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9. Table 1 Asparagus Weed Control
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Table 1 Asparagus Weed Control
This section was updated - 06 July 2021
Product |
Rate |
PHI* |
Comments |
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Seed-bed Asparagus |
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Venture L
(fluazifop-P-butyl)
Group 1 |
0.8 to 2.0 L/ha (320 to 800 mL/acre) Apply in 50 to 200 L/ha (20 to 80 L/acre) of water at 200 to 300 kPa |
N/A |
|
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Sandea
(halosulfuron)
Group 2 |
35 to 105 g/ha (14.2 to 42.5 g/acre) Apply in 140 L/ha (57 L/acre) |
N/A |
|
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Sinbar
(80% terbacil)
Group 5 |
375 g/ha (152 g/acre) Apply in at least 200 L/ha (80 L/acre) of water |
N/A |
|
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Lorox L
(linuron)
Group 7
PLUS:
Gramoxone
(paraquat)
Note: no longer available.
|
2.08 to 4.17 L/ha (0.84 to 1.69 L/acre)
PLUS:
2.5 L/ha (1.0 L/acre)
|
N/A |
|
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Ignite 15 SN
(glufosinate ammonium)
Group 10 |
2.7 to 5.0 L/ha (1.1 to 2.0 L/acre) Apply in 110 to 330 L water/ha (45 to 135 L/acre) at 275 to 310 kPa |
N/A |
|
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Guardsman/ Agricultural Weedkiller
No. 1 (mineral spirits)
|
500 L/ha (200 L/acre) |
N/A |
|
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1st Year Crowns and New Plantings |
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Sandea
(halosulfuron)
Group 2 |
35 to 105 g/ha (14.2 to 42.5 g/acre)
Apply in 140 L/ha (57 L/acre) of water |
1 |
|
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Devrinol 50-DF(napropamide) |
4.5 to 9.0 kg/ha (1.8 to 3.6 kg/acre) | N/A |
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Devrinol 2-XT(napropamide) |
9.38 to 18.75 L/ha (3.80 to 7.60 L/acre) | ||||||||||||||
2nd Year and Established Plantings Before Spear Emergence or After Last Cutting |
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Sandea
(halosulfuron)
Group 2 |
35 to 105 g/ha (14.2 to 42.5 g/acre)
Apply in 140 L/ha (57 L/acre) |
1 |
|
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Bonanza 480
(trifluralin)
Group 3 |
2.1 to 4.2 L/ha (0.8 to 1.7 L/acre) Apply in at least 100 L/ha (40 L/acre) water |
N/A |
|
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MCPA Amine 500
(MCPA)
Group 4 |
3.75 L/ha (1.5 L/acre) Apply in 50 to 200 L/ha (20 to 80 L/acre) of water at 200 to 350 kPa |
N/A |
|
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Sencor 75 DF
(metribuzin)
|
1.5 kg/ha (0.6 kg/acre) Apply in 100 to 300 L/ha (40 to 120 L/acre) of water at 150 to 275 kPa |
14 |
|
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Sencor Solupak 75 DF
(metribuzin)
Group 5 |
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Simazine 480
(simazine)
Group 5 |
4.7 to 7 L/ha (1.9 to 2.8 L/acre) Apply in 300 L/ha (120 L/acre) of water. |
7 |
|
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Princep Nine-T
(simazine)
Group 5 |
2.5 to 3.75 kg/ha (1.0 to 1.5 kg/acre) Apply in 300 L/ha (120 L/acre) of water at 200 to 300 kPa. |
7 |
|
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Sinbar
(terbacil)
Group 5 |
375 g/ha (152 g/acre) Apply in at least 200 L/ha (80L/acre) of water |
5 |
|
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Linuron 400L(linuron) Note: no longer available. Registration expires December 2019 |
4.25 to 5.5 L/ha (1.7 to 2.2 L/acre) | N/A |
|
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Lorox L
(linuron)
Group 7 |
3.4 to 4.5 L/ha (1.4 to 1.8 L/acre) Apply in 300 L/ha (120 L/acre) of water |
N/A |
|
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Karmex DF
(diuron)
Diurex 80 WDG
(diuron)
Group 7 |
1.1 to 2.25 kg/ha (0.4 to 0.9 kg/acre) in light sandy or low clay and organic matter soils OR 2.25 to 4.50 kg/ha (0.9 to 1.8 kg/acre) in soils high in clay or organic matter |
N/A |
|
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Roundup Ultra
(glyphosate)
|
0.83 to 1.67 L/ha (330 to 680 mL/acre) |
7 |
|
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Roundup WeatherMax
(glyphosate)
|
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Credit 45
(glyphosate)
|
1.0 to 2.0 L/ha (400 to 800 mL/acre) |
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Command 360 ME(clomazone) |
Coarse-textured soils: 1.55 L/ha (0.63 L/acre)
Medium-textured soils: 1.95 L/ha (0.80 L/acre)
Fine-textured soils: 2.35 L/ha (0.95 L/acre)
|
14 |
|
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Chateau
(flumioxazin)
Group 14 |
Coarse-textured soils: 280 g/ha (115 g/acre) Medium-textured soils: 420 g/ha (170 g/acre) |
N/A |
|
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Authority 480
(sulfentrazone)
Group 14
|
0.292 L/ha (0.118 L/acre) Apply in 100 to 400 L/ha (40 to 160 L/acre) of water at 175 kPa |
14 |
|
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Poast Ultra plus Merge at the following rates: | |||||||||||||||
|
40 |
|
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Devrinol 50 DF
(napropamide)
Group 15 Tank mixed with: Princep Nine-T
(simazine)
Group 5 |
9.0 to 13.4 kg/ha (3.6 to 5.4 kg/acre) |
6 |
|
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Devrinol 2-XT
(napropamide)
Group 15 Tank mixed with: Princep Nine-T
(simazine)
Group 5 |
18.75 to 27.92 L/ha (7.59 to 11.30 L/acre) Plus 1.5 to 2.75 kg/ha (0.6 to 1.1 kg/acre) |
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Dual II Magnum
(S-metachlor)
Group 15 |
1.55 to 1.75 L/ha (0.65 to 0.7 L/acre) Apply in at least 150 L/ha (60L/acre) of water at 200 to 300 kPa |
16 |
|
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Gramoxone
(paraquat)
Group 22
Note: Registration expires December 31, 2018.
|
2.75 to 5.5 L/ha (1.1 to 2.2 L/acre) Apply in 300 to 1100 L/ha (120 to 445 L/acre) of water |
N/A |
|
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Callisto(mesotrione) Group 27 |
300 mL/ha (120 mL/acre) Apply in 100 to 200 L/ha (40 to 80 L/acre) of water at 206 to 300 kPa |
N/A |
|
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Note: for dryland asparagus growers: Residual herbicides such as linuron and simazine require irrigation or rain within 4 to 7 days of treatment to activate them. | |||||||||||||||
After Last Cutting |
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Excel Super(fenoxaprop-p-ethyl) |
670 mL/ha (270 mL/acre) Apply in at least 110 L/ha (45 L/acre) of water at 275 kPa |
N/A |
|
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Sandea(halosulfuron) |
35 to 105 g/ha (14.2 to 42.5 g/acre) Apply in 140 L/ha (57 L/acre) of water |
1 |
|
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Ignite 15 SN(glufosinate ammonium) |
2.7 to 5.0 L/ha (1.1 to 2.0 L/acre) Apply in 110 to 330 L/ha (45 to 135 L/acre) of water at 275 to 310 kPa. |
N/A |
|
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*PHI = Pre-harvest interval BUFFERS – Refer to product label for buffer requirements. See also Pesticide Regulations and Safety section of this guide. PESTICIDE GROUP DETAILS – see Pesticide Toxicity Table of this guide. |
Viewing Section 9 of 11
9. Table 1 Asparagus Weed Control