RETRACTED ARTICLE: Impact of cold storage on the performance of entomophagous insects: an overview

Rathee, Mandeep; Ram, Pala

doi:10.1007/s12600-018-0683-5

Cited by 37 publications

(34 citation statements)

References 145 publications

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“…Moreover, the continuous culture chain of entomophagous natural enemies can also face periods of low production, either due to the difficulties encountered when rearing their prey or hosts, or to equipment failure or temporary unavailability of trained personnel. Regardless of the storage period, a reduction in fitness of stored insects is commonly observed and represents a serious drawback that must be considered (Colinet & Boivin, ; Rathee & Ram, ).…”

Section: Introductionmentioning

confidence: 99%

Low‐temperature storage of Exorista larvarum puparia as a tool for assisting parasitoid production

Benelli

Tóth

Dindo

2018

Entomologia Exp Applicata

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Tachinid parasitoids deserve to be better exploited as natural enemies of insect pests. The development of efficient mass‐rearing techniques for these entomophagous insects may encourage their use in biological control programs. Exorista larvarum (L.) (Diptera: Tachinidae) is a Palearctic species, which has been introduced in northern America for the control of the gypsy moth, Lymantria dispar (L.). The potential use of this polyphagous parasitoid of Lepidoptera against other forest and agricultural pests encourages research aimed at the improvement of techniques for its rearing, including protocols for storage at low temperature. This technology allows a certain degree of control over the speed of development of the stored insects and assists mass‐rearing facilities that have to match production with demand, especially during field outbreaks of pests. With the aim of developing storage protocols for E. larvarum, we investigated the effects of storage for 1–4 weeks of 1‐day‐old puparia at 15 °C. Lower temperatures (5 and 10 °C) and longer storage periods were excluded following the outcome of preliminary experiments. Parasitoid emergence and quality control parameters of the female flies obtained from the stored puparia were evaluated. In addition, female lipid body reserves were measured. The temperature of 15 °C proved to be suitable for all the durations tested, although some detrimental effects were observed following storage (e.g., lower longevity and fecundity). Our findings may prove useful to increase the flexibility of E. larvarum colony management.

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Section: Introductionmentioning

confidence: 99%

Low‐temperature storage of Exorista larvarum puparia as a tool for assisting parasitoid production

Benelli

Tóth

Dindo

2018

Entomologia Exp Applicata

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“…Cold storage is an important method for extending the shelf life of parasitoid biological control agents and their hosts (Rathee and Ram 2018). On-demand production of parasitoids can be facilitated by stockpiling host material in cool or freezing temperatures, which may either extend or terminate host development (Mahmoud and Lim 2007;Ayvaz and Karabörklü 2008) depending on the temperature and the duration of storage.…”

Section: Introductionmentioning

confidence: 99%

“…> 1 year) (Kivan and Kilic 2005;Spínola-Filho et al 2014;McIntosh et al 2019). In many cases, cold storage treatments are an effective strategy for extending the period of availability of host material for research or production of parasitoids for releases against pest insects (Orr 1988;Goldson et al 1993;Rathee and Ram 2018). However, it is important to assess the limitations of using cold-stored host material, as it may negatively impact the quantity or quality of parasitoids that are produced (Orr 1988;Chen and Leopold 2007;Colinet and Boivin 2011).…”

Section: Introductionmentioning

confidence: 99%

An effective cold storage method for stockpiling Halyomorpha halys eggs for field surveys and laboratory rearing of Trissolcus japonicus

Wong

Walz

Oscienny

et al. 2020

Preprint

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An effective stockpiling method for egg masses of the invasive brown marmorated stink bug (Halyomorpha halys [Stål]; Hemiptera: Pentatomidae) would be useful for rearing and field studies of its egg parasitoid Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae). The current method of stockpiling H. halys egg masses at sub-zero temperatures has lethal and sublethal fitness consequences for T. japonicus. We show that parasitoid emergence from egg masses refrigerated at 8°C for up to two months before parasitism is higher than from frozen egg masses and usually has minimal or no sublethal fitness effects (sex ratio, development time, activity, fecundity, longevity, and weight) on emerging T. japonicus. Only after two months of host egg refrigeration did the emergence of T. japonicus begin to decrease significantly (by 9.6% relative to untreated viable egg masses), whereas egg masses previously frozen at -80°C had a 58.8% reduction in parasitoid emergence after 14 days of storage. Refrigerated egg masses that were subsequently exposed to average field temperatures (warm: 22.9°C; cool: 13.2°C) were still suitable for T. japonicus parasitism after 7 days, while viable egg masses exposed to warm temperatures for 7 days before parasitism had 24.1% lower parasitoid emergence. Our results demonstrate that refrigeration at 8°C, while resulting in complete mortality of H. halys embryos after 10 days, are more suitable for T. japonicus parasitism than those stored at sub-zero temperatures. The quantity and quality of H. halys eggs that can be stockpiled with this method could facilitate T. japonicus laboratory colony maintenance, field monitoring, and releases.

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“…Exposure to low temperatures slows insect metabolism during rearing and can increase the flexibility of the overall rearing process . On the other hand, somatic damage may accumulate during storage, resulting in reduced quality or increased mortality of stored insects . Standard quality control procedures provide a valuable means to detect reductions in quality following storage…”

Section: Introductionmentioning

confidence: 99%

“…2 On the other hand, somatic damage may accumulate during storage, resulting in reduced quality or increased mortality of stored insects. 3,4 Standard quality control procedures provide a valuable means to detect reductions in quality following storage. 5 In SIT programmes, millions of sterile insects are bred in mass rearing facilities and released in the field, with the aim of restricting the reproduction of pest populations.…”

Section: Introductionmentioning

confidence: 99%

Cool storage of Queensland fruit fly pupae for improved management of mass production schedules

Benelli

Ponton

Lallu

et al. 2019

Pest Management Science

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BACKGROUND Cool storage is a valuable means of manipulating insect development time. The Queensland fruit fly (Q‐fly) is Australia's most economically significant pest of fruit crops. The present study investigates cool storage of Q‐fly pupae for increasing production flexibility for sterile insect technique programs. Development time, survival and fly quality were assessed following continuous storage of 1‐day‐old pupae at temperatures ranging from 13 to 25 °C. RESULTS Survival was reduced almost to zero by pupal storage at 13 and 15 °C, was greatly reduced by storage at 17 °C, and was modestly reduced by storage at 19 °C. Pupal development time was extended by 16 days at 17 °C and by 9 days at 19 °C. Cool storage negatively affected flight ability and depleted lipid reserves. Cool storage at 19 °C enhanced the ability of 3‐day‐old adults to recover from chill‐coma compared to control flies, indicating cold acclimation. CONCLUSION There is potential for use of cool storage in Q‐fly mass rearing, especially to improve alignment between production and field releases. For the purpose of delaying the development time of Q‐fly pupae with minimal quality reduction, storage at 23 °C is recommended for 1‐day‐old pupae. © 2019 Society of Chemical Industry

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RETRACTED ARTICLE: Impact of cold storage on the performance of entomophagous insects: an overview

Cited by 37 publications

References 145 publications

Low‐temperature storage of Exorista larvarum puparia as a tool for assisting parasitoid production

Low‐temperature storage of Exorista larvarum puparia as a tool for assisting parasitoid production

An effective cold storage method for stockpiling Halyomorpha halys eggs for field surveys and laboratory rearing of Trissolcus japonicus

Cool storage of Queensland fruit fly pupae for improved management of mass production schedules

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