Agrobase Canada
MCPA Sodium 300 Registration expired
NUFARM - Herbicide
14718

For use in wheat, barley, oats, peas, rye, forage legumes, flax (do not use on low linolenic acid varieties) and corn

DIRECTIONS FOR USE: 
DO NOT enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 12 hours.

RESISTANCE-MANAGEMENT RECOMMENDATIONS: 
For resistance management, Nufarm MCPA Sodium 300 Liquid Herbicide is a Group 4 herbicide. Any weed population may contain or develop plants naturally resistant to Nufarm MCPA Sodium 300 Liquid Herbicide and other Group 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 resistancemanagement strategies should be followed.
To delay herbicide resistance:
Where possible, rotate the use of Nufarm MCPA Sodium 300 Liquid Herbicide or other Group 4 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.
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 or to report suspected resistance, contact Nufarm Agriculture Inc. at 1-800-868-5444 or at www.nufarm.ca.

USE PRECAUTIONS: 
Avoid spray drift to any desirable vegetation NOT listed on the label as damage may occur. Avoid contamination of ponds, streams, rivers and other water sources. Do not spray during periods of high winds when spray is likely to drift. Coarse sprays are less likely to drift. Do not spray during periods of high temperatures when crops may be under stress as damage to the crop may occur.
Do not permit lactating dairy animals to graze fields within 7 days after application.
Withdraw meat animals from treated fields at least 3 days before slaughter.
Do not harvest forage or cut hay within 7 days after application.

TIMING: 
For best results spray when WEEDS ARE YOUNG AND ACTIVELY GROWING. Apply in good growing conditions. Application must be made before the crop canopy shields the weeds.

SPRAYER: 
Clean all spray equipment thoroughly before use. Select nozzle tips to apply the recommended volume per hectare. Higher water volumes will reduce the risk of crop injury. Calibrate the sprayer and adjust the boom height to ensure the uniform coverage. Nozzles must be in good condition and spraying the same volume. Flat fan nozzle tips are recommended. 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.

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, 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. 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.

MIXING: 
Shake this product well before using. Half fill the spray tank with clean water. Add the required amount of product and agitate thoroughly. Fill the tank with clean water and agitate well before use.
NOTE: If spray solution has been left standing, agitate thoroughly before use.

USES: 
WHEAT, OATS, BARLEY, RYE (not underseeded with legumes): 
Apply when grain is in the 2-leaf to early flag leaf (or shot-blade) stage. Use 1.5 to 2.75 litres of product per hectare in 50 – 200 litres of water. Do not apply more than one treatment per year.
WHEAT, OATS, BARLEY, RYE (underseeded with legumes): 
Apply when legume seedlings are in the first to third trifoliate leaf stage and before they are 10 cm high and when the grain forms a protective canopy over the legumes. For clover, use 0.9 – 1.5 litres of product per hectare in 50-200 litres of water. If the grain does not protect the clover, use the lower rate of 0.9 L/ha. Spray before the cereals are in the early flag leaf or shot-blade stage. Do not apply on sweet clover. Do not apply more than one treatment per year.
FORAGE LEGUMES (alfalfa and bird’s-foot trefoil): 
Use a tank-mix of Nufarm MCPA Sodium 300 at 115 mL/ha plus EMBUTOX Liquid Herbicide at 1.25 L/ha in 150 to 200 litres of water per hectare. Spray when the legumes have from one to four trifoliate leaves and the cereals are between the 5-leaf stage (fully expanded) to the early flag leaf stage. Do not apply more than one treatment per year.
WINTER WHEAT, FALL RYE: 
Treat in the spring between full tillering and the flag leaf stage. Use 1.5 to 2.75 litres of product per hectare in 50 to 200 litres of water. Do not apply more than one treatment per year.
PEAS (field and processing): 
Apply when the peas are 10 – 15 cm high, but before the flower buds are formed. This treatment may also check the growth of Canada thistle. Use 1 litre of product per hectare in 250 to 300 litres of water. Do not apply to peas in Nova Scotia.
FLAX (do not use on low linolenic acid varieties) (except if grown for fibre):
Apply when the flax (do not use on low linolenic acid varieties) is 5 cm tall to just before the bud stage. Do not treat after the early bud stage. Use 1.5 to 1.75 litres of product per hectare in at least 100 litres of water. Do not apply more than one treatment per year.
FIELD CORN: 
Apply to field corn before the 6-leaf stage and/or before corn is 15 cm tall (LEAF EXTENDED) DAMAGE TO CORN WILL RESULT IF SPRAYED BEYOND THIS STAGE. Use 1.5 to 2 litres of product per hectare in 100 to 200 litres of water. Do not apply more than one treatment per year. When hand-harvesting corn, the Re-entry Interval (REI) and Pre-harvest Interval (PHI) is 15 days. 
NOTE: Rates of 1.8 L/ha or more may cause severe damage.

WEEDS CONTROLLED: 
(DO NOT exceed the rates given for each specific crop identified in the Uses Section)
SUSCEPTIBLE:
Easy to kill weeds in the seedling stage (2 to 4 leaf stage). Use 0.9 to 2.0 litres per hectare. Use the higher rate for larger weeds, dry or cold weather or heavy infestations: Bluebur, burdock, cocklebur, false flax, flixweed, kochia, lamb’s-quarters, mustards (except dog and tansy), plantain, prickly lettuce, ragweeds, Russian pigweed, shepherd’s-purse, wild radish.

MORE RESISTANT: 
Harder-to-kill weeds in the seedling stage (2 to 4 leaf stage), use 2.25 to 2.75 litres per hectare. Use the higher rate for larger weeds, dry or cold weather, or heavy infestations: Annual sow-thistle, catnip, common chickweed, curled dock (young), daisy fleabane, dandelion (in fields), dog mustard, goat’s beard, heal-all, hemp-nettle, mouseeared chickweed, oak-leaved goose-foot, peppergrass, purslane, redroot pigweed, Russian thistle, smartweeds, stinging nettle, tansy mustard, teasel, yellow rocket.

TOP GROWTH CONTROL ONLY: 
Use 2.25 to 2.75 litres per hectare. Use the higher rate for dry or cold weather or heavy infestations: blue lettuce, buttercup, Canada thistle, chicory, curled dock, field bindweed, hoary cress, lady’s thumb, leafy spurge, perennial sow-thistle, Russian knapweed, Tartary buckwheat.

CLEANING OF SPRAYER: 
Thoroughly clean the herbicide sprayer before applying any other chemical on crops which may be damaged (see USE PRECAUTIONS). Wash the outside of the sprayer and drain the tank completely. Remove and clean filters, screens and nozzle tips separately. Fill the sprayer tank with clean water. With the agitator running, flush out the lines and boom, then drain. Fill the sprayer with clean water and for each 100 L add 1 L household ammonia. Operate the pump and agitator for 15 minutes. If possible, let the solution remain in the tank and hoses overnight; recirculate and flush out the lines and boom, then drain. Rinse out twice with clean water, recirculating and draining each time. DO NOT contaminate irrigation or drinking water when cleaning the sprayer.

Effective
Crops
Winter wheat
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Spring wheat
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Spring oats
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Winter oats
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Spring barley
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Winter barley
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Winter rye
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Spring rye
BBCH
0 - 0
Registred norm
1.5 - 2.75
Preharvest Interval
7
Crops
Peas
BBCH
0 - 0
Registred norm
1 - 1
Preharvest Interval
7
Crops
Winter linseed, flax
BBCH
0 - 0
Registred norm
1.5 - 1.75
Preharvest Interval
7
Crops
Spring linseed, flax
BBCH
0 - 0
Registred norm
1.5 - 1.75
Preharvest Interval
7
Crops
Corn, maize
BBCH
0 - 0
Registred norm
1.5 - 2
Preharvest Interval
15
Crops
Clover
BBCH
0 - 0
Registred norm
0.9 - 1.5
Preharvest Interval
7
Crops
Alfalfa, Lucerne
BBCH
0 - 0
Registred norm
115 - 115
Preharvest Interval
7
Effective
Ball mustard
Ball mustard
Neslia paniculata ★★★
Black mustard
Black mustard
Brassica nigra ★★★
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 flax
False flax
Camelina sativa ★★★
Fat hen
Fat hen
Chenopodium album ★★★
Field mustard
Field mustard
Brassica campestris ★★★
Hare's ear mustard
Hare's ear mustard
Conringia orientalis ★★★
Hedge mustard
Hedge mustard
Sisymbrium officinale ★★★
Indian hedge mustard
Indian hedge mustard
Sisymbrium orientale ★★★
Kochia
Kochia
Bassia scoparia ★★★
Plantain
Plantain
Musa paradisiaca ★★★
Prickly lettuce
Prickly lettuce
Lactuca serriola ★★★
Russian pigweed
Russian pigweed
Axyris amaranthoides ★★★
Shepherd's purse
Shepherd's purse
Capsella bursa-pastoris ★★★
Tumble mustard
Tumble mustard
Sisymbrium altissimum ★★★
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 ★★★
Bittercress, herb barbara, yellow rocket
Bittercress, herb barbara, yellow rocket
Barbarea vulgaris ★★
Common chickweed
Common chickweed
Stellaria media ★★
Common dandelion
Common dandelion
Taraxacum officinale ★★
Common hempnettle
Common hempnettle
Galeopsis tetrahit ★★
Curly dock
Curly dock
Rumex crispus ★★
Daisy fleabane
Daisy fleabane
Erigeron annuus ★★
Dog mustard
Dog mustard
Erucastrum gallicum ★★
Goat’s-beard
Goat’s-beard
Aruncus dioicus ★★
Heal-all
Heal-all
Prunella vulgaris ★★
Mouse ear chickweed
Mouse ear chickweed
Cerastium fontanum ★★
Oak-leaved goosefoot
Oak-leaved goosefoot
Chenopodium glaucum ★★
Pepper grass
Pepper grass
Panicum whitei ★★
Red pigweed
Red pigweed
Portulaca oleracea ★★
Redroot pigweed
Redroot pigweed
Amaranthus retroflexus ★★
Russian thistle
Russian thistle
Salsola kali ★★
Smartweed
Smartweed
Polygonum hydropiper ★★
Smooth sowthistle
Smooth sowthistle
Sonchus oleraceus ★★
Stinging nettle
Stinging nettle
Urtica dioica ★★
Tansy mustard
Tansy mustard
Descurainia pinnata ★★
Wild teasel
Wild teasel
Dipsacus ★★