2012 Watermelon Production Meeting.  Sinbar  Sandea  Curbit  Reflex 2013 maybe? Good Residual Options.

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Presentation transcript:

2012 Watermelon Production Meeting

 Sinbar  Sandea  Curbit  Reflex 2013 maybe? Good Residual Options

Sandea Use in Watermelon PREEMERGENCE: 0.75 oz/A Seeded: Apply after planting, before cracking Transplant bareground/mulch: Do not transplant till 7 d after application. ROW MIDDLE AS WELL

Sandea Under Mulch 50-70% yellow nutsedge under mulch control, 70-80% Pigweed control

Sandea Use in Watermelon *DO NOT APPLY OVER MULCH and then transplant.

Amount of Sandea remaining on plastic mulch. TyTy GA, percent days Grey, Culpepper

Nontreated Sandea (0.5 oz/A) Watermelon farm in Crisp County, May Treatment at 1-leaf. Pictures to scale.

Sandea for PRE Weed Control common cocklebur wild radish pigweeds common ragweed common lambsquarters yellow nutsedge - suppression purple nutsedge - suppression 2 to 3 weeks residual weed control

Non-treated Control Sandea (0.5 oz/A) PRE W1-00. Halosulfuron study with Ken Lewis in Cordele.

Sandea PRE No herbicide

Sandea for POST Weed Control 1-3 inch 1-9 inch passionflower cocklebur redroot pigweed ragweed pokeweed velvetleaf yellow and purple nutsedge – heavy infestations may require sequential applications 2 to 3 weeks residual weed control

Curbit (Sonalan) 1.Apply PRE to seeded or row middle 2.Do not apply prior to transplanting bareground 3.Do not apply under mulch

Swelling From Curbit

Over mulch, washed offUnder mulch

Amount of Curbit remaining on plastic mulch. TyTy GA, percent days Grey

Curbit 1.5 pt/A PRE Curbit 1.5 pt/A + Sinbar 2.5 oz Sinbar – Watermelon Only

Reflex 1. tomato and pepper in Jan 2. watermelon 2013/ squash 2013/2014 NOT CURRENTLY LABELED IN WATERMELON

Non-treatedCurbit + Reflex Watermelon Response to Reflex?

Curbit + Sinbar + Reflex broadcast over mulch

Cantaloupe Response to Reflex!

No ReflexReflex 1 pt/A applied 205 days before transplanting

Clethodim + COC, Cook Co Grass Control Herbicides

Percent large crabgrass control with various clethodim products and adjuvants. TyTy, GA b 30 c 99 a Select Max 12 oz Select 6 oz Select Max +NIS Select + NIS Select + COC 97 a 99 a Large Crabgrass 4 inches at time of application!

Dual interaction with mulch?

Mulched watermelon injury to Dual Magnum applied post-transplant on mulch. TyTy, d 16 c 40 b 8 oz 12 oz 50 a 24 oz 36 oz %

Metam (Vapam, others) 1. Best nutsedge option under mulch 2. Best pigweed option under mulch 3. No carryover 4. Costly

If renting land find out what herbicides used last year! Cadre, Staple, Strongarm are very bad news!!!!!!!!!!!!!!!

Don’t plow unless you have to!!!!!!!!!!

Developing Integrated Programs

If renting land find out what herbicides were used last year! Cadre, Staple, Strongarm are very bad news!!!!!!!!!!!!!!!

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