber transmitted, but it can also enter host plants through wounds or via contaminated equipment. C. sepedonicus is regulated in Council Directive 2000/29/EC (Annex IAII, as Clavibacter michiganensis subsp. sepedonicus) as a harmful organism whose introduction into the EU is banned. In addition, Council Directive 1993/85/EEC concerns the measures to be taken within EU Member States (MS) against C. sepedonicus to (a) detect it and determine its distribution, (b) prevent its occurrence and spread, and (c) control it with the aim of eradication. The pest is present in several EU MS, but in all cases with a restricted distribution and under official control. C. sepedonicus could enter the EU and spread primarily via host plants for planting (i.e. potato tubers). The pest could establish in the EU, as the main host (potato) is commonly grown and climatic conditions are favourable. Direct potato losses following infection by C. sepedonicus can be substantial and are due to the destruction of the vascular tissue, wilting of the plant and rotting of the tubers. Infected hosts can remain asymptomatic. The main knowledge gaps are the geographic distribution of the pest and the host range. The criteria assessed by the Panel for consideration of C. sepedonicus as a potential quarantine pest are met, while, for regulated non-quarantine pests, the criterion on the widespread presence in the EU is not met.
| S-EPMC7009210 | biostudies-literature
Project description: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.
| S-EPMC7009734 | biostudies-literature
Project description:The European Commission requested EFSA to conduct a pest categorisation of Acrobasis pirivorella (Lepidoptera: Pyralidae), a monophagous moth whose larvae exclusively feed on developing buds, flowers, and fruits of cultivated and wild Pyrus spp. A. pirivorella is a species with reliable methods available for identification. A. pirivorella occurs in north-east Asia only, causing significant damage in cultivated pears. It is regulated in the EU by Council Directive 2000/29/EC where it is listed in Annex IIAI. Within this regulation, plants for planting of Pyrus spp. is a closed pathway. This species has never been reported by Europhyt. Fruits and cut branches of Pyrus spp. are open pathways. Biotic and abiotic conditions are conducive for establishment and spread of A. pirivorella in the EU. Were A. pirivorella to establish, impact on pear production is expected. Considering the criteria within the remit of EFSA to assess its regulatory plant health status, A. pirivorella meets 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 A. pirivorella is not known to occur in the EU, it fails to meet some of the criteria required for regulated non-quarantine pest (RNQP) status.
| S-EPMC7009690 | biostudies-literature