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.
Titolo: | Adult feeding by the rice water weevil Lissorhoptrus oryzophilus on different host plants |
Autori: | LUPI, DANIELA (Primo) COLOMBO, MARIO (Ultimo) |
Parole Chiave: | alien species; feeding preference; host plant; image processing; laboratory assay; leaf area; Oryza sativa |
Settore Scientifico Disciplinare: | Settore AGR/11 - Entomologia Generale e Applicata |
Data di pubblicazione: | dic-2009 |
Rivista: | |
URL: | http://www.bulletinofinsectology.org/Contents/Contentsbullinsect.htm |
Tipologia: | Article (author) |
Appare nelle tipologie: | 01 - Articolo su periodico |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
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bulletinvol62-2009-229-236lupi.pdf | Pre-print (manoscritto inviato all'editore) | Open Access Visualizza/Apri | ||
bulletinvol62-2009-229-236lupi.pdf | Pre-print (manoscritto inviato all'editore) | Open Access Visualizza/Apri |