Agrobase Canada
Rexade B Registration expired
Dow AgroSciences - Herbicide
32294

For the selective control of broadleaved weeds in wheat

DIRECTIONS FOR USE – GENERAL PRECAUTIONS
This pesticide is not registered for the control of pests in aquatic systems. DO NOT use to control aquatic pests.
DO NOT contaminate irrigation or drinking water suppliers or aquatic habitats by cleaning of equipment or disposal of wastes.

Sensitive Plants
Vegetables, flowers, grapes, fruit trees and other desirable plants are sensitive to 2,4-D even in minute quantities. Care should be taken to avoid spraying these types of plants or allowing spray mist to drift onto these plants during both their growing and dormant periods. At higher temperatures, vaporization may cause injury to susceptible plants growing nearby. This product may cause damage to lawns or pastures if applied before the grass is well established. In addition, most legumes may be damaged or killed.
If applying this product using a handheld sprayer, do not directly spray or allow the spray to drift onto ornamentals or gardens.
Do not spray roots of trees and ornamentals.
When tank mixing, refer to the labels of the tank mix partner and follow all precautions and directions for use.

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) coarse classification. Boom height must be 60 cm or less above the crop or ground.
Observe buffer zones specified under BUFFER ZONES

Aerial application
DO NOT apply during periods of dead calm. Avoid application of this product when winds are gusty. DO NOT apply when wind speed is greater than 16 km/h at flying height at the site of application. DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE) coarse classification. To reduce drift caused by turbulent wingtip vortices, the nozzle distribution along the spray boom length MUST NOT exceed 65% of the wing- or rotor-span.
Do not angle nozzles forward into the air-stream and do not increase the spray volume by increasing nozzle pressure. A spray thickening agent or drift retardant may be used with this product to air in reducing spray drift. Fixed and rotary-winged aerial applications to field crops should be made in a minimum of 30 L/ha total spray mixture.
Do not use human flaggers.
Avoid Spray Drift: Apply only when there is little or no hazard from spray drift. Small quantities of the spray, which may not be visible, may seriously injure susceptible crops and damage sensitive non-target habitat. A method must be used to detect air movement, lapse conditions or temperature inversions (stable air) such as the use of balloons or a continuous smoke column at or near the spray site or a smoke generator on the spray equipment. If the smoke develops into layers or indicates a potential for hazardous spray drift, do not spray. Apply only be fixed-wing or rotary aircraft equipment which has been functionally and operationally calibrated for the atmospheric conditions of the area and the application rates and conditions of this label.
Label rates, conditions and precautions are product specific. Read and understand the entire label before opening this product. Apply only at the rate recommended for aerial application on this label. Where no rate for aerial application appears for the specific use, this product cannot be applied by any type of aerial equipment. Ensure uniform application. To avoid streaked, uneven or overlapped application, use appropriate marking devices.
Sensitive aquatic habitats include: (1) All running (lotic) and standing (lentic) water bodies, including impoundments, beaver ponds and bog ponds, that appear on the map of GPS system; (2) Running (lotic) and standing (lentic) water bodies that do not appear on the map of GPS system but are visible from the air.
Observe buffer zones specified under BUFFER ZONES

Operator Precautions
Do not allow the pilot to mix chemicals to be loaded onto the aircraft. Loading of premixed chemicals with a closed system is permitted.
It is desirable that the pilot have communication capabilities at each treatment site at the time of application.
The field crew and the mixer/loaders must wear chemical resistant gloves, coveralls over a long sleevedshirt, long pants, socks plus shoes, and goggles or face shield during mixing/loading, cleanup and repair. Follow the more stringent label precautions in cases where the operator precautions exceed the generic label recommendations on the existing ground boom label.
All personnel on the job site must wash hands and face thoroughly before eating and drinking. Protective clothing, aircraft cockpit and vehicle cabs must be decontaminated regularly.

DIRECTIONS FOR USE - CROP USE
Ground Application
Apply 50 to 200 L of spray solution per hectare depending on the type of application equipment used. Use sufficient water for even distribution. Apply when the weeds are actively growing. Follow DIRECTIONS FOR USE – GENERAL PRECAUTIONS.

Aerial Application (including fixed and rotary wing aircraft)
Apply a minimum of 30 L of spray solution per hectare depending on the type of application system being used. Use boom pressures of 235 kPa or less. Avoid placing nozzles where spray will enter wing tip vortices. Follow DIRECTIONS FOR USE – GENERAL PRECAUTIONS.

To Prepare a Spray
Add half the required amount of water to the spray tank, then the Rexade B Herbicide with agitation, and finally the balance of the water with continued agitation.

WARNING: If preparing straight oil mixtures, do not let water get into the product or the finished mixture.

NOTE: This product in water forms an emulsion, not a solution, which tends to separate on standing. Agitate to prevent such separation and ensure uniformity of spray mixture.

Spot Treatment
For knapsack application of Rexade B Herbicide for spot treatment of weeds such as thistles, mix 0.17 L of product in 10 L of water. Wet all foliage thoroughly.

Selective Weed Control in Small Grains
Weeds differ in their susceptibility to Rexade B Herbicide and not all types can be controlled satisfactorily in crops. The amount of Rexade B Herbicide to use will depend upon the susceptibility and whether the crops will tolerate this amount. 

Wheat
Spray from the 3-leaf expanded stage (15 cm tall) to just before the flag-leaf (shot-blade) stage. To avoid crop injury, do not treat during boot and flowering stages. Winter wheat should be treated in early spring, as soon as weeds appear and before the crop reaches the shot-blade stage.

Pre-Harvest Interval
- Do not permit lactating dairy animals to graze fields within 7 days after application.
- Do not harvest forage or cut hay within 30 days after application.
- Withdraw meat animals from treated fields at least 3 days before slaughter.

Effective
Crops
Winter wheat
BBCH
0 - 0
Registred norm
0.51 - 1.28
Preharvest Interval
30
Crops
Spring wheat
BBCH
0 - 0
Registred norm
0.51 - 1.28
Preharvest Interval
30
Effective
Ball mustard
Ball mustard
Neslia paniculata ★★★
Black mustard
Black mustard
Brassica nigra ★★★
Burr ragweed
Burr ragweed
Ambrosia confertiflora ★★★
Calepina
Calepina
Calepina irregularis ★★★
Cocklebur
Cocklebur
Xanthium strumarium ★★★
Common burdock
Common burdock
Arctium minus ★★★
Common ragweed
Common ragweed
Ambrosia artemisiifolia ★★★
European stickseed
European stickseed
Lappula squarrosa ★★★
False ragweed
False ragweed
Franseria acanthicarpa ★★★
Fat hen
Fat hen
Chenopodium album ★★★
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 ★★★
Hare's ear mustard
Hare's ear mustard
Conringia orientalis ★★★
Hedge mustard
Hedge mustard
Sisymbrium officinale ★★★
Hexham scent
Hexham scent
Melilotus indicus ★★★
Indian hedge mustard
Indian hedge mustard
Sisymbrium orientale ★★★
Kochia
Kochia
Bassia scoparia ★★★
Plantain
Plantain
Musa paradisiaca ★★★
Prickly lettuce
Prickly lettuce
Lactuca serriola ★★★
Russian knapweed
Russian knapweed
Centaurea repens ★★★
Russian thistle
Russian thistle
Salsola kali ★★★
Shepherd's purse
Shepherd's purse
Capsella bursa-pastoris ★★★
Sunflowers
Sunflowers
Helianthus ★★★
Tumble mustard
Tumble mustard
Sisymbrium altissimum ★★★
Vetches
Vetches
Vicia ★★★
Western ragweed
Western ragweed
Ambrosia psilostachya ★★★
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 ★★★
Biennial wormwood
Biennial wormwood
Artemisia biennis ★★
Common dandelion
Common dandelion
Taraxacum officinale ★★
Common tansy
Common tansy
Tanacetum vulgare ★★
Docks
Docks
Rumex acetosella ★★
Dog mustard
Dog mustard
Erucastrum gallicum ★★
Smartweed
Smartweed
Polygonum hydropiper ★★
Smooth sowthistle
Smooth sowthistle
Sonchus oleraceus ★★
Tartary buckwheat
Tartary buckwheat
Fagopyrum tataricum ★★
Blue lettuce
Blue lettuce
Lactuca tatarica ★
Canada thistle
Canada thistle
Cirsium arvense ★
European bindweed
European bindweed
Convolvulus arvensis ★
Field horsetail
Field horsetail
Equisetum arvense ★
Hoary cress
Hoary cress
Lepidium draba ★
Leafy spurge
Leafy spurge
Euphorbia esula ★
Perennial sow thistle
Perennial sow thistle
Sonchus arvensis ★
Black bindweed
Black bindweed
Fallopia convolvulus