Quality control of the predatory mite Amblyseius swirskii during long-term rearing on almond Prunus amygdalus pollen

Ansari-Shiri, Hassan; Fathipour, Yaghoub; Hajiqanbar, Hamidreza; Riahi, Elham; Riddick, Eric W.

doi:10.1007/s11829-022-09929-6

Cited by 11 publications

(14 citation statements)

References 40 publications

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“…In our study, this parameter for G30-S1 was 6.7, which was lower than what was determined for those fed continuously for 20 generations on cattail pollen and then switched to T. urticae (Gravandian et al, 2022). Furthermore, long-term reared individuals of A. swirskii after a diet switching from pollen to T. urticae had a higher ω than our study (Ansari-Shiri et al, 2022;Hadadi et al, 2022). The differences in the quality of prey, its size, the quality of previous food used for long-term rearing of predators, and the time of rearing could also be critical factors for choosing different numbers of prey by predatory mites.…”

Section: F I G U R Econtrasting

confidence: 95%

“…An improvement in the performance of other phytoseiid mites due to diet switching from pollen to natural prey has been reported. Similar findings were obtained for Amblyseius swirskii Athias‐Henriot when this predator fed on cattail pollen for 20 generations (Hadadi et al, 2022) or 45 generations on almond pollen (Ansari‐Shiri et al, 2022) and then switched to T. urticae .…”

Section: Discussionsupporting

confidence: 70%

“…Similar to our findings, Khanamani et al (2017) also indicated that Neoseiulus californicus (McGregor) sustained its predation ability on T. urticae after multiple generations of rearing on almond pollen. Furthermore, raised A. swirskii for 6 (Nemati & Riahi, 2020) and 45 generations (Ansari‐Shiri et al, 2022) on almond pollen maintained its predation potential when encountering T. urticae . Therefore, the generalist predator N. cucumeris can continuously be mass‐reared on almond pollen and then released against the two‐spotted spider mite.…”

Section: Discussionmentioning

confidence: 97%

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Effects of diet switching from almond pollen to natural prey on predation capacity of Neoseiulus cucumeris

Yazdanpanah

Fathipour

Riahi

et al. 2022

J Applied Entomology

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Monitoring the performance of a predator long-term reared on a non-prey diet when switches to a prey is extremely important to have a successful biological control program. In the current study, the efficacy of Neoseiulus cucumeris Oudemans long-term reared on almond pollen during 30 generations in encountering with its natural prey, Tetranychus urticae Koch was evaluated under laboratory conditions. Every 10 generations (G1, G10, G20 and G30), the development, reproduction, population growth potential and predation capacity of the predator were determined after exposure to the natural prey, for one (S1), three (S3) or five (S5) successive generations. The results indicated that the pre-adult duration of N. cucumeris before diet switching did not differ from those after diet switching in G1, G20 and G30. Similarly, the values of the intrinsic rate of increase (r) and finite rate of increase (λ) were not significantly affected by the diet switching in all generations tested. Furthermore, there was no significant difference in pre-adult duration between the individuals reared on natural prey for one generation or more in all generations tested, except for G1. Continuous feeding on the prey for five generations (G1-S5 and G30-S5) significantly reduced the fecundity compared with those reared for three generations (G1-S3 and G30-S3).We found that continuous feeding on natural prey for three or five generations after different periods of feeding on almond pollen did not significantly change the most important life history traits and predation capacity. In other words, the overall performance of the mass-reared predator remained effective after exposure to natural prey for five generations. It can be concluded that almond pollen is a good food source for the rearing of N. cucumeris because the population growth potential and reproduction of the predator remained constant during the long-term rearing and after switching to the natural prey.

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Section: F I G U R Econtrasting

confidence: 95%

Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 97%

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Effects of diet switching from almond pollen to natural prey on predation capacity of Neoseiulus cucumeris

Yazdanpanah

Fathipour

Riahi

et al. 2022

J Applied Entomology

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“…Long longevity of N. cucumeris's males has already been recorded when it was fed with almond pollen (Yazdanpanah et al 2021), date and castor bean pollen (Yazdanpanah et al 2022a), and T. urticae (Yazdanpanah et al 2022b). In addition, other phytoseiid mites such as Amblyseius swirskii (Athias-Henriot) reared on almond pollen (Ansari-Shiri et al 2022) and cattail pollen (Hadadi et al 2022), and Neoseiulus californicus (McGregor) fed on pollen of blooming wild almond, walnut, saffron, pomegranate as well as T. urticae (Eini et al 2022) had longer male longevity than females. It seems that wasting energy for oviposition prosses caused shorter longevity for the females compared with the males.…”

Section: Generationmentioning

confidence: 99%

Long-term effects of saffron pollen on development, reproduction and predation capacity of Neoseiulus cucumeris (Acari: Phytoseiidae)

et al. 2023

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Predatory phytoseiid mites as biocontrol agents are increasingly used in pest control programs across the globe, and Neoseiulus cucumeris (Oudemans) is one of them, which is a commercially available agent against various pests of greenhouse crops. This generalist predatory mite can feed on different foods and diets, including small arthropods and pollen. Feeding and reproducing on a pollen diet is a considerable characteristic of this predatory mite that facilitates the cost-effective production of large numbers of this predator so-called mass rearing. Therefore, the effects of saffron (Crocus sativus L.) pollen as an alternative food source on development and reproduction of N. cucumeris were determined over 20 successive generations. In addition, the predation ability of the nymphs and adults of N. cucumeris being switched to natural prey, Tetranychus urticae Koch after 10th and 20th generations was evaluated. The shortest and longest developmental time happened in the 1th and 5st generations, respectively. The predator in the 1st and 20th generations had a higher intrinsic rate of increase (r) (0.171 and 0.170 day-1, respectively) than other generations, while the 5th generation had the lowest value of this parameter. The development and fecundity of N. cucumeris was not significantly different when this predator switched to a diet of T. urticae. The results of this study revealed that rearing of N. cucumeris for 20 generations on saffron pollen did not affect the performance of the predator negatively and this alternative food source can be used for the mass rearing of N. cucumeris.

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“…Although some studies suggested that pollen of some plant species can facilitate the development of A. swirskii and this predatory mite can be reared using these pollen types (Nemati et al . 2019; Ansari-Shiri et al . 2022; Hadadi et al .…”

Section: Introductionmentioning

confidence: 99%

Bird-of-paradise, thorn apple and maize pollens are promising alternative diets for the long-term rearing of predatory mite Amblyseius swirskii (Acari: Phytoseiidae)

Yazdanpanah,

Pourbahram,

Fathipour

2023

saa

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Pollen grains can provide important nutrients for reproduction of different predators such as phytoseiid mites. Since mass rearing of phytoseiid predatory mites may be facilitated by feeding on alternative diets, the current study evaluated the utility of plant pollen as diet for mass rearing of the predatory mite Amblyseius swirskii Athias-Henriot, which is a commercially available biocontrol agent of phytophagous mites and insects. Demographic parameters of A. swirskii fed on pollens of bird-of-paradise (Caesalpinia gilliesii), thorn apple (Datura stramonium), and maize (Zea mays) were determined over 10 continuous generations. In addition, the pollens of common hibiscus (Hibiscus syriacus), and velvetleaf (Abutilon theophrasti) were assessed, but the predatory mite was unable to reach adulthood when fed on these pollens, and most of them died in nymphal stages. This study also evaluated the preying ability of A. swirskii on the natural prey Tetranychus urticae Koch before and after 10 generations. All experiments were conducted in the laboratory under controlled conditions of 25±1°C, 60±5% RH, and a photoperiod of 16:8 (L: D) h. According to the life table parameters, the pollen grains of bird-of-paradise, followed by maize and thorn apple, were shown to be promising diets for the long-term rearing of A. swirskii. Furthermore, the study found that A. swirskii reared on bird-of-paradise pollen had a high predation capability, with a mean of 677 prey per generation after 10 generations. Overall, it is concluded that while bird-of-paradise pollen was the most suitable alternative diet for the predatory mite, both maize and thorn apple pollen grains were also found to be promising diets for A. swirskii. These diets can be used for mass rearing of this predatory mite.

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Quality control of the predatory mite Amblyseius swirskii during long-term rearing on almond Prunus amygdalus pollen

Cited by 11 publications

References 40 publications

Effects of diet switching from almond pollen to natural prey on predation capacity of Neoseiulus cucumeris

Effects of diet switching from almond pollen to natural prey on predation capacity of Neoseiulus cucumeris

Long-term effects of saffron pollen on development, reproduction and predation capacity of Neoseiulus cucumeris (Acari: Phytoseiidae)

Bird-of-paradise, thorn apple and maize pollens are promising alternative diets for the long-term rearing of predatory mite Amblyseius swirskii (Acari: Phytoseiidae)

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