Presentation is loading. Please wait.

Presentation is loading. Please wait.

Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan.

Similar presentations


Presentation on theme: "Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan."— Presentation transcript:

1 Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan

2 U.S. Planted Acres – 2012 (X 1000) NASS June 29, 2012

3 The Peanut Weed Control Toolbox 19 active ingredients PPI/PRE Sonalan Prowl/Pendimax Dual Magnum/Generics Outlook/Propel Pursuit Spartan Charge Solicam Strongarm Valor POST Aim (Harvest Aid) Gramoxone Inteon/Firestorm/Parazone Basagran Ultra Blazer Cadre/Impose Classic Cobra Poast/Poast Plus Pursuit Select/Arrow/Trigger Storm 2,4-DB

4 tested under experimental MON capsule suspension formulation (micro-encapsulated) –3CS Acetochlor + safener = Harness or Surpass –First mention in literature was in 1970 (A new selective herbicide: MON 097, PROC NCWCC 25:56-59) Currently labeled for use in cotton, soybeans, field corn, grain sorghum MOA = 15 –Very long chain fatty acid inhibitor –Same MOA as metolachlor (Dual)

5 Microencapsulation small herbicide particles surrounded by polymer shell suspended in carrier

6 Warrant is not Lasso!!!!

7 Objective To evaluate the tolerance of peanut to various applications of Warrant (acetochlor) under weed-free conditions.

8 Materials and Methods – I General Small-plot techniques Locations (4) –Georgia Ty Ty, Plains –North Carolina Rocky Mount, Lewiston 4 replications weed-free Irrigated ANOVA –LSD (0.05)

9 Materials and Methods – II Locations Ty PlainsRocky MountLewiston VarietyGA-06G Champs Soil TypeTifton sand Greenville sandy clay loam Aycock very fine loamy sand Norfolk loamy sand Planting DateMay 9May 19May 10May 2 PPIMay 9 (rototiller) May 19 (rototiller) May 2 (field cultivator – 2X, R/B*) May 2 (field cultivator – 2X, R/B) PREMay 10May 19May 10May 2 EPOSTMay 27 (18 DAP) June 1 (13 DAP) May 31 (21 DAP) May 26 (24 DAP) POSTJune 14 (36 DAP) June 13 (25 DAP) June 15 (36 DAP) June 13 (42 DAP) *R/B = rip and bed

10 Materials and Methods – III Treatments PPI, PRE, EPOST, POST 3 or 6 pt/A –Dual 1.33 pt/A EPOST –Gramoxone 12 oz/A + 16 oz/A + 3 pt/A or Dual 1.33 pt/A POST 4 oz/A + 3 pt/A or Dual 1.33 pt/A

11 Results

12 Influence of PPI Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864

13 Influence of PRE Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = %

14 Influence of EPOST Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = 864

15 Influence of POST Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = %, -8.1%

16 Influence of EPOST Gramoxone/ Storm on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = %

17 Influence of POST Cadre Treatments on Peanut Yield (lbs/A) LSD (0.05) Ponder = 354 Plains = NS Rocky Mount = 748 Lewiston = %

18 Peanut Response to 6 pt/A PPI or PRE Ponder July DAP NTC PPIPRE*

19 Peanut Response to 6 pt/A EPOST OR POST Ponder July DAP NTC EPOST (18 DAP)POST (36 DAP)*

20 Summary No yield loss from any treatment at Plains, Rocky Mount, or Lewiston Significant yield loss at Ponder from …… 6 pt/A – PRE and POST ( %) –Dual 1.33 pt/A – POST (8.1%) –Gramoxone Inteon + Storm + Dual Magnum – EPOST (9.6%) –Cadre + Warrant (3 pt/A) – POST (9.7%)

21 Questions?


Download ppt "Peanut Response to Warrant (Acetochlor) E.P. Prostko*, T.L. Grey, and D.L. Jordan."

Similar presentations


Ads by Google