2014 Tift County Melon Update Intercropping Herbicide update - - PowerPoint PPT Presentation

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2014 Tift County Melon Update Intercropping Herbicide update - - PowerPoint PPT Presentation

Apr 03, 2024 275 likes •659 views

2014 Tift County Melon Update Intercropping Herbicide update Cantaloupe-Cotton Intercropping Cantaloupe Cotton Yield No reduction 0-12% reduction Crop value 17% increase >1,000 increase Watermelon-Cotton Intercropping Watermelon

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2014 Tift County Melon Update

Intercropping Herbicide update

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Cantaloupe-Cotton Intercropping

Cantaloupe Cotton Yield No reduction 0-12% reduction Crop value 17% increase >1,000 increase

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Watermelon-Cotton Intercropping

Watermelon Cotton Yield No reduction 12-18% reduction Crop Value 14% increase >1,000 increase

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Intercropping Systems*

Cantaloupe Cotton Peanut Soybean Watermelon Cotton Peanut Soybean Squash Cotton Peanut Soybean

*Monoculture of each crop included for comparison.

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Cantaloupe

Cotton Soybean Peanut

30 days after transplant

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Watermelon

Cotton Soybean Peanut

30 days after transplant

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Squash

Cotton Soybean Peanut

30 days after transplant

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Conclusions

Cucurbit crop

Watermelon Cantaloupe Squash

Row crop

Soybean Soybean Soybean Peanut Peanut Peanut Cotton Cotton Cotton

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Cotton Yield

1,135 lbs/A (a) 1,325 lbs/A (a) 1,215 lbs/A (a) *Monoculture yield=1,125 lbs/A (a)

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Peanut Yield

5,575 lbs/A (a) 5,515 lbs/A (a) 5,530 lbs/A (a) *Monoculture yield=5,155 lbs/A (a) .

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Soybean Yield

66 bu/A (a) 28 bu/A (b) *Monoculture yield=68 bu/A (a) 59 bu/A (a)

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Intercropping Cucurbits with Cotton

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Cotton Tolerance to Sonalan/Curbit

good tolerance BUT no label for cotton

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TREFLAN 4-D LABEL (GA ONLY) – Intercropping Cucurbits with Cotton

  • 1. Apply with burndown over mulch (prior to

punching holes).

  • 2. A single 0.5” rain/irrigation to wash mulch and

to active herbicide within 24 hr.

  • 3. Apply 1 to 2 pts depending on soil type.
  • 4. Wait at least 1 d prior to transplanting.
  • 5. Can also apply PRE to cotton (directed to

melons)……don’t exceed max use rate.

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Treflan HFP

Labeled for cotton. Melon label: Apply Treflan as direct spray to soil between rows after 3 to 4 leaves. (Rates from 1-2 pts)

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Treflan HFP

Gramoxone + Treflan Plow Treflan band after cotton Wash mulch

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Sandea

Watermelon: row middle Cantaloupe: topical No cotton label!!!!

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Sandea

*Consistent cotton stunting 10-20%, if planting without tillage in 14 to 21 days. *Spot spray for nutsedge? *Cultivation (tillage will reduce injury).

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Sinbar

Watermelon: great tool Cantaloupe: bad idea Cotton: disaster

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Sinbar Injury

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Reflex

Watermelon Preplant: great tool Cantaloupe Anytime: bad idea Cotton Preplant: great tool

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2014 New Labels-Reflex

Watermelon Bareground seed: 10 to 12 oz/A PRE Bareground transplant:

  • A. Prepare land;
  • B. Apply 10-12 oz Reflex
  • C. Irrigate
  • D. Punch hole and transplant

Not Labeled

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2014 New Labels-Reflex

Watermelon Mulch Seed or transplant:

  • A. May apply over mulch; must wash ½ inch;

10-12 oz/A Not Labeled

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Treflan HFP – Watermelon Intercrop Gramoxone + Treflan + Reflex Plow Treflan band after cotton

Wash mulch

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2014 New Labels-Reflex

Watermelon Mulch Seed or transplant:

  • A. May apply over mulch; must wash ½ inch;

10-12 oz/A

  • B. Can apply under mulch if not disturbed

when laying mulch at 10 to 12 oz/A.

  • C. Row middles 16 oz/A

Not Labeled

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REFLEX UNDER MULCH

50-70% yellow nutsedge under mulch control, excellent Pigweed control

Spray after laying drip tape

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REFLEX PREPLANT ON YELLOW NUTSEDGE

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Cantaloupe Response to Reflex?

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No Reflex Reflex 1 pt/A applied 205 days before transplanting

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Watermelon and Cantaloupe

  • Row middle bareground: 8 to 12 oz/A
  • Row middle mulch: 12 to 16 oz/A
  • Do not apply topically
  • Do not broadcast over mulch

2014 New Labels-Dual Magnum

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Mulched watermelon injury to Dual Magnum applied post-transplant on mulch. TyTy, 2010.

20 40 60 80 100

8 d 16 c 40 b 8 oz 12 oz 50 a 24 oz 36 oz

%

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FOR WEED CONTROL METAM SODIUM (Vapam, others) STILL BEST OPTION UNDER MULCH

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Questions or Comments?