replacing methyl bromide in multiple crop plasticulture
DESCRIPTION
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
Replacing Methyl Bromide in Multiple Crop Plasticulture
Stanley Culpepper
University of Georgia
Tifton Campus
Complete pest control critical for 1st crop when growing multiple crops!
Purple and Yellow Nutsedges:Most Troublesome Weeds of Cucurbits, Fruiting Vegetables, Cole Crops and Greens, and Other
Vegetables
MB Alternatives Require a System
1. Fumigants
2. Mulches
3. Herbicides
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)
Numerous Mulch Options
Relationship of the mulch cost and ability to reduce fumigant rate and cost
DMDS 60 G, Blockade DMDS 70 G, LDPE
Telone II fb Vapam
LDPE mulch
V4-05, 60 DAT
Telone II fb Pic
LDPE mulch
Telone II fb Pic fb Vapam
LDPE mulch
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
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
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
Determine the Economics of the System
3-WAY LDPE ($885 per land acre)
VS
Telone + Pic High Barrier ($880 per land acre)
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
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
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.
soil moisturesoil temperaturesoil compaction
PEST MANGEMENT DEPENDS ON
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.
3-WAY
LDPE
DMDS + Pic
Blockade
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.
Comparing MB Alternatives
1. Mulch - + -2. Smell - +
+3. Nutsedge + +/- +4. Annual grasses - + +5. Broadleaf weeds - + +6. Application Procedure + - +
DMDS 3-WAY MIDAS
Metam Application with blades 4” apart applying metam 4” deep
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
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
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.
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.
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.
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.
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.
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
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.
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
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