Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions

Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions

ABSTRACT The avocado red mite Oligonychus yothersi (McGregor) is the most important avocado (Persea americana Mill.) foliar pest in Chile, infesting ‘Hass’ avocado between mid-summer and late autumn. The post-embryonic development, survival, longevity and life table parameters of...

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Autores principales: Rioja,Tommy, Tello,Víctor, Zarzar,Miguel, Cardemil,Antonieta, Ceballos,Ricardo
Lenguaje:English
Publicado: Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:
Avocado red mite
fecundity
life history
post-embryonic
Tetranychidae
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400557
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spelling oai:scielo:S0718-583920190004005572019-11-19Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditionsRioja,TommyTello,VíctorZarzar,MiguelCardemil,AntonietaCeballos,Ricardo Avocado red mite fecundity life history post-embryonic Tetranychidae ABSTRACT The avocado red mite Oligonychus yothersi (McGregor) is the most important avocado (Persea americana Mill.) foliar pest in Chile, infesting ‘Hass’ avocado between mid-summer and late autumn. The post-embryonic development, survival, longevity and life table parameters of O. yothersi were evaluated on both young and mature ‘Hass’ avocado leaves at 25 ± 0.7 °C, 60 ± 5% relative humidity and 16:8 h photoperiod. The time for larvae, protonymphs and deutonymphs to develop was longer on young leaves than on mature leaves. The immature stage of O. yothersi was shorter (9.29 ± 0.22 d) on mature leaves than on young leaves (14.43 ± 0.28 d); O. yothersi also exhibited higher survival rates for larvae, protonymphs, and deutonymphs on mature leaves. The net reproductive rate (R0) 52.756 ± 1.749 individuals female-1; intrinsic rate of increase (rm) 0.241 ± 0.002 female female-1 d-1, and finite rate of increase (λ) 1.273 ± 0.002 female female-1 of O. yothersi were significantly higher on mature avocado leaves than on young leaves (R0 = 2.727 ± 0.271, rm = 0.049 ± 0.004, and λ = 1.051 ± 0.004). The time required to double the O. yothersi population was only 2.872 ± 0.002 d on mature leaves. Therefore, life table parameters of O. yothersi are negatively affected by young avocado leaves, suggesting that constitutive defenses present in young leaves could affect O. yothersi population parameters.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.4 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400557en10.4067/S0718-58392019000400557
institution Scielo Chile
collection Scielo Chile
language English
topic Avocado red mite
fecundity
life history
post-embryonic
Tetranychidae
spellingShingle Avocado red mite
fecundity
life history
post-embryonic
Tetranychidae
Rioja,Tommy
Tello,Víctor
Zarzar,Miguel
Cardemil,Antonieta
Ceballos,Ricardo
Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
description ABSTRACT The avocado red mite Oligonychus yothersi (McGregor) is the most important avocado (Persea americana Mill.) foliar pest in Chile, infesting ‘Hass’ avocado between mid-summer and late autumn. The post-embryonic development, survival, longevity and life table parameters of O. yothersi were evaluated on both young and mature ‘Hass’ avocado leaves at 25 ± 0.7 °C, 60 ± 5% relative humidity and 16:8 h photoperiod. The time for larvae, protonymphs and deutonymphs to develop was longer on young leaves than on mature leaves. The immature stage of O. yothersi was shorter (9.29 ± 0.22 d) on mature leaves than on young leaves (14.43 ± 0.28 d); O. yothersi also exhibited higher survival rates for larvae, protonymphs, and deutonymphs on mature leaves. The net reproductive rate (R0) 52.756 ± 1.749 individuals female-1; intrinsic rate of increase (rm) 0.241 ± 0.002 female female-1 d-1, and finite rate of increase (λ) 1.273 ± 0.002 female female-1 of O. yothersi were significantly higher on mature avocado leaves than on young leaves (R0 = 2.727 ± 0.271, rm = 0.049 ± 0.004, and λ = 1.051 ± 0.004). The time required to double the O. yothersi population was only 2.872 ± 0.002 d on mature leaves. Therefore, life table parameters of O. yothersi are negatively affected by young avocado leaves, suggesting that constitutive defenses present in young leaves could affect O. yothersi population parameters.
author Rioja,Tommy
Tello,Víctor
Zarzar,Miguel
Cardemil,Antonieta
Ceballos,Ricardo
author_facet Rioja,Tommy
Tello,Víctor
Zarzar,Miguel
Cardemil,Antonieta
Ceballos,Ricardo
author_sort Rioja,Tommy
title Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
title_short Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
title_full Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
title_fullStr Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
title_full_unstemmed Avocado ‘Hass’ leaf age affects life table parameters of Oligonychus yothersi (McGregor) (Acari: Tetranychidae) under laboratory conditions
title_sort avocado ‘hass’ leaf age affects life table parameters of oligonychus yothersi (mcgregor) (acari: tetranychidae) under laboratory conditions
publisher Instituto de Investigaciones Agropecuarias, INIA
publishDate 2019
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400557
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