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Entomological research v.48 no.2, 2018년, pp.83 - 91   SCIE
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Effects of adults body size and larvae diet on the fecundity and percent fertility of eggs laid byXylotrechus arvicola(Coleoptera: Cerambycidae) females, insect pest in Spanish vineyards : Fecundity ofX. arvicolaeggs

Rodríguez-González, Álvaro    (Research Group in Engineering and Sustainable Agriculture, Department of Engineering and Agricultural Sciences, Environment Institute Natural Resources and Biodiversity  ); Peláez, Horacio J.    (University of León  ); González-López, Óscar    (León Spain   ); Mayo, Sara    (Freelance  ); Casquero, Pedro A.    (Valladolid Spain   );
  • 초록

    Xylotrechus arvicola is a pest of grape in some vine?producing regions of the Iberian Peninsula. Biological parameters and relationships (fecundity and percent fertility of eggs in relationship to body size) of females obtained in the laboratory and captured in vineyards were studied. In laboratory conditions, the mean developmental time of larvae ranged from 384 to 392 days and pupal stage varied between 12 to 14 days. Body size (BS) of X. arvicola females was significantly bigger than males. Fecundity was greater in the laboratory (147 eggs) than in the field (50 eggs) females, but the percent fertility of the laboratory eggs was lower (16 eggs). Laboratory females showed a bigger relationship between the production of eggs and BS than females captured in vineyards. Wild females (PDO Ribera del Duero and Tierra de Leon) had a positive relationship between the percent fertility of eggs and the BS. No correlation between the percent fertility of eggs and the BS was displayed by females captured in PDO Toro, but these females had a higher percent fertility (53 eggs) than the others PDO's. These biological parameters and relationships studied suggest that the artificial diet may lack certain essential nutrients that vine varieties can provide that favor the fertility of eggs. This explains why wild females have the potential to become a problem pest in the Tempranillo grape variety, with bilateral cordon and bush vines training systems that have the highest incidence of this cerambycid.


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