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Research article - Peer-reviewed, 2008

Control of Tecia solanivora (Lepidoptera : Gelechiidae) through its pheromone for mating disruption

Bosa Ochoa, Carlos Felipe; Osorio, Pablo; Cotes Prado, Alba Marina; Bengtsson, Marie; Witzgall, Peter; Fukumoto, Takehiko


The aim of this study was to evaluate the control of Tecia solanivora (Lepidoptera: Gelechiidae) through mating disruption for its possible feasibility in potato crops. In a wind tunnel, an unbalanced blend of the pheromone consisting of E3-12Ac, Z3-12Ac and 12Ac in the proportion 100:50: 100, respectively (70 mg per dispenser), produced a total inhibition of male attraction to the pheromone released by females, as compared to females releasing the pheromone (69% attraction). In the field, this blend at 10 eta g/trap significantly inhibited capture with two males/trap, whereas control traps containing E3-12Ac y Z3-12Ac (100: 1 respectively) captured 50 males/trap. In 3 ha treated with the unbalanced blend in dispensers placed at the base of potato plants at a density of 1,227 dispensers/ha (equivalent to 86 g of pheromone/ha), male attraction was significantly reduced to monitoring traps by 94%, by 89% to traps with females, and mating of confined pairs was reduced by 67%, in comparison with a control area (1 ha untreated). These results indicate the potential of this technique for reducing populations of the pest.

Published in

Revista Colombiana De Entomologia
2008, volume: 34, number: 1, pages: 68-75

Authors' information

Bosa Ochoa, Carlos Felipe
Osorio, Pablo
Cotes Prado, Alba Marina
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Fukumoto, Takehiko

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