Open AccessPest categorisation of Toumeyella parvicornis
Author(s) -
Bragard Claude,
Baptista Paula,
Chatzivassiliou Elisavet,
Di Serio Francesco,
Gonthier Paolo,
Jaques Miret Josep Anton,
Fejer Justesen Annemarie,
Magnusson Christer Sven,
Milonas Panagiotis,
NavasCortes Juan A,
Parnell Stephen,
Potting Roel,
Reignault Philippe Lucien,
Stefani Emilio,
Thulke HansHermann,
Van der Werf Wopke,
Vicent Civera Antonio,
Yuen Jonathan,
Zappalà Lucia,
Grégoire JeanClaude,
Malumphy Chris,
Kertesz Virag,
Maiorano Andrea,
MacLeod Alan
Publication year - 2022
Publication title -
efsa journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.076
H-Index - 97
ISSN - 1831-4732
DOI - 10.2903/j.efsa.2022.7146
Subject(s) - pest analysis , biology , hemiptera , overwintering , pinaceae , coccidae , biological dispersal , scots pine , geography , botany , pinus <genus> , homoptera , population , demography , sociology
The EFSA Panel on Plant Health performed a pest categorisation of Toumeyella parvicornis (Cockerell) (Hemiptera: Coccidae) for the EU territory. This species is not included in EU Commission Implementing Regulation 2019/2072. T. parvicornis is a soft‐scale insect native to North America and has been introduced to the Caribbean region and the EU. It has been present in Italy since 2014 (Abruzzo, Campania, Lazio, and Apulia regions) and in France since 2021 (Provence–Alpes–Côte d'Azur region) and is under official control. It develops on Pinus spp. (Pinaceae), feeding on the needles and twigs, especially on new growth. It is sexually reproductive, has one or more generations each year (three in southern Italy), and adult females overwinter on the Pinus needles. It has a high fecundity, up to 1,014 eggs per female in Italy, with an average of 199 eggs for the summer generation and 730 for the overwintering generation. The main natural dispersal stage is the first instar, which crawls over the plant or may be dispersed further by wind and animals. The species can be transported over longer distances with plants for planting. Large populations cause yellowing, needle loss, reduction in growth and recruitment, flagging, dieback and tree mortality. It has had a significant impact to P. pinea (stone pine) in Italy and caused a catastrophic decline of P. caribbea var. bahamensis (Caribbean pine) in the Turks and Caicos Islands. Adult and immature T. parvicornis could enter the EU with Pinus plants for planting; however, the import of Pinus from third countries where the scale is found is prohibited. Host availability and climate suitability indicate that most of the EU would be suitable for establishment. Phytosanitary measures are available to inhibit further introductions and slow the spread within the EU. T. parvicornis satisfies all the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.