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

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

Cotton Cantaloupe Peanut Soybean Intercropping Systems* Cotton Watermelon Peanut Soybean Cotton Squash Peanut Soybean *Monoculture of each crop included for comparison.

Cantaloupe Cotton Peanut Soybean 30 days after transplant

Watermelon Cotton Peanut Soybean 30 days after transplant

Squash Cotton Peanut Soybean 30 days after transplant

Conclusions Cucurbit crop Watermelon Cantaloupe Squash Soybean Soybean Soybean Row crop Peanut Peanut Peanut Cotton Cotton Cotton

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

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

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

Intercropping Cucurbits with Cotton

Cotton Tolerance to Sonalan/Curbit good tolerance BUT no label for cotton

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.

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)

Treflan HFP Treflan Gramoxone Plow band after + Treflan cotton Wash mulch

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

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

Sinbar Watermelon: great tool Cantaloupe: bad idea Cotton: disaster

Sinbar Injury

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

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

2014 New Labels-Reflex Watermelon Mulch Seed or transplant: A. May apply over mulch; must wash ½ inch; 10-12 oz/A Not Labeled

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

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

REFLEX UNDER MULCH 50-70% yellow nutsedge under mulch control, excellent Pigweed control Spray after laying drip tape

REFLEX PREPLANT ON YELLOW NUTSEDGE

Cantaloupe Response to Reflex?

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

2014 New Labels-Dual Magnum 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

Mulched watermelon injury to Dual Magnum applied post-transplant on mulch. TyTy, 2010. 100 80 60 % 50 a 40 40 b 20 16 c 8 d 0 8 oz 24 oz 12 oz 36 oz

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

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