Ecological interactions between Lygus (Hemiptera: Miridae) and their nymphal parasitoids Peristenus (Hymenoptera: Braconidae) in southern Alberta

Simple item page
dc.contributor.authorFernandez, Diana Catalina
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorCarcamo, Hector
dc.contributor.supervisorLaird, Robert A.
dc.date.accessioned2016-09-09T22:07:17Z
dc.date.available2016-09-09T22:07:17Z
dc.date.issued2016
dc.degree.levelMastersen_US
dc.description.abstractLygus 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.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4602
dc.language.isoen_CAen_US
dc.proquest.subject0329en_US
dc.proquest.subject0353en_US
dc.proquest.subject0473en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Biological Sciencesen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectalfalfaen_US
dc.subjectbiological control agentsen_US
dc.subjectcanolaen_US
dc.subjectLygusen_US
dc.subjectparasitoidsen_US
dc.subjectPeristenusen_US
dc.titleEcological interactions between Lygus (Hemiptera: Miridae) and their nymphal parasitoids Peristenus (Hymenoptera: Braconidae) in southern Albertaen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
FERNANDEZ_DIANA_MSC_2016.pdf
Size:
1.43 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
3.13 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Arts and Science, Faculty of
University of Lethbridge Theses