Interactive effects of temperature and time on cold tolerance and spring predation in overwintering soil predatory mites (Gaeolaelaps aculeifer Canestrini)

Jensen, Kristoffer; Sørensen, Jesper Givskov; Holmstrup, Martin

doi:10.1016/j.biocontrol.2019.02.018

Cited by 5 publications

(3 citation statements)

References 55 publications

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“…Meanwhile, cold acclimation has been applied in pest management and beneficial insect utilization. For example, the increase of Thaumatotibia leucotreta flight performance by cold acclimation was useful for enhancing the efficacy of the sterile insect technique under cooler environmental conditions (Boersma et al ., 2019), and cold acclimation is advantageous for predation of Gaeolaelaps aculeifer before inoculative release in early spring (Jensen et al ., 2019). In C. megacephala , cold acclimation could lead to improve pollination efficiency, particularly at low temperature.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome analysis uncovers different avenues for manipulating cold performance in Chrysomya megacephala (Diptera, Calliphoridae)

Wang

Zhang

et al. 2022

Bull. Entomol. Res.

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Temperature strongly impacts the rates of physiological and biochemical processes, which in turn can determine the survival and population size of insects. At low temperatures performance is limited, however, cold tolerance and performance at low temperature can be improved after short- or long-term acclimation in many insect species. To understand mechanisms underlying acclimation, we sequenced and compared the transcriptome of the blowfly Chrysomya megacephala under rapid cold hardening (RCH) and long-term cold acclimation (LCA) conditions. The RCH response was dominated by genes related to immune response, spliceosome, and protein processing in endoplasmic reticulum with up-regulation during recovery from RCH. In contrast, LCA was associated with genes related to carbohydrate metabolism and cytoskeleton branching and stabilizing. Meanwhile, mRNA levels of genes related to glycerophospholipid metabolism, and some heat shock proteins (Hsps) were collectively up-regulated by both RCH and LCA. There were more genes and pathway adjustments associated with LCA than RCH. Overall, the transcriptome data provide basic information of molecular mechanisms underpinning the RCH and LCA response. The partly independent molecular responses to RCH and LCA suggest that several avenues for manipulating cold performance exist and RCH might be more effective as it only triggers fewer genes and affects the general metabolisms less. These observations provide some appropriate methods to improve cold tolerance of C. megacephala, and hold promise for developing an extended use of mass-reared C. megacephala with better cold performance as a pollinator of crops at low temperatures.

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Section: Introductionmentioning

confidence: 99%

Transcriptome analysis uncovers different avenues for manipulating cold performance in Chrysomya megacephala (Diptera, Calliphoridae)

Wang

Zhang

et al. 2022

Bull. Entomol. Res.

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“…Although the situation in Europe appears currently under control [14] due to culture rotation use promoted by European legislation [15], resistance to crop rotations has been observed in USA [16], and the demand for alternative control methods remains high. With this objective, many biological control solutions have been investigated, such as parasitoids [17][18][19], toxin from bacteria [20], entomopathogenic fungi [21,22] or nematodes [23][24][25][26][27][28][29][30] but none of these solutions proved suitable for large-scale use in maize fields.…”

Section: Introductionmentioning

confidence: 99%

A Promising Predator-In-First Strategy to Control Western Corn Rootworm Population in Maize Fields

Pasquier

Monticelli

Moreau³

et al. 2021

Agronomy

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Western Corn Rootworm is a pest of maize that mostly damages roots. Many alternative strategies have been explored to control this species, with little or non-lasting success, and it remains a threat to maize production worldwide. Gaeolaelaps aculeifer, a soil-dwelling predatory mite that inhabits the first few centimeters of the soil, showed high predatory potential against WCR larvae in the laboratory. In this study, we explored the efficiency of G. aculeifer against WCR in more realistic contexts. First, we infested maize plants isolated in pots in a greenhouse with WCR, and tested the impact of different densities of mites on plant protection. Using standard indicators of WCR population presence and impact, we confirmed that G. aculeifer has the potential to control WCR at densities starting from 100 mites/plant. Then, considering that the release of a large amount of biocontrol agents at WCR emergence might be too costly and constraining for large-scale implementation, we tested the efficiency of a predator-in-first strategy in a maize field infested by WCR. The goal was to introduce fewer G. aculeifer combined with Aleuroglyphus ovatus eggs as an alternative food source in order to let the mite population grow in the field and reach sufficient density at the critical stage for protection. This strategy gave comparable results to pesticide on all indicators examined in our field trial, highlighting the potential to sustainably manage this pest.

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“…We recently showed that G. aculeifer has promising potential as a biological control agent against P. fimata (Jensen et al, 2019b). The isotomid springtail Folsomia candida Willem (Collembola: Isotomidae) is another prey that can be reared in large quantity and serve as a nutritious prey for G. aculeifer (Heckmann et al, 2007;Jensen et al, 2019a;Krogh, 1995). In contrast to P. fimata, F. candida is fast moving and possesses a furcula, but has no pseudocelli.…”

Section: Introductionmentioning

confidence: 99%

Prey-specific experience affects prey preference and time to kill in the soil predatory mite Gaeolaelaps aculeifer Canestrini

et al. 2019

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Interactive effects of temperature and time on cold tolerance and spring predation in overwintering soil predatory mites (Gaeolaelaps aculeifer Canestrini)

Cited by 5 publications

References 55 publications

Transcriptome analysis uncovers different avenues for manipulating cold performance in Chrysomya megacephala (Diptera, Calliphoridae)

Transcriptome analysis uncovers different avenues for manipulating cold performance in Chrysomya megacephala (Diptera, Calliphoridae)

A Promising Predator-In-First Strategy to Control Western Corn Rootworm Population in Maize Fields

Prey-specific experience affects prey preference and time to kill in the soil predatory mite Gaeolaelaps aculeifer Canestrini

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