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MB Alternatives – Almost DONE!!!. Culpepper and Sumner University of Georgia Tifton Campus. Viable MB Fumigant Alternatives. MIDAS 3-WAY Paladin. Herbicides. MIDAS. Application procedure similar to MB MIDAS is a 50:50 or 98:2 mix with Pic Use rate similar to MB

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MB Alternatives – Almost DONE!!!

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Mb alternatives almost done

MB Alternatives – Almost DONE!!!

Culpepper and Sumner

University of Georgia

Tifton Campus


Viable mb fumigant alternatives

Viable MB Fumigant Alternatives

  • MIDAS

  • 3-WAY

  • Paladin

Herbicides


Midas

MIDAS

  • Application procedure similar to MB

  • MIDAS is a 50:50 or 98:2 mix with Pic

  • Use rate similar to MB

  • Reduce use rate 40% under VIF mulches.

Effective product but limited adoption because of economics.


Telone pic vapam

Telone/Pic/Vapam

  • Spring applications = 16 of 17 experiments over 4 years with greater than 93% nutsedge control

Ideal Placement

Vapam = 4 inches

Chloropicrin = 8 inches

Telone = 12 inches


Mb alternatives almost done

20 feet

136

25

feet

950

16 WAP

24 WAP

1550

1550

3440

Purple Nutsedge

Black LDPE Mulch

32 WAP

60 WAP


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Note moisture and compaction


Mb alternatives almost done

Telone II fb Pic fb Vapam

LDPE mulch

Telone II fb Pic

LDPE mulch

Telone II fb Vapam

LDPE mulch

V4-05, 60 DAT


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Percent purple nutsedge control by Pic Chlor 60 @ 21G as impacted by mulch. Ponder, Spring 2007-2008.

82 a

55 b

38 d

LDPE

1.25 mil

LDPE

1.75 mil

Blockade

1.25 mil


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Percent Purple Nutsedge Control by MB and 3-WAY at Pepper Harvest. Ponder, Spring 2008.

99

99

87

70

MB

3-WAY

Plots were 1 bed by 50 feet. Spring soil temp 60 F; Fall soil temp 93.


Paladin dmds pic

Paladin (DMDS + Pic)

  • Labeled …8 months from Nov 2009…..April or May I HOPE.

  • 79:21 mixture with chloropicrin

  • Same application procedures as MB

  • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.


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Percent yellow nutsedge control at harvest as impacted by Paladin rate. TyTy, GA 2008.*

100 a

99 a

98 a

98 a

60 G

50 G

40 G

30 G

Paladin Rate

Blockade mulch


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Percent Purple Nutsedge Control by Paladin at Pepper Harvest. Ponder, Spring 2008.

99

99

99

98

93

85

DMDS 40 G

DMDS 50 G

DMDS 60 G

Plots were 1 bed by 50 feet. Spring soil temp 60 F; Fall soil temp 93. Blockade mulch.


Mb alternatives almost done

Percent large crabgrass control at harvest as impacted by Paladin rate. TyTy, GA 2008.*

75 a

66 b

49 c

33 d

60 G

50 G

40 G

30 G

Paladin Rate


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Bell Pepper

(Plasticulture and Bareground)

Split application

PRE:

6-8 oz Dual Mag

2 to 3 lb Devrinol

Command

POST 1:

8-10 oz Dual Mag

POST 2:

Select Max as needed


Paladin dmds pic1

Paladin (DMDS + Pic)

  • Labeled ????

  • 79:21 mixture with chloropicrin

  • Same application procedures as MB

  • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.

  • Must use high barrier mulch


Must use mulch listed on paladin label

Must Use Mulch Listed on Paladin Label


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Paladin 50 G, Blockade

DMDS 70 G, LDPE


Paladin dmds pic2

Paladin (DMDS + Pic)

  • Labeled ????

  • 79:21 mixture with chloropicrin.

  • Same application procedures as MB.

  • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.

  • Must use high barrier mulch.

  • Smell is a serious issue and must be addressed.


Mitigating smell issues

Mitigating Smell Issues

1. Correct Mulch – Mulch options will be listed on label

2. Moisture must be ideal


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Water Content

(%/dry weight of soil)

6

7

9

10

Start Time = 9:00 AM

LDPE White Mulch


Mitigating smell issues1

Mitigating Smell Issues

  • 1. Correct Mulch – Mulch options will be listed on label

  • Moisture must be ideal

  • Compaction


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Distance from center of bolt to center of bolt on top link was either 27.5 or 28 inches


Mb alternatives almost done

LDPE 27.5”

LDPE 28”

15 % reduction due to increased bed compaction


Paladin dmds pic3

Paladin (DMDS + Pic)

  • Odor is number 1 concern

  • Plant back:

  • Spring up to at least 30 days in some envir

  • Fall likely around 21 days

  • 3. Cost is unknown?????????????


Future of mb alternative efforts

Future of MB Alternative Efforts

  • Get Paladin out with 4 or 5 growers in secluded areas this fall (15-25 acres) to determine if this is a viable alternative assuming product is economical.


Future of mb alternative efforts1

Future of MB Alternative Efforts

  • Get Paladin out with 4 or 5 growers in secluded areas this fall (15 acres or so) to determine if this is a viable alternative (assuming product is economical.

  • 2. Summer of 2010 will be last submission of methyl bromide CUE request (if Paladin use is sustainable and economical).


Future of mb alternative efforts2

Future of MB Alternative Efforts

  • Get Paladin out with 4 or 5 growers in secluded areas this fall (15 acres or so) to determine if this is a viable alternative (assuming product is economical.

  • 2. Summer of 2010 will be last submission of methyl bromide CUE request (if Paladin use is sustainable and economical).

  • 3. One year from today discuss results from Paladin efforts and one additional fumigant system in development.


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Herbicide Coated Mulch

No Fumigant, No Herbicide

BIG Film

No Fumigant, No Herbicide,

Blockade Film


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