Data di Pubblicazione:
2009
Citazione:
Adult feeding by the rice water weevil Lissorhoptrus oryzophilus on different host plants / D. Lupi, C. Cenghialta, M. Colombo. - In: BULLETIN OF INSECTOLOGY. - ISSN 1721-8861. - 62:2(2009 Dec), pp. 229-236.
Abstract:
Laboratory assays to determine the leaf consumption rates of adult rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera
Erirhinidae), were conducted under no-choice conditions. Adults were individually reared on excised leaves of Heteranthera
reniformis Ruiz et Pavon, Echinochloa crus-galli (L.) P. Beauv., Leersia oryzoides L., Schoenoplectus mucronatus L., Bolboschoenus
maritimus L., and Alisma spp. Their consumption was at first compared at 28 °C. Results showed that E. crus-galli
was the most preferred host. No consumption was detected on S. mucronatus and Alisma spp. Further trials were conducted between
10-50 °C on E. crus-galli, L. oryzoides and B. maritimus. Feeding activity was recorded from 14 °C to 48 °C. Scars were
not detected at 10 °C, 12 °C and 50 °C for all the weeds. All the analyzed parameters resulted influenced by weed species and
temperature.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
alien species; feeding preference; host plant; image processing; laboratory assay; leaf area; Oryza sativa
Elenco autori:
D. Lupi, C. Cenghialta, M. Colombo
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