Galendromus occidentalis (Acari: Phytoseiidae) life table parameters on Oligonychus yothersi (Acari: Tetranychidae) colonies and its behavior to odors of mites, avocado shoots volatiles and synthetic compounds

Vista sencilla de ítem
dc.contributor.authorCeballos, Ricardo
dc.contributor.authorCampos M., Cristóbal
dc.contributor.authorRioja, Tommy
dc.coverageChilees_ES
dc.date.accessioned2022-09-15T15:03:52Z
dc.date.available2022-09-15T15:03:52Z
dc.date.issued2022-01
dc.description.abstractThe red mite, Oligonychus yothersi (McGregor) (Acari: Tetranychidae), is a serious pest of avocado (Persea americana Mill.) ‘Hass’ in Chile. Micro-coleopterans predators are observed in avocado orchards during outbreaks of O. yothersi, which are attracted by herbivore-induced plant volatiles (HIPVs). However, the damage to plants persists and new predators are needed. Due to its effectiveness and adaptability to dry climates, the western predatory mite Galendromus occidentalis (Nesbitt) (Acari: Phytoseiidae) has been adopted as a biological control agent on many crops. Ours objectives were to study the biological parameters of G. occidentalis preying on O. yothersi in controlled conditions and its attraction to volatile compounds from avocado shoots, live preys and four synthetic doses of methyl salicylate (MeSA) and ocimene using a Y-tube olfactometer. We found a net reproductive rate (R0) 34.41 offspring female-1, intrinsic rate of increase (rm) 0.19 females female-1 d-1, finite rate of increase (λ) 1.21 females female-1, mean generation time (T) 18.45 d, and doubling time (DT) of 3.61 d. Immature phytoseiids took 7.32 d to reach adulthood with 90% survival. Female longevity and fecundity were 36.27 d, and 59 eggs female-1, respectively. Phytoseiids show no attraction to O. yothersi volatiles or volatiles of O. yothersi-infested avocado shoots. Nevertheless, females showed a preference for synthetic MeSA and ocimene at 100 μg mL-1. Our findings indicate that O. yothersi is a potential diet to rear G. occidentalis, and MeSA and ocimene could be used in lures to manipulate its behavior in avocado orchards.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.urihttps://hdl.handle.net/20.500.14001/68687
dc.language.isoIngléses_ES
dc.numero.paginas11 p.es_ES
dc.placeofeditionChillán, Chilees_ES
dc.publisherInstituto de Investigaciones Agropecuariases_ES
dc.relation.ispartofChilean Journal of Agricultural Researches_ES
dc.relation.ispartofvolv. 82(1) p. 124-134es_ES
dc.subject.spanishpaltaes_ES
dc.subject.spanishcompuestos volatileses_ES
dc.subject.spanishacaros nocivoses_ES
dc.subject.spanishplagases_ES
dc.titleGalendromus occidentalis (Acari: Phytoseiidae) life table parameters on Oligonychus yothersi (Acari: Tetranychidae) colonies and its behavior to odors of mites, avocado shoots volatiles and synthetic compoundses_ES
dc.title.alternative[Galendromus occidentalis (Ácaro: Phytoseiidae) parámetros de la tabla de vida en Oligonychus yothersi (Acari: Tetranychidae) colonias y su comportamiento a olores de ácaros, brotes de aguacate volátiles y compuestos sintéticoses_ES
dc.typeArtículo

Archivos

Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
NR42942.pdf
Tamaño:
275.1 KB
Formato:
Adobe Portable Document Format
Descripción:
v. 82(1) p. 124-134
Descargar

Colecciones

2.2.2. Chilean Journal (Ex- Agricultura Técnica)