Canada

Gesagard 480SC

registration_expired
SYNGENTA - herbicide
24771

Solution Concentrate for weed control in carrots, peas, celery, leeks and celeriac.

GENERAL INFORMATION
GESAGARD 480SC herbicide is a liquid herbicide designed for application with a sprayer. When used in accordance with directions, most annual broad-leaved weeds and annual grasses, including lamb's-quarters, redroot pigweed, wild mustard, purslane, lady's-thumb, corn spurry, hemp-nettle, common chickweed, eastern black nightshade and green foxtail are controlled. GESAGARD 480SC herbicide works by both contact and root action and has a residual effect for 6 to 8 weeks. Best results are obtained when application is made to moist soil.
Do not use GESAGARD 480SC herbicide on very cloddy soils as weed control may be poor. Established perennial weeds, such as quackgrass, Canada thistle and milkweed, are not controlled by GESAGARD 480SC herbicide.
GESAGARD 480SC herbicide is non-corrosive.
Triazine Tolerant Weeds: Some naturally occurring triazine tolerant populations of the above listed weeds may not be controlled by GESAGARD 480SC herbicide alone. These tolerant weed populations are able to survive a use rate higher than that required to control susceptible weed populations. For information on how to control these triazine tolerant weed populations, consult your local agricultural authority.
DO NOT APPLY BY AIR.

DIRECTIONS FOR USE
CARROTS: Prepare a firm, level seedbed free from large air spaces. Apply GESAGARD 480SC herbicide soon after planting and before carrots emerge.
RATES TO USE: Sandy soils 3.75 L/ha; Loam soils 4.58 L/ha; Muck soils 7.08 L/ha.
Cultivation will not normally be required for at least 6 weeks, and should not be carried out before 4 weeks unless necessary for weed control. Do not apply GESAGARD 480SC herbicide at or near the time of emergence of the carrots.
Make only one application of GESAGARD 480SC herbicide per season. Allow a minimum of 85 days between application and harvest of the carrots.
CELERY (TRANSPLANTED CROP): Apply 3.75 L to 4.58 L of GESAGARD 480SC herbicide per hectare as an overall spray after the celery transplants are well established (at least 21 days). The treatment may be pre-emergence or early post-emergence to the weeds, but must be applied before weeds are 5 cm high.
Make only one application of GESAGARD 480SC herbicide per season. Allow a minimum of 54 days between application and harvest of the celery.
PEAS (FRESH, PROCESSING AND DRY): Apply 3.75 L to 4.58 L of GESAGARD 480SC herbicide per hectare soon after planting but before emergence of the peas. If the soil is dry and rainfall not expected, light incorporation by harrowing will usually improve results. Use lower rate on sandy soils.
Make only one application of GESAGARD 480SC herbicide per season. Allow minimum of 55 days between application and harvest of the peas.

ROTATIONAL CROP RESTRICTIONS
A 3-month plantback interval is required for small grains, bulb vegetables, leafy vegetables (except Brassica vegetables) and legume vegetables (succulent or dried); an 8-month plantback interval is required for root and tuber vegetables and a 12-month plantback interval is required for all other crops.

BUFFER ZONES
The buffer zones specified in the table below are required between the downwind point of direct application and the closest edge of sensitive terrestrial habitats (such as grasslands, forested areas, shelter belts, woodlots, hedgerows, pastures, rangelands, riparian areas and shrublands), sensitive freshwater habitats (such as lakes, rivers, sloughs, ponds, prairie potholes, creeks, marshes, streams, reservoirs, and wetlands) and estuarine/marine habitats.

Method of application – field sprayer (1).
Crop: Carrots and Leeks, Celery and Celeriac, Peas.
Buffer zones (metres) Required for the Protection of: Freshwater Habitat of Depths (less than 1 m / greater than 1 m), Estuarine / Marine Habitats of Depths (less than 1 m / greater than 1 m), Terrestrial Habitat.
Carrots and Leeks near Freshwater Habitat of Depths Less than 1 m – 25
Carrots and Leeks near Freshwater Habitat of Depths Greater than 1 m – 10
Carrots and Leeks near Estuarine / Marine Habitats of Depths Less than 1 m – 4
Carrots and Leeks near Estuarine / Marine Habitats of Depths Greater than 1 m – 2
Carrots and Leeks near Terrestrial Habitat – 25
Celery and Celeriac near Freshwater Habitat of Depths Less than 1 m – 30
Celery and Celeriac near Freshwater Habitat of Depths Greater than 1 m – 15
Celery and Celeriac near Estuarine / Marine Habitats of Depths Less than 1 m – 5
Celery and Celeriac near Estuarine / Marine Habitats of Depths Greater than 1 m – 3
Celery and Celeriac near Terrestrial Habitat – 30
Peas near Freshwater Habitat of Depths Less than 1 m – 15
Peas and Celeriac near Freshwater Habitat of Depths Greater than 1 m – 5
Peas near Estuarine / Marine Habitats of Depths Less than 1 m – 3
Peas near Estuarine / Marine Habitats of Depths Greater than 1 m – 1
Peas near Terrestrial Habitat – 20
(1) For field sprayer application, buffer zones can be reduced with the use of drift reducing spray shields. When using a spray boom fitted with a full shield (shroud, curtain) that extends to the canopy, the labeled buffer zone can be reduced by 70%. When using a spray boom where individual nozzles are fitted with cone-shaped shields that are no more than 30 cm above the canopy, the labeled buffer zones can be reduced by 30%.

SPRAYING INSTRUCTIONS:
1. Wash out sprayer, boom and nozzles to ensure that no trace of previous chemical remains.
2. Ensure that nozzle tips are clean and of correct size. Use nozzle screens not finer than 50 mesh.
3. Calibrate sprayer.
4. Apply in 200 to 1000 L of water per hectare. Spray at pressure of 200 to 300 kPa.
5. Fill tank with one-half of the required amount of water.
6. Add the required amount of GESAGARD 480SC herbicide (see Directions for Use above). Top up with the required amount of water and mix well by agitating.
7. Ensure that spray boom is set at the proper height to give good spray coverage.
8. Commence spraying, being careful to maintain correct and uniform spray pressure and tractor speed. It is important to avoid overdosing on headlands and when commencing or stopping spraying.
Field sprayer application: DO NOT apply during periods of dead calm. Avoid application of this product when winds are gusty. DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE) medium classification. Boom height must be 60 cm or less above the crop or ground.
Do not contaminate domestic or irrigation water supplies, lakes, streams and ponds. DO NOT apply this product directly to freshwater habitats (such as lakes, rivers, sloughs, ponds, prairie potholes, creeks, marshes, streams, reservoirs and wetlands) or estuarine/marine habitats.
WARNING:
Fields treated with GESAGARD 480SC herbicide may be replanted only with the crops on this label, if required, provided the soil is thoroughly reworked. A fall cover crop of rye or oats may be sown on the treated land in the same season. Do not plant any other crop on the treated land in the same season.

NOTICE TO USER:
The DIRECTIONS FOR USE for this product for the uses described below were developed by persons other than Syngenta Canada Inc. and accepted for registration by Health Canada under the User Requested Minor Use Label Expansion program. Syngenta Canada Inc. itself makes no representation or warranty with respect to performance (efficacy) and/or crop tolerance (phytotoxicity) claims for this product when used on the crops listed below.
Accordingly, the User assumes all liability arising, and agrees to hold Syngenta Canada Inc. harmless from any claims based on efficacy and/or phytotoxicity in connection with the uses described below.

DIRECTIONS FOR USE:
LEEKS: Apply GESAGARD 480SC herbicide as a split application to leeks in either mineral or organic soils. Make the first application to well established transplanted leeks that have produced one new fully expanded leaf. Make a second application 10 days later. Make a maximum of two applications per year. Apply 3.75L/ha of GESAGARD 480SC herbicide at each application timing. Temporary injury can occur to the lower leaves in some cultivars.
CELERIAC (TRANSPLANTED CROP): Apply 3.75 L to 4.58 L of GESAGARD 480SC herbicide per hectare as an overall spray after the celeriac transplants are well established (at least 21 days). Always use the lower rate for sandy soils. Apply in a spray volume of 200 – 1000 L water/ha. Apply by ground application only. DO NOT apply by air. The treatment may be pre-emergence or early post-emergence to the weeds, but must be applied before weeds are 5 cm high.
Make only one application of GESAGARD 480SC herbicide per season. Allow a minimum of 60 days between application and harvest of the celeriac. Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 6 days.

Resistance-Management Recommendations
For resistance management, GESAGARD Herbicide is a Group 5 herbicide. Any weed population may contain or develop plants naturally resistant to GESAGARD Herbicide and other Group 5 herbicides. The resistant biotypes may dominate the weed population if these herbicides are used repeatedly in the same field. Other resistance mechanisms that are not linked to site of action, but specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriate resistance-management strategies should be followed.

To delay herbicide resistance:
Where possible, rotate the use of GESAGARD Herbicide or other Group 5 herbicides with different herbicide groups that control the same weeds in a field.
Use tank mixtures with herbicides from a different group when such use is permitted.
Herbicide use should be based on an IPM program that includes scouting, historical information related to herbicide use and crop rotation, and considers tillage (or other mechanical), cultural, biological and other chemical control practices.
Monitor treated weed populations for resistance development.
Prevent movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment and planting clean seed.

Effective
Crops
Carrots
BBCH
0 - 0
Registred norm
3.75 - 7.08
Preharvest Interval
-
Crops
Peas
BBCH
0 - 0
Registred norm
3.75 - 4.58
Preharvest Interval
-
Crops
Celery
BBCH
0 - 0
Registred norm
3.75 - 4.58
Preharvest Interval
-
Crops
Leeks
BBCH
0 - 0
Registred norm
3.75 - 3.75
Preharvest Interval
-