Aggie Story

1
Aggie Story

• Bird collisions into Airplane windshields are
  dangerous. DOT in DC requested proposals for the
  testing of new windshield. Aggie engineers
  received one of these grants, looked around and
  found the cheapest most effective method. They
  built the now famous CHICKEN GUN

2
Aggie Story

• The Aggies published this, and the Brits, having
  the same trouble with birds on trains, asked for
  and received it. The Brits set up the gun, and
  on the first test the chicken blasted through the
  windshield and embedded itself the drivers seat.
  They sent the data back to AM and asked for
  recommendations

3
Aggie Story

• The Aggie Engineers examined the data, came to a
  conclusion and sent the the Brits a report that
  basically said next time.
• THAW THE BIRD FIRST
• This proves once again.
• You gotta pay attention to the details

4
Peanut Productionin Fannin County

• Variety Selection and
• Weed Control

5
Variety Selection

• Selection based on individual field needs
• Consider resistance to disease, insect, etc.
  historic to field
• Increase harvest efficiency by planting different
  maturity dates.
• Decrease risk of crop failure by planting
  different genetic pedigrees
• Lemon publication

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1998 Runner Variety TrialComanche County
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Weed Control

• Weed control in peanut crop is critical
• Long term weed control program desired
• Use of sound weed control program in rotation
  crop reduces weed pressure on peanuts
• Early non-dirting cultivation, as needed
• Manage crop growth for earliest canopy cover
• Early, consistent scouting is required
• Late season scouting and mapping needed to
  predict next years weed problems
• Proper selection and use of herbicides

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Chemical Weed Control

• Weed ID is critical
• Good selection of herbicides with several tank
  mix options
• Variable price
• SOP
• Clean and calibrate sprayer prior to use
• Read and understand label prior to application.
• Check label for crop rotation intervals and
  effects.

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Peanut Herbicides

• Basagran
• Blazer
• Cadre
• Dual
• Frontier
• Poast
• Prowl

• Pursuit
• Sonalan
• Select
• Starfire
• Storm
• Tough
• Treflan
• 2,4-DB

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Peanut Weed ControlPreplant Incorporated
Herbicides - II

• Frontier
• grasses and yellow nutsedge
• less injury?
• Dual (Dual Magnum)
• grasses and yellow nutsedge
• better control/less injury ?
• Pursuit
• broadleaves, yellow/purple nutsedge

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Peanut Weed ControlPreplant Incorporated
Herbicides -I

• Yellows Treflan, Sonalan, Prowl
• similar spectrum of control
• annuals grasses some broadleaves
• /A (SonalangtProwlgtTreflan)
• incorporation critical

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Influence of Yellow Herbicides on Peanut
YieldTAES - Yoakum
Yield in lbs/A _at_ 10
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Herbicide Incorporation

• herbicide in upper 2
• operating depth (3-4)
• Roterra - best
• tandem disk - 2X
• parallel, perpendicular, angle
• field cultivator - 2X
• angle only

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Do you need a soilapplied herbicide?
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Peanut Yield (lbs/A)With/Without Soil-Applied
Herbicides (PPI)
TAES, Yoakum, 1997
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PostemergenceHerbicides
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Peanut Weed Control - PostemergenceKeys to
Success

• timing
• additives
• stickers
• nitrogen
• good growing conditions

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Cadre

• broadspectrum
• expensive
• rotation concerns
• weaknesses
• ragweed
• lambsquarter
• copperleaf

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When applied as labeled (EPOST), Cadre can

• cause stunting
• cause chlorosis
• reduce canopy widths
• has not significantly reduced yields in
  controlled studies
• temperature and moisture is important!!!

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Peanut Yield Response to CadreTAES - Yoakum
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The Burners

• Basagran
• poor on eclipta copperleaf
• Blazer Storm
• broadspectrum
• eclipta (lt2)
• copperleaf (lt6)

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What about Tough?Is it???

• good crop tolerance
• eclipta (lt2) copperleaf (lt6)
• tankmix with 2,4-DB
• no rotation problems
• 2-3 pt/A
• 14-21/A
• stinky formulation

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2,4-DB

• inexpensive
• 1-1.6 pt/A
• 3-6/A
• broadleaf weeds
• injury?

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2,4-DB Effects on Runner Peanut Yield and Grade
TAES, Yoakum, 1991-95
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Postemergent Grass

• Poast Plus
• 1.5-2.5 pt
• effective on actively growing grass
• limit of 2.5 pts/acre/season
• Select
• very effective on small actively growing grass
• 8-12 oz/acre

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Herbicides on the Horizon

• Strongarm 84 WDG
• flumioxazin
• (V-53482)

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Strongarm 84WDG

• Dow AgroSciences
• ppi or pre
• 0.4 oz/A
• yellow/purple nutsedge
• eclipta
• morningglory
• comparable to Cadre

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1997 STRONGARM TEST - Lavaca Co.Eclipta Control
- 108 DAP
LSD (0.05) 21
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Flumioxazin

• Valent
• pre
• broadleaf
• no rotation concerns
• not an ALS

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Weed control

• Annual grasses
• Annual broadleaves
• Perennial grasses
• Perennial broadleaves

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Annual grasses

• Most annual grasses
• PPI Sonalan, Prowl, Dual or Frontier
• early Post (to crop) Dual or Frontier
• Escape Poast Plus or Select
• Texas Panicum
• Fall scouting program reveals potential sites
• PPI Treflan, Sonalan or Prowl
• incorporate to 3 (deeper than on Prowl label)
• Escape Poast Plus, Select or Cadre (lt4)

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Annual Broadleaves

• Common Broadleaves
• PPI Yellows tank mixed with Dual or Pursuit
• PRE Dual or Pursuit
• early Post Tough
• Post 2,4-DB, Basagran, Blazer, Storm or Cadre
• weed dependent

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Annual Broadleaves

• Eclipta
• environment dependent (wet year)
• usually emerges later in the season
• PPI Frontier, Yellow/Pursuit offer good control
• Post Tough, Blazer Storm offer control of
  small (lt2) eclipta
• Strongarm (PPI/PRE) labeled next year

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Perennials

• Control in rotation is most economical
• Suppression of broadleaves available with
  Blazer, Starfire or 2,4-DB
• Control escape grasses with Poast Plus or Select
• Hope for a Roundup Ready peanut

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Thank you

• Any questions