<p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>

Functional response and predation rate of Amblyseius swirskii (Athias-Henriot) on eggs of Tetranychus urticae Koch were determined on strawberry under laboratory conditions (70 ± 10% R.H. and 16L:8D h) and three constant temperatures of 25, 30 and 35°C. The type of functional response was affected...

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Main Authors: Ferdows Rafizadeh Afshar, Malihe Latifi
Format: Article
Language:English
Published: Acarological Society of Iran 2017-10-01
Series:Persian Journal of Acarology
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Online Access:https://www.biotaxa.org/pja/article/view/32392
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author Ferdows Rafizadeh Afshar
Malihe Latifi
author_facet Ferdows Rafizadeh Afshar
Malihe Latifi
author_sort Ferdows Rafizadeh Afshar
collection DOAJ
description Functional response and predation rate of Amblyseius swirskii (Athias-Henriot) on eggs of Tetranychus urticae Koch were determined on strawberry under laboratory conditions (70 ± 10% R.H. and 16L:8D h) and three constant temperatures of 25, 30 and 35°C. The type of functional response was affected by temperature. Type III functional response was determined for adult female of A. swirskii at 25°C, whereas type II was observed at 30 and 35°C. The longest handling time (Th) (0.6 ± 0.005) was observed at 25°C and the shortest handling time (0.46 ± 0.003) and higher attack rate (a) (0.56 ± 0.054) were observed at 35°C. Handling time (Th) decreased from 25 to 35°C. Temperature had a significant effect on the daily and total predation rates of each different stages: the predation rate increased from larva to adult and with temperature from 25 to 35°C, and the maximal value being reached at 35°C. The maximal predation capacity of female was about 40 eggs per day per females at 35°C. The results of this study showed the effect of temperature on functional response and predation rate of A. swirskii.
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spelling doaj-art-2e7e3926bafa4e3398dfaaa17714e1aa2025-08-20T02:29:26ZengAcarological Society of IranPersian Journal of Acarology2251-81692017-10-016410.22073/pja.v6i4.32392<p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>Ferdows Rafizadeh AfsharMalihe Latifi Functional response and predation rate of Amblyseius swirskii (Athias-Henriot) on eggs of Tetranychus urticae Koch were determined on strawberry under laboratory conditions (70 ± 10% R.H. and 16L:8D h) and three constant temperatures of 25, 30 and 35°C. The type of functional response was affected by temperature. Type III functional response was determined for adult female of A. swirskii at 25°C, whereas type II was observed at 30 and 35°C. The longest handling time (Th) (0.6 ± 0.005) was observed at 25°C and the shortest handling time (0.46 ± 0.003) and higher attack rate (a) (0.56 ± 0.054) were observed at 35°C. Handling time (Th) decreased from 25 to 35°C. Temperature had a significant effect on the daily and total predation rates of each different stages: the predation rate increased from larva to adult and with temperature from 25 to 35°C, and the maximal value being reached at 35°C. The maximal predation capacity of female was about 40 eggs per day per females at 35°C. The results of this study showed the effect of temperature on functional response and predation rate of A. swirskii. https://www.biotaxa.org/pja/article/view/32392Amblyseius swirskiibiological controlpredation ratestrawberryTetranychus urticae
spellingShingle Ferdows Rafizadeh Afshar
Malihe Latifi
<p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
Persian Journal of Acarology
Amblyseius swirskii
biological control
predation rate
strawberry
Tetranychus urticae
title <p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
title_full <p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
title_fullStr <p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
title_full_unstemmed <p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
title_short <p><strong>Functional response and predation rate of <em>Amblyseius swirskii</em> (Acari: Phytosei-idae) at three constant temperatures</strong></p>
title_sort p strong functional response and predation rate of em amblyseius swirskii em acari phytosei idae at three constant temperatures strong p
topic Amblyseius swirskii
biological control
predation rate
strawberry
Tetranychus urticae
url https://www.biotaxa.org/pja/article/view/32392
work_keys_str_mv AT ferdowsrafizadehafshar pstrongfunctionalresponseandpredationrateofemamblyseiusswirskiiemacariphytoseiidaeatthreeconstanttemperaturesstrongp
AT malihelatifi pstrongfunctionalresponseandpredationrateofemamblyseiusswirskiiemacariphytoseiidaeatthreeconstanttemperaturesstrongp