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dc.contributor.supervisor Carcamo, Hector
dc.contributor.supervisor Laird, Robert A.
dc.contributor.author Fernandez, Diana Catalina
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2016-09-09T22:07:17Z
dc.date.available 2016-09-09T22:07:17Z
dc.date.issued 2016
dc.identifier.uri https://hdl.handle.net/10133/4602
dc.description.abstract Lygus bugs cause significant losses in commercial crops. Parasitoids (Peristenus) attack Lygus nymphs and have been considered to manage Lygus populations. The thesis provides information on the seasonal activity of three Peristenus species in southern Alberta, and a possible outcome of the European P. digoneutis in terms of Lygus control in canola, if present in the Prairies. Three native Peristenus species (P. braunae, P. carcamoi and P. broadbenti) occur sequentially during the season in southern Alberta. Overall parasitism did not exceed 16% during the season. In greenhouse trials, P. digoneutis parasitized Lygus nymphs on alfalfa and canola. Parasitism was on average up to 19% in alfalfa, and from 10-15% in canola. Nymphs’ mortality was higher in canola than alfalfa, and it increased with the presence of P. digoneutis. The potential of P. digoneutis to attack Lygus in canola can improve the latter’s management in the Prairies. en_US
dc.language.iso en_CA en_US
dc.publisher Lethbridge, Alta : University of Lethbridge, Dept. of Biological Sciences en_US
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en_US
dc.subject alfalfa en_US
dc.subject biological control agents en_US
dc.subject canola en_US
dc.subject Lygus en_US
dc.subject parasitoids en_US
dc.subject Peristenus en_US
dc.title Ecological interactions between Lygus (Hemiptera: Miridae) and their nymphal parasitoids Peristenus (Hymenoptera: Braconidae) in southern Alberta en_US
dc.type Thesis en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Biological Sciences en_US
dc.degree.level Masters en_US
dc.proquest.subject 0329 en_US
dc.proquest.subject 0353 en_US
dc.proquest.subject 0473 en_US
dc.proquestyes Yes en_US
dc.embargo No en_US


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