Herbicide cross resistance in Bromus diandrus and B. rigidus populations across southeastern Australia

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dc.contributor.authorBoutsalis, P.
dc.contributor.authorPreston, C.
dc.contributor.authorGill, G.
dc.contributor.conference18th Australasian Weeds Conference (8 Oct 2012 - 11 Oct 2012 : Melbourne, Victoria)
dc.contributor.editorEldershaw, V.
dc.date.issued2012
dc.description.abstractHerbicide resistance to Group A (AC Case-inhibiting herbicides) and B herbicides (ALSinhibiting herbicides) in Bromus diandrus and B. rigidus is becoming more common in southeastern Australia but there is limited information available on its regional distribution in either species. At present it is unclear if resistant brome populations differ in their response to different herbicides within the same herbicide group. Another unresolved question is related to the herbicide dose response of resistant brome populations. This study identified differences between Group A herbicides in their activity on resistant brome. However, increasing herbicide dose only marginally improved weed control in most cases. Varying degrees of Group B resistance was also detected in four brome populations. These initial findings suggest that increasing herbicide dose is unlikely to improve brome control but some Group A and B herbicides are more effective than others in controlling resistant populations.
dc.description.statementofresponsibilityPeter Boutsalis, Christopher Preston and Gurjeet Gill
dc.identifier.citationProceedings of the 18th Australasian Weeds Conference: Developing Solutions to Evolving Weed Problems., 2012 / Eldershaw, V. (ed./s), pp.224-228
dc.identifier.isbn978-0-646-58670-0
dc.identifier.orcidPreston, C. [0000-0002-7588-124X]
dc.identifier.urihttp://hdl.handle.net/2440/93129
dc.language.isoen
dc.publisherWeed Society of Victoria Inc.
dc.publisher.placeMelbourne, Victoria
dc.rightsCopyright status unknown
dc.subjectGreat brome
dc.subjectrigid brome
dc.subjectGroup A herbicides
dc.subjectGroup B herbicides
dc.subjectpot studies
dc.subjectmesosulfuron
dc.subjectpyroxsulam
dc.subjectimazapyr
dc.subjectimazapic
dc.subjectclethodim
dc.subjecthaloxyfop
dc.subjectquizalofop-P-ethyl
dc.subjectfluazifop-P-butyl
dc.titleHerbicide cross resistance in Bromus diandrus and B. rigidus populations across southeastern Australia
dc.typeConference paper
pubs.publication-statusPublished

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