The first record of the cosmopolitan slug Deroceras laeve (O. F. Müller, 1774) (Gastropoda: Pulmonata: Agriolimacidae) in Bhutan

Edmund Gittenberger, e-mail: edi.gittenberger@naturalis.nl

Naturalis Biodiversity Center, Pesthuislaan 7, 2333 Leiden, The Netherlands

Choki Gyeltshen, e-mail: chokig@gmail.com

National Biodiversity Centre, Serbithang, Thimphu, Bhutan

Pema Leda, e-mail: pemled12@gmail.com

National Biodiversity Centre, Serbithang, Thimphu, Bhutan

Tshelthrim Zangpo, e-mail: tzangpo@moaf.gov.bt

National Plant Protection Centre, Semtokha, Thimphu, Bhutan

Rieks Dekker van Klinken, e-mail: rieks.vanklinken@csiro.au

CSIRO, 41 Boggo Rd, Dutton Park, 4001 Brisbane, Australia
Abstract

The cosmopolitan slug Deroceras laeve (O. F. Müller) is reported from Bhutan for the first time, with the identity at one site confirmed through dissection. Here it was a minor pest of cabbage on a single farm at 2,780 m a.s.l. in north-western Bhutan. Two further, anatomically unconfirmed, records suggest that it is widespread in Bhutan. This, together with evidence that it is already widely distributed in nearby countries, suggests that it might have been in Bhutan for some time. Surveys are required to confirm its distribution and pest status in Bhutan, but current indications are that it is a very localised and occasional pest that can be readily managed through manual removal.

Key words
terrestrial slug; introduced; synanthropic; plant pest; Himalaya; cabbage; Brassica
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Folia Malacologica (2018) 26: 89-93
First published on-line: 2018-04-30 00:00:00
https://doi.org/10.12657/folmal.026.006
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