Agrobase Canada
Signal F Registered until: December 31, 2021
NUFARM - Herbicide
31434

GENERAL INFORMATION
SIGNAL F Herbicide is a systemic, postemergence herbicide for the control of kochia, cleavers, wild oats, green foxtail, yellow foxtail, barnyard grass, volunteer oats, volunteer canary seed and suppression of wild buckwheat in wheat (spring and durum) in the Prairie Provinces and the Peace River Region of British Columbia. Thorough coverage of the plants is essential for consistent control. SIGNAL F Herbicide can be tank-mixed with 2,4-D and MCPA herbicides to provide a broader spectrum of weed control. Refer to the appropriate tank mix sections.

GENERAL USE PRECAUTIONS 
Sensitive Plants 
Do not apply SIGNAL F Herbicide directly to, or otherwise permit it to come in direct contact with susceptible crops or desirable plants including alfalfa, edible beans, canola, flowers and ornamentals, lentils, lettuce, peas, potatoes, radishes, soybeans, sugar beets, sunflowers, tomatoes or tobacco. 
Non-Target Sites 
Do not apply where proximity of susceptible crops or other desirable plants is likely to result in exposure to spray or spray drift. See the Environmental Hazards section of the label. 
Crop Rotation 
Fields previously treated with SIGNAL F Herbicide can be seeded the following year to barley, canola, flax, forage grasses, lentils, mustard, oats, peas, rye or wheat or fields can be summerfallowed.

Buffer Zones 
The buffer zones specified in the table below are required between the point of direct application and the closest downwind edge of sensitive terrestrial habitats (such as grasslands, forested areas, shelter belts, woodlots, hedgerows, 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.

Tank Mixtures 
In some cases, tank mixing a pest control product with another pest control product or a fertilizer can result in biological effects that could include, but are not limited to: reduced pest efficacy or increased host crop injury. The user should contact Nufarm Agriculture Inc. at 1-800-868-5444 for information before mixing any pesticide or fertilizer that is not specifically recommended on this label. The user assumes the risk of losses that result from the use of tank mixes that do not appear on this label or that are not specifically recommended by Nufarm Agriculture Inc. When a tank mixture is used, consult the labels of the tank mix partners and observe the largest (most restrictive) buffer zone of the products involved in the tank mixture. Refer to the tank mix partner herbicide label for further precautions, restrictions and use instructions. 

Spray Equipment Precaution 
Do not apply through any type of irrigation system. 
DO NOT APPLY BY AIR.

To Reduce Spray Drift: 
Use nozzles delivering higher volumes and coarser droplets.
Use low pressures (200 to 275 kPa).
Use 100 L/ha of spray solution.
Spray when the wind velocity is 15 km/h or less.
Spot treatments should only be applied with a calibrated boom to prevent over-application.

To Reduce Runoff from Treated Areas: 
To reduce runoff from treated areas into aquatic habitats, consider the characteristics and conditions of the site before treatment. Site characteristics and conditions that may lead to runoff include, but are not limited to: heavy rainfall, moderate to steep slope, bare soil, poorly draining soil (e.g. soils that are compacted, fine textured, or low in organic matter such as clay). Avoid application of this product when heavy rain is forecast. Contamination of aquatic areas as a result of runoff may be reduced by including a vegetative strip (buffer zone) between the treated area and the edge of the water body.

Equipment Clean-Up 
Equipment used to apply SIGNAL F Herbicide should not be used to apply other pesticides to sensitive crops without thorough cleaning. Contact your SIGNAL F Herbicide dealer for detailed equipment cleaning procedures.

DIRECTIONS FOR USE 

READ THE ENTIRE LABEL BEFORE USE. FAILURE TO FOLLOW LABEL INSTRUCTIONS MAY RESULT IN ERRATIC WEED CONTROL OR CROP DAMAGE. DO NOT APPLY TO CROPS UNDERSEEDED WITH LEGUMES.

Crops Registered: Spring wheat, Durum wheat

SIGNAL F HERBICIDE ALONE
Apply SIGNAL F Herbicide at 0.5 L/ha with Nufarm Enhance at 0.25%v/v (0.25 L of Nufarm Enhance in 100 L water). 

APPLICATION DIRECTIONS 

Application Timing 
Apply to actively growing wheat from the 2-leaf crop growth stage up to and including just prior to the emergence of 4th tiller. Apply when weeds are actively growing. Best results are obtained from applications made to seedling weeds. Only weeds that have emerged at the time of treatment will be controlled.  Extreme growing conditions such as drought or near freezing temperature prior to, at and following time of application may reduce weed control and increase the risk of crop injury at all stages of growth. Foliage that is wet at the time of application may decrease control. SIGNAL F Herbicide applications are rainfast within 1 hour after application. Under conditions of low crop and high weed density, control may be reduced. 

Preharvest/Grazing Intervals (SIGNAL F Herbicide applied alone) 
Livestock may be grazed on treated crops 3 days following application.
Do not harvest the treated crop within 60 days after application.

RESISTANCE MANAGEMENT RECOMMENDATIONS 
For resistance management, please note that SIGNAL F Herbicide is a Group 1 and 4 herbicide. Any weed population may contain plants naturally resistant to SIGNAL F Herbicide and Group 1 and 4 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 SIGNAL F Herbicide or other Group 1 and 4 herbicides within a growing season (sequence) or among growing seasons 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. To delay resistance, the less resistance-prone partner should control the target weed(s) as effectively as the more resistance-prone partner.
Herbicide use should be based on an integrated weed management program that includes scouting, historical information related to herbicide use and crop rotation, and considers tillage (or other mechanical control methods), cultural (for example, higher crop seeding rates; precision fertilizer application method and timing to favour the crop and not the weeds), biological (weed-competitive crops or varieties) and other management practices.
Monitor weed populations after herbicide application for signs of resistance development (for example, only one weed species on the herbicide label not controlled). If resistance is suspected, prevent weed seed production in the affected area if possible by an alternative herbicide from a different group. Prevent movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment when moving between fields, and planting clean seed.
Have suspected resistant weed seeds tested by a qualified laboratory to confirm resistance and identify alternative herbicide options.
Contact your local extension specialist or certified crop advisors for any additional pesticide resistance-management and/or integrated weed-management recommendations for specific crops and weed biotypes.
For further information and to report suspected resistance, contact Nufarm Agriculture Inc. at 1-800-868-5444 or at www.nufarm.ca.

NOTICE TO USER 
This pest control product is to be used only in accordance with the directions on the label. It is an offence under the PEST CONTROL PRODUCTS ACT to use this product in a way that is inconsistent with the directions on the label. The user assumes the risk to persons or property that arises from any such use of this product.

Effective
Crops
Spring wheat
BBCH
0 - 0
Registred norm
0.5 - 0.5
Preharvest Interval
60
Effective
Annual canarygrass
Annual canarygrass
Phalaris canariensis ★★★
Barnyard grass
Barnyard grass
Echinochloa crus galli ★★★
Cleavers
Cleavers
Galium aparine ★★★
Green foxtail
Green foxtail
Setaria viridis ★★★
Kochia
Kochia
Bassia scoparia ★★★
Volunteer flax
Volunteer flax
Linum usitatissimum ★★★
Volunteer (tame) oats
Volunteer (tame) oats
Avena sativa ★★★
Wild oat
Wild oat
Avena fatua ★★★
Yellow foxtail
Yellow foxtail
Setaria lutescens ★★★
Black bindweed
Black bindweed
Fallopia convolvulus ★★
Ball mustard
Ball mustard
Neslia paniculata
Black mustard
Black mustard
Brassica nigra
Blue lettuce
Blue lettuce
Lactuca tatarica
Burr ragweed
Burr ragweed
Ambrosia confertiflora
Calepina
Calepina
Calepina irregularis
Canada thistle
Canada thistle
Cirsium arvense
Cocklebur
Cocklebur
Xanthium strumarium
Common burdock
Common burdock
Arctium minus
Common dandelion
Common dandelion
Taraxacum officinale
Common hempnettle
Common hempnettle
Galeopsis tetrahit
Common ragweed
Common ragweed
Ambrosia artemisiifolia
Docks
Docks
Rumex acetosella
Dog mustard
Dog mustard
Erucastrum gallicum
European bindweed
European bindweed
Convolvulus arvensis
European stickseed
European stickseed
Lappula squarrosa
False ragweed
False ragweed
Franseria acanthicarpa
Fat hen
Fat hen
Chenopodium album
Field horsetail
Field horsetail
Equisetum arvense
Field mustard
Field mustard
Brassica campestris
Field penny-cress
Field penny-cress
Thlaspi arvense
Flixweed
Flixweed
Descurainia sophia
Giant ragweed
Giant ragweed
Ambrosia trifida
Goat’s-beard
Goat’s-beard
Aruncus dioicus
Green smartweed
Green smartweed
Polygonum scabrum
Grindelia
Grindelia
Grindelia camporum
Hairy galinsoga
Hairy galinsoga
Galinsoga quadriradiata
Hare's ear mustard
Hare's ear mustard
Conringia orientalis
Hedge bindweed
Hedge bindweed
Calystegia sepium
Hedge mustard
Hedge mustard
Sisymbrium officinale
Hexham scent
Hexham scent
Melilotus indicus
Hoary cress
Hoary cress
Lepidium draba
Indian hedge mustard
Indian hedge mustard
Sisymbrium orientale
Leafy spurge
Leafy spurge
Euphorbia esula
Oak-leaved goosefoot
Oak-leaved goosefoot
Chenopodium glaucum
Pepper grass
Pepper grass
Panicum whitei
Perennial sow thistle
Perennial sow thistle
Sonchus arvensis
Plantain
Plantain
Musa paradisiaca
Prickly lettuce
Prickly lettuce
Lactuca serriola
Redroot pigweed
Redroot pigweed
Amaranthus retroflexus
Redstem filaree
Redstem filaree
Erodium cicutarium
Russian thistle
Russian thistle
Salsola kali
Shepherd's purse
Shepherd's purse
Capsella bursa-pastoris
Smartweed
Smartweed
Polygonum hydropiper
Smooth sowthistle
Smooth sowthistle
Sonchus oleraceus
Spotted ladysthumb
Spotted ladysthumb
Polygonum persicaria
Sunflowers
Sunflowers
Helianthus
Tansy mustard
Tansy mustard
Descurainia pinnata
Tartary buckwheat
Tartary buckwheat
Fagopyrum tataricum
Tumble mustard
Tumble mustard
Sisymbrium altissimum
Vetches
Vetches
Vicia
Volunteer canola
Volunteer canola
Brassica napus
White mustard
White mustard
Sinapis alba
Wild mustard, charlock
Wild mustard, charlock
Sinapis arvensis
Wild radish
Wild radish
Raphanus raphanistrum
Wormseed mustard
Wormseed mustard
Erysimum cheiranthoides