Primer reporte de Oligonychus coffeae (Acari: Tetranychidae) sobre Alnus acuminata en la región andina

Vásquez, Carlos; Dávila, Martha; Pomboza, P.; Telenchana, Norma

doi:10.1016/j.rmb.2017.01.007

Cited by 2 publications

(1 citation statement)

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“…Con relación al uso de especies de Anonáceas para el control de ácaros fitófagos, Ribeiro et al (2014b) demostraron el efecto del extracto de A. mucosa sobre Panonychus citri (McGregor). Considerando que Oligonychus coffeae (Nietner) ha sido considerado como plaga en aproximadamente 133 especies cultivadas en las regiones tropicales y subtropicales (Roy et al, 2014) y recientemente fue reportada en la región de la Sierra ecuatoriana, lo cual podría representar una seria amenaza en plantaciones de café y producción de rosas del país (Vásquez et al, 2017) se requiere evaluar métodos alternativos para su control. En tal sentido, en el presente estudio se planteó evaluar el efecto del extracto etanólico de hoja y semilla de chirimoya sobre el control de O. coffeae.…”

Section: Introductionunclassified

EFECTO DEL EXTRACTO ETANÓLICO DE Annona cherimola EN EL CONTROL DE oligonychus coffeae (Nietner) (Acari: Tetranychidae)

Davila,

Gavilanes,

Vasquez

et al. 2018

Trop Subtrop Agroecosyst

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In this study, the acaricidal effect of leaf and seed extract doses from Annona cherimola (625, 1250, 2500, 5000 and 10000 mg/L) on mortality rate, oviposition rate and fecundity in O. coffeae females were evaluated under laboratory conditions. The effectiveness of extracts was evaluated using the residual contact technique in rearing units using coffee leaf discs. Mortality, oviposition and fecundity of O. coffeae females were affected by type and concentration of extract. Highest mortality rate was achieved with the application of seed extracts. Additionally, it caused oviposition decrease by 46.7 or 82.5% mainly with the seed extract at 625 and 10,000 mg/L, respectively, while the leaf extract, decreasing varied from 29.9 to 62.0% at the same concentrations. Seed extract was also more effective by reducing the fecundity of O. coffeae females (28.9 eggs/female), as compared to females treated with leaf extract (36.1 eggs/female). The results showed that cherimoya could be a sustainable alternative for the management of O. coffeae populations in coffee plantations, however field studies are suggested to validate laboratory studies.

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Section: Introductionunclassified