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Negative effects of low developmental temperatures on aphid predation by Orius majusculus (Heteroptera: Anthocoridae)

Helgadóttir, Friða (2017) Negative effects of low developmental temperatures on aphid predation by Orius majusculus (Heteroptera: Anthocoridae). Biological Control, 2017 (114), pp. 59-64.

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Online at: https://doi.org/10.1016/j.biocontrol.2017.08.002

Summary

Biological control agents (BCA) are often mass reared at conditions very different from those at which they have to provide their service, especially if they are to be used under field conditions. It has been suggested that biocontrol efficiency might be enhanced by acclimating the BCA under near-field conditions for some time before release (beneficial acclimation hypothesis), and some studies (e.g. with ladybirds) have supported this idea. We reared Orius majusculus, a commercially available BCA, at three temperatures (12, 16 and 20 °C) throughout the whole development. The predation capacity for rosy apple aphids (Dysaphis plantaginea) of females from each of these treatments was tested at the same temperatures (12, 16 and 20 °C). Additionally, we tested the effects of low temperature treatment only during the last nymphal instar, to examine if shorter treatments would have the same effects.


EPrint Type:Journal paper
Subjects: Crop husbandry > Production systems
Environmental aspects > Biodiversity and ecosystem services
Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: Denmark > KU - University of Copenhagen
Denmark > Organic RDD 2 > ProtecFruit
ISSN:1049-9644
DOI:10.1016/j.biocontrol.2017.08.002
Deposited By: Broedsgaard Henriksen, Academic employee Merete
ID Code:33112
Deposited On:18 May 2018 09:35
Last Modified:18 May 2018 09:35
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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