2011: County Melon Update

Intercropping

Reflex

Sinbar

Grass control

Spartan

Dual Magnum

Intercropping cantaloupe and cotton

Curbit:

Command:

Alanap:

Sandea:

Select/Poast:

Cotton tolerance data to Sonalan

NO DATA

There is a label for ethalfluralin in Iran

No OP OP in-furrow

Di-Syston, Phorate, Thimate

Command/OP insecticide

interaction on cotton

Percent cotton injury from Sandea PPI

0

20

40

60

80

100

15 a8

b

0. 08 oz 0.16 oz 0.33 oz 0.5 oz

1 bc

5 bc

Sandea label = 4 mo plant back to cotton.

Sandea half life = worst case 34 d, GA summer data = 7 d

Much more work needed!

Alanap Should Be Gone

Chemtura voluntarily canceling registration

Production was stopped Oct. 2007

50,000 gal inventory

2.5 years of inventory if normal use continues

Shelf life is about 3 years

Intercropping cantaloupe and cotton

Curbit: probably ok (need label)

Command: no

Alanap: no

Sandea: more data (need label)

Select/Poast: yes

Similar to cantaloupe except

Sinbar = NO

Intercropping watermelon and cotton

Reflex

1. tomato and pepper very soon

2. watermelon 2012/2013

3. squash 2012/2013

4. cantaloupe 2013 MAYBE?

Percent watermelon injury from Reflex.

Bareground System.

0

5

10

15

20

25

30

Loc 1, 2002

Loc 2, 2003

Loc 3, 2003

Loc 4, 2004

Loc 5, 2006

Loc 6, 2007

Loc 7, 2009

Loc 8, 2010

Reflex pre-transplant applied 16 oz/A.

Non-treated Curbit + Reflex

Watermelon Response to Reflex?

Curbit + Sinbar + Reflex

Percent watermelon injury from Reflex.

Mulched System.

0

20

Loc 1, 2003

Loc 2, 2006

Loc 3, 2007

Loc 4, 2009

Loc 5, 2010

Reflex applied 16 oz/A over mulch. Half inch irrigation prior to transplant.

Cantaloupe Response to Reflex!

Cantaloupe Response to Reflex?

Applied over mulch and washed from mulch prior to transplant

Applied to soil followed by transplanting

Curbit 1.5 pt/A PRE Curbit 1.5 pt/A + Sinbar 2.5 oz

Sinbar – Watermelon Only

Sinbar Label

“Do not replant treated areas to any crop within 2 years after last application as injury to the subsequent crop(s) may result.”

Carryover from Reflex applied under mulch. Crops planted 6 months later. 2007

0

20

40

60

80

100

Seeded cucumber Transplant cucumber Seeded collard

Transplant collard Transplant cabbage Transplant broccoli

Sweet corn

% in

jury

Clethodim + COC, Cook Co. 2009

Grass Control Herbicides

Percent large crabgrass control with various clethodim products and adjuvants. TyTy, GA 2009.

0

20

40

60

80

100

75 b

30 c

99 a

Select Max

12 oz

Select

6 ozSelect Max

+NISSelect + NIS

Select + COC

97 a

99 a

Large Crabgrass 4 inches at time of application!

Spartan ( 8 oz) Carryover

Label: 12 months to watermelon and cantaloupe

Data: Experiment applied 2X rate and then planted watermelon 10 months later = 18% injury max with no crop loss

Bareground melon injury to Dual Magnum applied pre-transplant or post-transplant. TyTy, 2010.

0

20

40

60

80

100

45 a

17 b 15 a

PRE

Dual Magnum 12 oz/A

POST

10 b

PRE POST

cantaloupe watermelon

%

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

Dual Magnum 12 oz/A

12 oz

50 a

24 oz 36 oz

watermelon

%

Dual interaction with mulch?

FMP