A1 Refereed original research article in a scientific journal

Recorded and potential alien invertebrate pests in Finnish agriculture and horticulture




AuthorsVanninen I, Worner S, Huusela-Veistola E, Tuovinen T, Nissinen A, Saikkonen K

PublisherAGRICULTURAL RESEARCH CENTRE FINLAND

Publication year2011

JournalAgricultural and Food Science

Journal name in sourceAGRICULTURAL AND FOOD SCIENCE

Journal acronymAGR FOOD SCI

Volume20

Issue1

First page 96

Last page113

Number of pages18

ISSN1459-6067


Abstract
It is assumed that climate change will promote pest invasions and their establishment in new regions. We have updated the list of current alien invertebrate pest species in Finland and produced a list of potential new alien pests using a self-organizing map (SOM) that ranks species in terms of their risk of entry into Finland. The 77 pest species recorded included 67 insects, 5 nematodes, 2 mites and 3 slugs. Nearly half of the alien species appeared to have invaded Finland during the last 48 years. The SOM analysis is considered a viable tool for identification of potentially high-risk invasive pests from among the multitude of potential alien invaders, and represents a useful complement to local expert knowledge-based risk assessment of potentially invasive pests. Along with the comparisons with databases of current and potential pest species, SOM analysis suggests that in the changing climate, the habitats at greatest risk from exotic pests in Finland are horticultural: orchards, ornamental hardy-nursery stocks, landscape and ornamental tree nurseries, and greenhouses.



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