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Tittel: Efficient Mass Trapping: Catching the Pest, Calliphora vicina, (Diptera, Calliphoridae), of Norwegian Stockfish Production
Forfattere:Aak, A., Birkemoe, T. & Knudsen, G.
Navn på utgivelse: Journal of Chemical Ecology
Publikasjonstype: Artikkel i vitenskaplig tidsskrift m/referee
Volum (nr): 37
Side(r): 924-931
Utgivelsesår: 2011
Avdeling: Bioforsk Plantehelse
Fagområde: Skadedyr

Attracting high numbers of adult females, extensive
trapping prior to damage, and a pest species with a
predominantly univoltine lifecycle, are important factors
contributing to the success of mass-trapping programs. We
conducted a mass-trapping experiment over 4 years, using
yellow sticky traps and odor-baited funnel traps for control
of the blowfly Calliphora vicina in stockfish production
areas in Loften, Norway. Blowfly-related damage to fish in
five mass-trapping sites was compared with damage at five
control sites. Population monitoring established a connection
between blowfly activity and damage. Blowfly activity
in the period from mid-April to mid-May was correlated
with damage to fish in the same year. Interception (sticky)
traps, based on visual cues, caught blowflies during the
early drying period, whereas odor-baited funnel traps were
more effective during the later drying period, and continued
to catch flies throughout the year until late autumn. In the
funnel traps, 80% of the captured flies were females.
Compared to control sites, mass trapping reduced overall
damage to stockfish by 8–31%. In the final year of the
experiment, we compared mass-trapping and control treatments,
controlling for drying time period and sun exposure
(which both contribute to damage), and found a damage
reduction of 63%. Thus, mass-trapping with a femaleattracting
kairomone, and using traps of different functionality
to extend the critical trapping period, in accord with
pest phenology, is an efficient method for control of C.
vicina in stockfish production