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dc.contributor.authorDouglas, D.W.
dc.contributor.authorThomas, A.G.
dc.description.abstractIn 1987 a questionnaire survey was conducted to determine the distribution of the noxious weed scentless chamomile on the Black and Gray soils of Saskatchewan. As well information was obtained on the year of first sighting, habitats affected, farmers' perception of the problem, the percentage of their land affected, and methods used to control or manage the weed. A total of 29,666 questionnaires were distributed, of which 2120 (7.1 %) usable responses were returned. Of these, 35.6 % indicated that scentless chamomile occurred on land they farmed or on adjacent roadsides. In the group which reported occurrence the most common habitat, reported by 69.5 %, was the roadside. Annual crops were reported as scentless chamomile habitats by 30.0 % and wet areas of fields, which can sometimes be cropped, by 39.0 %. The most common methods reported for control of the weed were tillage, hand-weeding and herbicide use. Of the 214 farmers who indicated herbicide use, 26.2 % used herbicides containing bromoxynil, 16.4 % used herbicides containing dicamba and 15.4 % used glyphosate. Spread of the weed has increased rapidly in the last 20 years. Of the responses to year of first sighting 19.0 % were between 1968 and 1977, and 69.0 % reported first sighting the weed within the last decade.en_US
dc.relation.ispartofSoils and Crops Workshop
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Canada*
dc.titleDistribution and rate of spread of scentless chamomile on the Black and Gray soils in Saskatchewanen_US
dc.description.versionNon-Peer Reviewed

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Attribution-NonCommercial-NoDerivs 2.5 Canada
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada