2014 Tift County Melon Update Intercropping Herbicide update.

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

*Monoculture of each crop included for comparison.

Cantaloupe

Cotton SoybeanPeanut

30 days after transplant

Watermelon

Cotton SoybeanPeanut

30 days after transplant

Squash

Cotton SoybeanPeanut

30 days after transplant

Conclusions

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

5,575 lbs/A (a)

5,515 lbs/A (a)

5,530 lbs/A (a)

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

Soybean Yield

66 bu/A (a)

28 bu/A (b)

*Monoculture yield=68 bu/A (a)

59 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

Gramoxone

+ TreflanPlow

Treflan band after

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

Gramoxone+ Treflan

+ ReflexPlow

Treflan band after

cotton

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 MULCH50-70% 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

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

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

0

20

40

60

80

100

8 d 16 c

40 b

8 oz 12 oz

50 a

24 oz 36 oz

%

FOR WEED CONTROL

METAM SODIUM

(Vapam, others) STILL BEST

OPTION UNDER MULCH

Questions or Comments?