replacing methyl bromide in multiple crop plasticulture
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Replacing Methyl Bromide in Multiple Crop Plasticulture. Stanley Culpepper University of Georgia Tifton Campus. Complete pest control critical for 1 st crop when growing multiple crops!. Purple and Yellow Nutsedges: - PowerPoint PPT PresentationTRANSCRIPT
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Replacing Methyl Bromide in Multiple Crop Plasticulture
Stanley Culpepper
University of Georgia
Tifton Campus
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Complete pest control critical for 1st crop when growing multiple crops!
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Purple and Yellow Nutsedges:Most Troublesome Weeds of Cucurbits, Fruiting Vegetables, Cole Crops and Greens, and Other
Vegetables
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MB Alternatives Require a System
1. Fumigants
2. Mulches
3. Herbicides
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Potential MB Alternatives (Multiple crops)
1. MIDAS 50:50 or 98:2 (methyl iodide + pic)
2. DMDS 79:21 (dimethyl disulfide + pic.)
3. Telone II fb chloropicrin fb Vapam (3 WAY)
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Numerous Mulch Options
Relationship of the mulch cost and ability to reduce fumigant rate and cost
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DMDS 60 G, Blockade DMDS 70 G, LDPE
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Telone II fb Vapam
LDPE mulch
V4-05, 60 DAT
Telone II fb Pic
LDPE mulch
Telone II fb Pic fb Vapam
LDPE mulch
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Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2007.
0
20
40
60
80
100
3-WAY LDPE
3-WAY Blockade
Plots were 1 bed by 50 feet, evaluations are at pepper harvest.
93 a
99a
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Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2007.
0
20
40
60
80
100
3-WAY LDPE
3-WAY Blockade
3/4 rate LDPE
3/4 rate Blockade
Plots were 1 bed by 50 feet, evaluations are at pepper harvest.
93 a
99a
75b
82 b
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Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2007.
0
20
40
60
80
100
T2 + Pic LDPE
T2 + Pic Blockade
Plots were 1 bed by 50 feet, evaluations are at pepper harvest.
38 b
81 a
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Determine the Economics of the System
3-WAY LDPE ($885 per land acre)
VS
Telone + Pic High Barrier ($880 per land acre)
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Potential MB Alternatives (Multiple crops)
DMDS 79:21 (dimethyl disulfide + pic.) under high barrier mulch
VS
Telone II fb chloropicrin fb Vapam (3 WAY) under standard LDPE mulch
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Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2008.
0
20
40
60
80
100
DMDS 40 G VIF
DMDS 50 G VIF
DMDS 60 G VIF
MB 50:50 240 lb VIF
3-WAY LDPE
99a
Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 60 F.
99 a
99 a
99 a
99a
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Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Fall 2007.
0
10
20
30
40
50
60
70
80
90
100
DMDS 40 G VIF
DMDS 50 G VIF
DMDS 60 G VIF
MB 50:50 240 lb VIF
3-WAY LDPE
87 ab
98a93
ab85 b
70 c
Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 93 F.
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soil moisturesoil temperaturesoil compaction
PEST MANGEMENT DEPENDS ON
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Large Crabgrass Control by MB Alternative Systems. Ponder, Spring 2008.
0
10
20
30
40
50
60
70
80
90
100
DMDS 40 G VIF
DMDS 50 G VIF
DMDS 60 G VIF
MB 50:50 240 lb VIF
3-WAY
95 a89
b86b
63c
99a
Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 93 F.
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3-WAY
LDPE
DMDS + Pic
Blockade
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Livid Amaranth Control by MB Alternative Systems. LTF, Spring 2008.
0
10
20
30
40
50
60
70
80
90
100
DMDS 40 G VIF
DMDS 50 G VIF
DMDS 60 G VIF
MB 50:50 240 lb VIF
3-WAY
95 a
85 b75
b65c
95a
Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 93 F.
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Comparing MB Alternatives
1. Mulch - + -2. Smell - +
+3. Nutsedge + +/- +4. Annual grasses - + +5. Broadleaf weeds - + +6. Application Procedure + - +
DMDS 3-WAY MIDAS
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Metam Application with blades 4” apart applying metam 4” deep
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Comparing MB Alternatives
1. Mulch - + -2. Smell - +
+3. Nutsedge + +/- +4. Annual grasses - + +5. Broadleaf weeds - + +6. Application Procedure + - +7. Economics (cost/returns) ? + -
DMDS 3-WAY MIDAS
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Herbicides Available to Compliment the Fumigant Program for Tomato
1. Preplant: Gramoxone, Roundup, Aim, Goal
2. PRE: Dual Mag, Devrinol, Sandea,
3. POST: Sencor, Sandea, Matrix, Select, Poast
4. Directed: Sencor, Envoke
5. Row Middles: Gramoxone, Envoke, Sandea, Aim,
Chateau
6. POST Harvest: Gramoxone or Roundup + Aim
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0
10000
20000
30000
40000
50000
60000
2004 2005 2006 2007 2008
No fumigant
Yellow nutsedge plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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0
10000
20000
30000
40000
50000
60000
2004 2005 2006 2007 2008
No fumigant T2 fb Pic C35
Yellow nutsedge plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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0
10000
20000
30000
40000
50000
60000
2004 2005 2006 2007 2008
No fumigant MB,MI,3-WAY
Yellow nutsedge plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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0
2000
4000
6000
8000
10000
12000
14000
2004 2005 2006 2007 2008
No fumigant
Livid amaranth plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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0
2000
4000
6000
8000
10000
12000
14000
2004 2005 2006 2007 2008
No fumigant T2 fb Pic C35 MB,Vapam,3-WAY
Livid amaranth plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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Herbicides Available to Compliment the Fumigant Program for Tomato
1. Preplant: Gramoxone, Roundup, Aim, Goal
2. PRE: Dual Mag, Devrinol, Sandea,
3. POST: Sencor, Sandea, Matrix, Select, Poast
4. Directed: Sencor, Envoke
5. Row Middles: Gramoxone, Envoke, Sandea, Aim,
Chateau
6. POST Harvest: Gramoxone or Roundup + Aim
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0
2000
4000
6000
8000
10000
12000
14000
2004 2005 2006 2007 2008
No fumigant, No herbicide No fumigant, Dual Magnum
Livid amaranth plants/A after a spring pepper crop and fall cucumber crop.*
*Long term study with spring pepper and fall cucumber treated with same fumigant each year. Vapam at 25 GPA and Roundup applied between crops.
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Control weeds before and IMMEDIATELY after the crop is produced
*The goal is to eliminate seed or tuber
production….you are fighting the SEED BANK
When Producing Multiple Crops
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Cooperators
On Farm Cooperators
Coggins Farms
Lewis Taylor Farms
Southern Valley Produce
Application Help
Hendrix and Dail
John Mirusso
Industry
AmVac
Arysta
UPI
Dow Agro