comprehensive weed control program · •weed control for 2013 began in 2012 or earlier • know...
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Comprehensive WeedControl Program
Burndown
Eric WebsterEric Webster
Comprehensive WeedControl Program
Burndown to Harvest
Eric WebsterEric Webster
• Weed control for 2013 began in 2012 or earlier• Know your weeds • One size does not fit all, EVERY• I believe in being aggressive• We have shown being aggressive with rates is actually more
profitable
Rice Weed Control
profitable• Initial burndown applications need to be applied early• I recommend multiple modes of action per application• Apply herbicides to small actively growing weeds• I don’t have all the answers
Weed control for 2013 began in 2012 or earlier
EVERY field is different
We have shown being aggressive with rates is actually more
Rice Weed Control
applications need to be applied earlyI recommend multiple modes of action per applicationApply herbicides to small actively growing weeds
BurndownBurndown
• Start with a clean seedbed• First application 6 to 8 weeks prior to planting• Look at mixtures to broaden spectrum• One size does not fit all
Burndown
Herbicide2,4-DAimDicamba
• Always consult Label
FirstShotGlyphosate/RoundupGrandstandIgniteLeadoffSharpenValor
First application 6 to 8 weeks prior to plantingLook at mixtures to broaden spectrum
Burndown Program
Plant Back Restrictions30 d – Consult Label
03 d/oz – Consult Label
00
21 d0
1.5 oz - 60d/2 oz – 90d15 DPP/45 DP Flood
30 d
In CropIn Crop
• Newpath is a must in the system• Newpath brings to much to the production system to move
to a total Beyond program• In the Clearfield system, use higher rate of
application• Add a residual herbicide when possible• Multiple modes of action like Obey or
Rice Weed Control
• Multiple modes of action like Obey or Newpath broaden spectrum while at same time preventingresistance
• We don’t have another technology at this point• Follow the BASF stewardship program• The most important portion is rotate crops and chemistry• Be aggressive in rotational crop
systembrings to much to the production system to move
use higher rate of Newpath in first
herbicide when possibleMultiple modes of action like Obey or RiceBeaux mixed with
Rice Weed Control – Clearfield Rice
Multiple modes of action like Obey or RiceBeaux mixed withbroaden spectrum while at same time preventing
We don’t have another technology at this pointFollow the BASF stewardship programThe most important portion is rotate crops and chemistryBe aggressive in rotational crop
• A lot of herbicides available• Pick the one(s) that provide you with the most broad spectrum
control• Give and take is required• Never miss an opportunity to apply a residual• Reduced programs are fine but you can not walk away from it
Comprehensive Weed Control
• Use higher rates early then back off• Be aggressive in Clearfield rice, spend money on seed get the
most out of your weed control • Follow the stewardship program,
Newpath/Beyond• Mix herbicides with both applications
Pick the one(s) that provide you with the most broad spectrum
Never miss an opportunity to apply a residualReduced programs are fine but you can not walk away from it
Comprehensive Weed Control
Use higher rates early then back offin Clearfield rice, spend money on seed get the
most out of your weed control Follow the stewardship program, Newpath followed by
Mix herbicides with both applications
Newpath Plus Potential for Potential for
Plus RiceBeauxPotential for SynergisimPotential for Synergisim
Observed Red Rice Control with Products Alone 21 DAT
50
60
70
80
90
100 % Control
0
10
20
30
40
50
4 oz Newpath 2 pt RiceBeaux 1.5 pt RiceShot 0.75 pt Bolero
Observed Red Rice Control with Products Alone 21 DAT
Observed
0.75 pt Bolero 4 pt RiceBeaux 3 pt RiceShot 1.5 pt Bolero
75
80
85
90
95
100 % Control
Expected Red Rice Control with Products Mixed 21 DAT
50
55
60
65
70
75
4 oz Newpath 2 pt RiceBeaux + Newpath
1.5 pt RiceShot + Newpath
0.75 pt Bolero +
Expected
Expected Red Rice Control with Products Mixed 21 DAT
0.75 pt Bolero + Newpath
4 pt RiceBeaux + Newpath
3 pt RiceShot + Newpath
1.5 pt Bolero + Newpath
Observed vs. Expected Rice Control of Mixture 21 DAT
75
80
85
90
95
100 % Control
*
50
55
60
65
70
75
4 oz Newpath 2 pt RiceBeaux + Newpath
1.5 pt RiceShot + Newpath
0.75 pt Bolero +
Observed vs. Expected Rice Control of Mixture 21 DAT
Observed Expected
*
0.75 pt Bolero + Newpath
4 pt RiceBeaux + Newpath
3 pt RiceShot + Newpath
1.5 pt Bolero + Newpath
Newpath 4 oz + RiceBeaux 4 pt EPOST fb Newpath 4 oz LPOST
RiceBeaux 4 pt EPOSTfb Newpath 4 oz LPOST
50
60
70
80
90
100 % Control
*
Expected vs Observed Barnyardgrass Control 21 DAT
0
10
20
30
40
50
4 oz Newpath
2 pt RiceBeaux Newpath
1.5pt RiceShot Newpath
0.75 pt Bolero
Newpath
Observed Expected
*
Expected vs Observed Barnyardgrass Control 21 DAT
0.75 pt Bolero
Newpath
4 pt RiceBeaux Newpath
3 pt RiceShot Newpath
1.5 pt Bolero Newpath
• RiceBeaux at 2 pt to 4 pt increased red rice control• Similar results observed with Beyond • Activity on barnyardgrass
and Beyond
Newpath RiceBeaux
and Beyond• Helps prevent/delay weed resistance• Familiar with products
increased red rice controlSimilar results observed with Beyond
barnyardgrass increased with Newpath
RiceBeaux Mixes
Helps prevent/delay weed resistance
• I believe in residual herbicide • Command, pendimethalin, Obey, Facet, • Use a residual whenever possible• Residual herbicides help activity on all weeds including red rice• Some data indicates one application of
provide control of red rice • DO NOT DO THIS
Comprehensive Weed Control
• DO NOT DO THIS• Please follow stewardship, you will never hear me say otherwise• In my opinion, apply no less than 6
application• Can apply up to 6 oz/A of Beyond • Residual and multiple MOA applications for broad spectrum• It may cost more, but returns are higher
, Obey, Facet, Grasp, Newpath, Bolero Use a residual whenever possibleResidual herbicides help activity on all weeds including red riceSome data indicates one application of Newpath at 6 oz will
Comprehensive Weed Control
Please follow stewardship, you will never hear me say otherwiseIn my opinion, apply no less than 6 oz/A of Newpath at first
/A of Beyond Residual and multiple MOA applications for broad spectrumIt may cost more, but returns are higher
Yield of Rice Treated with Residual Herbicides
6200
6400
6600
6800
7000
7200R
ice
Yiel
d (lb
/A)
Residual Herbicides Evaluated
5200
5400
5600
5800
6000
No Residual Command
Ric
e Yi
eld
(lb/A
) Yield of Rice Treated with Residual Herbicides
Newpath Beyond
Residual Herbicides EvaluatedFacet Grasp Prowl H2O
Profit over Application Cost
740750760770780790800810820830
Newpath Beyond
Ret
urns
($/A
) ove
r he
rbic
ide
cost
11%
14%
Residual Herbicides Evaluated
650660670680690700710720730740
No Residual Command
Ret
urns
($/A
) ove
r he
rbic
ide
cost
0%
6%
$13.80/A
Profit over Application Cost
21% 22% 23%21%
10%11%
Residual Herbicides EvaluatedFacet Grasp Prowl H2O
$38.00/A $29.80/A $10.13/A
MPOST and Salvage Treatments for Sedge and Broadleaf
Control Control
MPOST and Salvage Treatments for Sedge and Broadleaf
Control Control
Hemp Sesbania Control with Broadleaf Herbicides Applied MPOST vs. Salvage
60
70
80
90
100% Control (30 DAT)
0
10
20
30
40
50
Propanil Facet G'stand Aim B'head Sharpen Halomax
Control with Broadleaf Herbicides Applied MPOST vs. Salvage
Permit + Londax Strada StradaPro Grasp GraspXtra Regiment League
• Only one application• In these studies MPOST good timing• Salvage treatments acceptable control; however, control can
be achieved but slow• Yield loss already occurred on late and salvage applications• A lot of herbicide choices
Broadleaf Herbicides Applied Application Timings
• A lot of herbicide choices • Late herbicide application research has led to options in rice
production
In these studies MPOST good timingSalvage treatments acceptable control; however, control can
Yield loss already occurred on late and salvage applications
Broadleaf Herbicides Applied across Different Application Timings
Late herbicide application research has led to options in rice
• Be aggressive• Apply to small actively growing weeds• Multiple MOA • Don’t get locked into a standard program• Every field is different
Conclusions
• Every field is different• Follow stewardship guidelines• Avoid at all costs, Rice following Rice • Rotation should not be a suggestion but mandatory • Be aggressive in rotational crop
Apply to small actively growing weeds
Don’t get locked into a standard program
Conclusions
guidelinesAvoid at all costs, Rice following Rice Rotation should not be a suggestion but mandatory Be aggressive in rotational crop
