Effect of long-term cold storage of the predatory mite Neoseiulus californicus at high relative humidity on post-storage biological traits

Ghazy, Noureldin Abuelfadl; Suzuki, Takeshi; Shah, Maqsood; Amano, Hiroshi; Ohyama, Katsumi

doi:10.1007/s10526-012-9441-7

Cited by 23 publications

(26 citation statements)

References 27 publications

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“…; Ghazy et al. ), while in this study, 50% of the adult males survived only 30 days. We cannot explain the difference in cold tolerance between males and females.…”

Section: Discussioncontrasting

confidence: 51%

“…The benefits of a high RH on survival during cold storage were reported for adult female phytoseiid mites (Morewood ; Ghazy et al. ,b,c), but the benefit in adult males was not previously investigated. In this study, the survival of the males was higher under 100% RH than 80% RH during storage (fig.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, Ghazy et al. (,b,c) addressed problems with the cold storage of adult females of the predatory mite Neoseiulus californicus (McGregor) (Acari: Phytoseiidae). Humidification was found to prolong the storage duration and minimize the negative effects of low air temperature on the survival during storage and post‐storage reproductive ability.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Humidity‐controlled cold storage of Neoseiulus californicus (Acari: Phytoseiidae): effects on male survival and reproductive ability

Ghazy

Suzuki

Amano

et al. 2012

J Applied Entomology

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Humidification can suppress water loss from an organism and has great potential for improving the cold storage of short‐lived arthropods, such as predatory mites. The effectiveness of humidity‐controlled cold storage was recently verified for Neoseiulus californicus (McGregor) females but was not examined for males. Combining both males and females in one storage protocol might increase the predator population because it would enhance the opportunity for multiple mating, which is necessary for females to maximize their egg production. Newly emerged adult males were stored at an air temperature of 5°C and relative humidity (RH) of 100% or 80%. The median survival time (LT50) was 32 days at 100% RH and 14 days at 80% RH; the survival curves differed significantly. Males stored at 100% RH for 0, 10, 20 and 30 days were introduced to virgin females for mating at 25°C to evaluate their reproductive ability. The pre‐oviposition period was significantly prolonged in the females mated with males stored for ≥20 days. No negative effects of storage were observed on the oviposition period, total number of eggs or net reproduction rate (R0) in the females mated with males stored for ≤20 days or on the mean generation time (T) for those stored for 30 days. A slight decrease in the intrinsic rate of increase (rm) was observed in the females mated with males stored for ≥20 days. Our storage method can preserve N. californicus males for 20 days with only a minor reduction in their survival and reproductive ability.

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“…; Ghazy et al. ), while in this study, 50% of the adult males survived only 30 days. We cannot explain the difference in cold tolerance between males and females.…”

Section: Discussioncontrasting

confidence: 51%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Humidity‐controlled cold storage of Neoseiulus californicus (Acari: Phytoseiidae): effects on male survival and reproductive ability

Ghazy

Suzuki

Amano

et al. 2012

J Applied Entomology

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“…; Ghazy et al. ). In our study, the adult emergence rate of O. sokolowskii was notably decreased when the pupae were cold‐stored for 40 days.…”

Section: Discussionmentioning

confidence: 98%

Influence of larval rearing temperature on the quality of cold‐stored Oomyzus sokolowskii Kurdjumov (Hymenoptera: Eulophidae)

Sun

Tong

Liu

2016

J Applied Entomology

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Oomyzus sokolowskii, an important parasitoid of Plutella xylostella, has great potential for use in biological control. Storage at suboptimal temperature is valuable for increasing the shelf‐life of insect parasitoids. In this study, O. sokolowskii larvae were reared at 30/25, 25/25 and 25/20°C light/dark (65 ± 5% RH, 16 : 8 h L : D) until pupation. The pupae were then cold‐stored at 4 ± 1°C (60 ± 5% RH, full darkness). The pupae were removed out from the storage at 10, 20, 30 and 40 days after storage (DAS) and maintained at 25 ± 2°C until adults emerged or pupae died. Quality of the emerging adults and their F1 offspring were assessed. Incidence of parasitism by O. sokolowskii was higher at 30/25°C than at 25/20°C. Cold storage of O. sokolowskii pupae greatly affected the fitness of the parasitoid: adult emergence rates were lower in the 40 DAS treatment than in other treatments; when O. sokolowskii larvae developed at 25/25°C, female proportions of the emerged adults were lower in the 40 DAS treatment than in the 0 and 10 DAS treatments. Larval rearing temperature mildly affected the adult emergence rate, post‐storage developmental time and female proportion with a few exceptions. Number of parasitoids emerged per host pupa, and incidence of parasitism by the females were neither affected by larval rearing temperature nor cold storage duration. Trans‐generational effects on F1 offspring were evident in adult emergence rate, egg‐adult developmental time and female proportion which were negatively affected by long duration of storage (40 days), but not by larval rearing temperature with a few exceptions. In conclusion, O. sokolowskii pupae could be stored at 4°C for up to 30 days without significant fitness loss.

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“…Quality assurance is more than determining if products meet production requirements; it also involves the maintenance of postproduction quality (Dominiak et al, 2011). Product quality can be affected by treatments, such as feeding adults, cold storage, and preconditioning (Leopold, 2000(Leopold, , 2007Niijima et al, 2002;Tezze and Botto, 2004;Chen and Leopold, 2007;Mahmoud and Lim, 2007;Luczynski et al, 2008;Cancino et al, 2009;Chen et al, 2011;Ghazy et al, 2012;Maes et al, 2012). Product quality can be affected by treatments, such as feeding adults, cold storage, and preconditioning (Leopold, 2000(Leopold, , 2007Niijima et al, 2002;Tezze and Botto, 2004;Chen and Leopold, 2007;Mahmoud and Lim, 2007;Luczynski et al, 2008;Cancino et al, 2009;Chen et al, 2011;Ghazy et al, 2012;Maes et al, 2012).…”

Section: Utilizationmentioning

confidence: 99%

Concepts and Methods of Quality Assurance for Mass-Reared Parasitoids and Predators

Leppla

2014

Mass Production of Beneficial Organisms

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Effect of long-term cold storage of the predatory mite Neoseiulus californicus at high relative humidity on post-storage biological traits

Cited by 23 publications

References 27 publications

Humidity‐controlled cold storage of Neoseiulus californicus (Acari: Phytoseiidae): effects on male survival and reproductive ability

Humidity‐controlled cold storage of Neoseiulus californicus (Acari: Phytoseiidae): effects on male survival and reproductive ability

Influence of larval rearing temperature on the quality of cold‐stored Oomyzus sokolowskii Kurdjumov (Hymenoptera: Eulophidae)

Concepts and Methods of Quality Assurance for Mass-Reared Parasitoids and Predators

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