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Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 09/06/2021
Fecha de la última actualización: | 02/09/2022
Autoria: | REDDY, A.M.; PRATT.P.D.; GREWELL, G.J.; HARMS, N.E.; CIBILS-STEWART, X.; CABRERA WALSH, G.; FALTLHAUSER, A.
Afiliación: | ANGELICA M. REDDY, USDA-ARS, Invasive Species and Pollinator Health Research Unit, Western Regional Research Center, 800 Buchanan St., Albany, CA 94710, USA.; PAUL D. PRATT, USDA-ARS, Invasive Species and Pollinator Health Research Unit, Western Regional Research Center, 800 Buchanan St., Albany, CA 94710, USA.; BRENDA J. GREWELL, USDA-ARS, Invasive Species and Pollinator Health Research Unit, University of California Davis, Department of Plant Sciences Mail Stop 4, One Shields Ave, Davis, CA 95616, USA,; NATHAN E. HARMS, US Army Engineer Research and Development Center (ERDC), Aquatic Ecology and Invasive Species Branch, 3909 Halls Ferry Rd, Vicksburg, MS 39180, USA.; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUILLERMO CABRERA WALSH, Fundación para el Estudio de Especies Invasivas (FuEDEI), Simón Bolívar 1559, Hurlingham (CP1686), Buenos Aires B1686EFA, Argentina.; ANA FALTLHAUSER, Fundación para el Estudio de Especies Invasivas (FuEDEI), Simón Bolívar 1559, Hurlingham (CP1686), Buenos Aires B1686EFA, Argentina,.
Título: | Biological and host range characteristics of lysathia flavipes (Coleoptera: Chrysomelidae), a candidate biological control agent of invasive Ludwigia spp. (Onagraceae) in the USA.
Año de publicación: | 2021
Fuente/Imprenta: | Insects, May 2021, Volumen 12, issue 5, article 471. OPEN ACCESS. Doi: https://doi.org/10.3390/insects1205047
DOI: | 10.3390/insects1205047
Idioma: | Inglés
Notas: | Article history: Received: 29 March 2021/Accepted: 17 May 2021/Published: 19 May 2021.  This research was supported by the USDA-ARS Delta Region Areawide Aquatic Weed Project (https://ucanr.edu/sites/DRAAWP/, accessed on 18 May 2021) [CRIS Project Number 2030-22000-029-00D]; and the US Army Engineer Research and Development Center, Aquatic Plant Control Research Program, Vicksburg, Mississippi [Research Agreement Number 60-2030-9-007].

Contenido:

Simple Summary: Exotic water primroses (Ludwigia spp.) are aggressive plant invaders in aquatic ecosystems worldwide. Management of exotic Ludwigia spp. is limited to physical and chemical control methods. Biological control, the use of insects to control exotic plants, is an alternative approach for
the management of exotic Ludwigia spp. However, little is known regarding the natural enemies of these plants in their native range in South America. In this study, we investigated the biology and hostrange of a natural enemy, the flea beetle Lysathia flavipes, to determine its suitability as a biocontrol agent
for exotic Ludwigia spp. in the USA. The beetle matures from egg to adult in approximately 20 days at 25 ?C. Females lived approximately 86 days and laid 278?2456 eggs over their lifespans. No-choice development and oviposition tests were conducted using four exotic Ludwigia species and seven native
USA plant species. The beetle showed little discrimination between plant species: larvae aggressively fed and completed development, and females laid eggs on most plant species regardless of origin. These results indicate that the beetle is not sufficiently host-specific for further consideration as a biological
control agent of exotic Ludwigia spp. in the USA and further testing is not warranted.

Abstract: Exotic water primroses (Ludwigia spp.) are aggressive invaders in aquatic ecosystems worldwide. To date, management of exotic Ludwigia spp. has been limited to physical and chemical control methods. Biological control provides an alternative approach for the management of invasive Ludwigia
spp. but little is known regarding the natural enemies of these exotic plants. Herein the biology and host range of Lysathia flavipes (Boheman), a herbivorous beetle associated with Ludwigia spp. in Argentina and Uruguay, was studied to determine its suitability as a biocontrol agent for multiple closely related
target weeds in the USA. The beetle matures from egg to adult in 19.9 ± 1.4 days at 25 ?C; females lived 86.3 ± 35.6 days and laid 1510.6 ± 543.4 eggs over their lifespans. No-choice development and oviposition tests were conducted using four Ludwigia species and seven native plant species. Lysathia flavipes showed little discrimination between plant species: larvae aggressively fed and completed development, and the resulting females (F1 generation) oviposited viable eggs on most plant species regardless of origin. These results indicate that L. flavipes is not sufficiently host-specific for further consideration as a biocontrol agent of exotic Ludwigia spp. in the USA and further testing is not warranted.

Palabras-Clave: | Aquatic weed; Development; Host specificity; Invasive speciest; MANAGEMENT.
Thesagro: | ENTOMOLOGIA.
Categoría del tema: | L72 Plagas de los animales

URL:

http://www.ainfo.inia.uy/digital/bitstream/item/16680/1/insects-12-00471.pdf
https://www.mdpi.com/2075-4450/12/5/471/pdf

Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (103385-1) - PXI - AP - DD - PP/Insects/ May 2021 -  -  - DIS