Herbicide evaluation to control smooth bedstraw - Ontario Soil and ...
Herbicide evaluation to control smooth bedstraw - Ontario Soil and ...
Herbicide evaluation to control smooth bedstraw - Ontario Soil and ...
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Smooth Bedstraw – perennial weed often found inolder hay, pasture fields with Trefoil
1 st year observation Miles<strong>to</strong>ne herbicideMiles<strong>to</strong>ne low rate= good <strong>control</strong>Miles<strong>to</strong>ne higher rate= good <strong>control</strong>check•!application June 23rd 2009
<strong>Herbicide</strong> <strong>evaluation</strong> :conclusion•!•!•!1st year <strong>evaluation</strong> visual<strong>control</strong> is good withMiles<strong>to</strong>neNo benefits in adding 2,4-DNeed <strong>to</strong> assess weedpopulation in spring of 2010•! 2010: treat another sectionwith early application i.e.vegetative stage•! do a cost analysis ofherbicide program
2010 Tried another herbicide - Trophy•!•!•!Suggested by OMAFRA provincialweed specialist Mike CowbroughRegistered on wheat <strong>and</strong> barley,selective herbicideEffective on cleavers•! might be easier on the clovers,alfalfa <strong>and</strong> trefoil•! Lower cost per acre $11•!Applied July 26 th 2010, foragest<strong>and</strong> 30cm (12’’)•! 2 nd range - with 3 strips of Trophy•!RESULTS: no visual <strong>control</strong> of<strong>bedstraw</strong>
2010 <strong>Soil</strong> <strong>and</strong> Crop Tour
Final year - 2011
Final Year 2011-
Low rate – 3years later –beautiful st<strong>and</strong> of Brome grass
Final Year 2011- population count by species
Untreated section - check45% <strong>bedstraw</strong>25% other weeds; daisies, d<strong>and</strong>elions16% alfalfa11% trefoil3 Brome grass
3 years after the herbicide applicationM = Miles<strong>to</strong>ne .10L or .20L per acre
Cost of herbicide - Miles<strong>to</strong>ne•!At the low rate .10L peracre $30 <strong>and</strong> high rate .20L per acre $60•! cus<strong>to</strong>m application rateanother $10 per acre•! Total cost : $40 or $70per acre•!Cost <strong>to</strong> reseed a foragest<strong>and</strong> (OMAFRA samplebudget) $270 per acre
Projected yield (with no fertilizer) – h<strong>and</strong> harvestede•!Miles<strong>to</strong>ne Low rate (.10Lper acre)•! 2.8- 3.4 <strong>to</strong>nne dry matterper acreor the equivalent of•! 4 bales per acre(4x5ft at 18%)
Thank You!•!•!•!•!•!•!<strong>Ontario</strong> <strong>Soil</strong> <strong>and</strong> CropNEOSCIATemiskaming CropsCoalitionGraham Gamblesregionalcommunicationcoordina<strong>to</strong>rCh<strong>and</strong>el Gambles-OMAFRA summerstudent 2009NLARS
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