Are root exudation or rainfall on treated plants likely causes of pasture damage after wiper application of herbicides?

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dc.contributor.authorHarrington, KCen_US
dc.contributor.authorGhanizadeh, Hen_US
dc.contributor.authorMoyo, Cen_US
dc.contributor.authorKemp, PDen_US
dc.contributor.authorEerens, JPJen_US
dc.contributor.editorRandall, Ren_US
dc.contributor.editorLloyd, Sen_US
dc.contributor.editorBorger, Cen_US
dc.coverage.spatialPerth, Australiaen_US
dc.date.accessioned2016-10-06T21:18:40Z
dc.date.available11/09/2016en_US
dc.date.finish-date2016-09-15en_US
dc.date.finish-date2016-09-15en_US
dc.date.finish-date2016-09-15en_US
dc.date.finish-date2016-09-15en_US
dc.date.finish-date2016-09-15en_US
dc.date.finish-date2016-09-15en_US
dc.date.issued11/09/2016en_US
dc.date.start-date2016-09-11en_US
dc.date.start-date2016-09-11en_US
dc.date.start-date2016-09-11en_US
dc.date.start-date2016-09-11en_US
dc.date.start-date2016-09-11en_US
dc.date.start-date2016-09-11en_US
dc.description.abstractWiper application of herbicides to weeds sometimes causes damage to pasture plants, especially white clover, growing immediately under the wiped weeds. Two experiments were conducted to determine the potential for either exudation of herbicide from roots or rainfall washing herbicide off treated plants to cause damage to white clover after wiper application. In Experiment 1, Californian thistle and white clover were grown in the same pots within a glasshouse, then either metsulfuron or a triclopyr/picloram mixture were applied to the Californian thistle using a Rotowiper. White clover growing in pots below treated plants was significantly affected by the metsulfuron but not the triclopyr/picloram mixture, when compared with the untreated control plants. In Experiment 2, Californian thistle, white clover and perennial ryegrass were grown in separate pots within a glasshouse. Glyphosate, clopyralid, metsulfuron and a triclopyr/picloram mixture were applied to Californian thistle plants using a Rotowiper. The treated Californian thistle plants were then exposed to artificial rain from a rainfall simulator either 1 or 5 days after herbicide treatment, with pots of white clover and perennial ryegrass positioned under each Californian thistle plant during the rainfall event. All of the herbicides except glyphosate significantly affected white clover for both rainfall events, whereas only metsulfuron significantly affected perennial ryegrass for the Day 1 washing. Thus although damage from herbicide exudation does appear possible, rainfall following wiper applications is probably more likely to cause damage to clover growing under treated plants.en_US
dc.description.confidentialfalseen_US
dc.description.confidentialfalseen_US
dc.description.confidentialfalseen_US
dc.description.confidentialfalseen_US
dc.description.confidentialfalseen_US
dc.description.confidentialfalseen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.place-of-publicationPerth, Australiaen_US
dc.description.publication-statusPublished onlineen_US
dc.description.publication-statusPublished onlineen_US
dc.description.publication-statusPublished onlineen_US
dc.description.publication-statusPublished onlineen_US
dc.description.publication-statusPublished onlineen_US
dc.description.publication-statusPublished onlineen_US
dc.format.extent72 - 75en_US
dc.identifierhttp://caws.org.au/awc_contents.php?yr=2016en_US
dc.identifier.citationProceedings of the 20th Australasian Weeds Conference, 2016, pp. 72 - 75en_US
dc.identifier.elements-id282235
dc.identifier.harvestedMassey_Dark
dc.identifier.isbn978-0-646-96031-9en_US
dc.identifier.urihttps://hdl.handle.net/10179/10010
dc.publisherWeeds Society of Western Australiaen_US
dc.relation.isPartOfProceedings of the 20th Australasian Weeds Conferenceen_US
dc.relation.isreplacedby123456789/4370
dc.relation.isreplacedbyhttp://hdl.handle.net/123456789/4370
dc.relation.urihttp://caws.org.au/awc/2016/awc201610721.pdfen_US
dc.titleAre root exudation or rainfall on treated plants likely causes of pasture damage after wiper application of herbicides?en_US
dc.typeConference Paper
pubs.notesNot knownen_US
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/Institute of Agriculture and Environment
pubs.organisational-group/Massey University/College of Sciences/PVC's Office - College of Sciences
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