Ireland

DyWeed 50

registration_data_unavailable
DHM Agrochemicals - herbicide
02719

A soluble concentrate formulation containing 500 g/l (42.75 w/w) 2,4-D as the dimethylamine salt for the control of broad-leaved weeds in cereals and grassland.

DIRECTIONS FOR USE

WINTER WHEAT and RYE
Weeds: 
Black Mustard, Charlock, Fat-Hen, Field Pennycress, Hairy Tare, Treacle Mustard, White Mustard, Shepherds Purse, Small Nettle, Wild Radish, Corn Buttercup, Common Orache, Common Poppy, Field Forget-me-not, Prickly Sowthistle, Smooth Sowthistle, Wild Turnip, Black-bindweed, Black nightshade, Bugloss, Common Chickweed, Common fieldspeedwell, Common fumitory, Common Mouse-ear, Dove’sfoot Crane’s-bill, Field Gromwell, Green Field speedwell, Groundsel, Ivyleaved Speedwell, Knotgrass, Pale Persicaria, Redshank, Scarlet Pimpernel, Shephers’s- needle, Sun spurge, Viper’sbugloss, Wall speedwell, Common Orache, Common Poppy, Smooth Sowthistle, Knotgrass, Scentless Mayweed , Creeping Thistle.
Rate: 2.5l/ha
Critical comments: maximum number of application - 1. Maximum total dose: 2.5l/ha. Latest time of application: Before the first node detectable Winter barley, stage.

WINTER BARLEY, WINTER OATS, SPRING WHEAT, SPRING BARLEY
Weeds: Black Mustard, Charlock, Fat-Hen, Field Pennycress, Hairy Tare, Treacle Mustard, White Mustard, Shepherds Purse, Small Nettle, Wild Radish, Corn Buttercup, Common Orache, Common Poppy, Field Forget-me-not, Prickly Sowthistle, Smooth Sowthistle, Wild Turnip, Black-bindweed, Black nightshade, Bugloss, Common Chickweed, Common fieldspeedwell, Common fumitory, Common Mouse-ear, Dove’sfoot Crane’s-bill, Field Gromwell, Green Field speedwell, Groundsel, Ivyleaved Speedwell, Knotgrass, Pale Persicaria, Redshank, Scarlet Pimpernel, Shephers’s- needle, Sun spurge, Viper’sbugloss, Wall speedwell, Common Orache, Common Poppy, Smooth Sowthistle, Knotgrass, Scentless Mayweed , Creeping Thistle.
Rate: 2l/ha
Critical comments: maximum number of application - 1. Maximum total dose: 2l/ha. Latest time of application: Before the first node detectable Winter barley, stage.

CEREALS (undersown with grass and/or clover)
Weeds: Black Mustard, Charlock, Fat-Hen, Field Pennycress, Hairy Tare, Treacle Mustard, White Mustard, Shepherds Purse, Small Nettle, Wild Radish, Corn Buttercup, Common Orache, Common Poppy, Field Forget-me-not, Prickly Sowthistle, Smooth Sowthistle, Wild Turnip, Black-bindweed, Black nightshade, Bugloss, Common Chickweed, Common fieldspeedwell, Common fumitory, Common Mouse-ear, Dove’sfoot Crane’s-bill, Field Gromwell, Green Field speedwell, Groundsel, Ivyleaved Speedwell, Knotgrass, Pale Persicaria, Redshank, Scarlet Pimpernel, Shephers’s- needle, Sun spurge, Viper’sbugloss, Wall speedwell, Common Orache, Common Poppy, Smooth Sowthistle, Knotgrass, Scentless Mayweed , Creeping Thistle.
Rate: 1l/ha
Critical comments: maximum number of application - 1. Maximum total dose: 1l/ha. Latest time of application: Before the first node detectable Winter barley, stage.

AGRICULTURAL GRASSLAND
Weeds: Autumn hawkbit, Creeping buttercup, Platains, Cat’s ear, Common knapweed, Common nettle, Creeping thistle, Curled dock, Daisy, dandelion, Meadow buttercup, Self-heal, Spear thistle, Softrush, Common ragwort, Field bindweed, Broad-leaved dock, Bulbous buttercupø, Common ragwort, Common sorrel, Dwarf thistle, Hard rush, Horsetails, Meadowsweet, Perennial sow-thistle, Sheep’s sorrel, Wild onion, Yarrow, Yellow rattle.
Rate: 3.3l/ha
Critical comments: maximum number of application - 1. Maximum total dose: 3.3l/ha. Latest time of application:Before the first node detectable Winter barley, stage.

AMENITY GRASSLAND
Weeds: Creeping buttercup, Mouseear hawkweed, Plantains, Thrift, Bulbous buttercupø, Cats-ear, Common chickweed, Common sorrel, Curled dock, Daisy, Dandelion, Dwarf thistle, Hawkbits, Heath bedstraw, Marsh pennywort, Sea-milkwort, Sheep’s sorrel, Smooth hawk’s-beard, Stork’sbills, Common ragwort, Common mouse-ear, Creeping cinquefoil, Lesser celandine, Procumbent pearlwort, Selfheal, Silverweed, Yarrow.
Rate: 3.3l/ha
Critical comments: maximum number of application - 3. Maximum total dose: 9.9l/ha.

WEEDS CONTROLLED
Apply when the majority of annual weeds are at the seeding*stage. For the control of perennial weeds in established grassland, the best results are obtained if spraying is carried out shortly before flowering. Whilst spraying at this late stage will not give complete control of annual weeds. It may effectively check most of the species mentioned. A second application may be necessary to provide an adequate level of weed control on amenity grassland and managed amenity turf.

Seeding =Fully expanded cotyledons to 2 expanded true leaves.
Weeds controlled - Cereals Hoary Cress- Good control of this perennial weed can be achieved by treatment in winter cereal crops over two successive seasons using 1.6-1.8l/ha dose of DYWEED 50. Apply after the shots are 25-150mm high up to but before flowering.

1treatment will normally kill plants at all stages of growth up to the early bud stage. For best levels of control, treat in April – June when rosettes are growing strongly but before flower buds are well formed.
2treat when growing well in May or early June. Top growth is removed or considerably reduced for the season of treatment. In grassland for hay or silage, shoot kill may be obtained by using 2.0 l/ha two weeks before cutting.

Dyweed 50 may be used on all varities of the listed crops within the recommended growth stages. DO NOT treat barley intended for malting, spring oats or any cereal mixture with peas or beans or other legumes. Apply in at least 110 L/ha water. In grassland and turf, where weeds might be shielded by grasses, use 400 l/ha water. Refer to the table for special situation pertaining to grass floors under apples and pears.

MIXING AND SPRAYING
Before use ensure that the spraying equipment has been thoroughly cleaned. Half-fill the spray tank with the clean water. With the contents of spray tank under re-circulation, and the measured quantities of Dyweed 50 through the filter. Top up the tank with water to the required level and maintain re-circulation until the tank is sprayed out. Apply the recommended quantity of Dyweed 50 through a conventional hydraulic sprayer using a MEDIUM spray to cover the weed leaves evenly and thoroughly. Avoid spray drift onto neighbouring crops and all broad-leaved plants outside the target area. Do not spray in windy weather. Beets, all brassicas (including oilseed rape, Sweedes and turnip) lettuce, sunflowers, onions, peas, potatoes, tomatoes, cucumbers, all fruit crops (including vines) and ornamentals are particularly susceptible to 2, 4-D and may be damaged by spray drift. After each days use, wash out with water and wetting agent. Wash out again with water, drain and allow to dry. Traces of herbicide left in the sprayer may damage susceptible crops if these are subsequently sprayed using the same equipment.

WEATHER AND GROWING CONDITIONS
Apply to a dry crop when rain is not forecast for at least 12 hours. Optimum results are obtained when the weeds are actively growing under good soil and weather conditions. Reduced weed control may be obtained during drought or cold weather. If rain falls shortly after application, the effect of Dyweed 50 may be reduced.

RESISTANCE MANAGEMENT
When herbicides with the same mode of action are used repeatedly over several years in the same field, selection of resistant biotypes, can take place. These can propagate and may become dominating. A weed species is considered to be resistant to a herbicide if it survives a correctly applied treatment at the recommended dose. A strategy for preventing and managing such resistance should be adopted. This should include integrating herbicides with a programme of cultural control measures.

TERMS AND CONDITIONS OF SUPPLY, SALE OR USE
All goods supplied by DHM Agrochemicals Ltd are of high grade and we believe them to be suitable for the purposes for which we expressly supply them; but we cannot exercise any control over their mixing, use or application which may affect the performance of the goods all conditions and warranties statutory or otherwise as to the quality or fitness for any purpose of our goods are excluded and no responsibility will be accepted by us or our Associate Companies for and damage or injury whatsoever arising from their storage, handling, re-application or use. These conditions cannot be varied by our staff, our agents or by re-sellers of the product whether or not they supervise or assist in the use of such goods.

Effective
Crops
Winter wheat
BBCH
0 - 0
Registred norm
2.5 - 2.5
Preharvest Interval
-
Crops
Winter rye
BBCH
0 - 0
Registred norm
2.5 - 2.5
Preharvest Interval
-
Crops
Spring rye
BBCH
0 - 0
Registred norm
2.5 - 2.5
Preharvest Interval
-
Crops
Winter barley
BBCH
0 - 0
Registred norm
2 - 2
Preharvest Interval
-
Crops
Winter oats
BBCH
0 - 0
Registred norm
2 - 2
Preharvest Interval
-
Crops
Spring wheat
BBCH
0 - 0
Registred norm
2 - 2
Preharvest Interval
-
Crops
Spring barley
BBCH
0 - 0
Registred norm
2 - 2
Preharvest Interval
-
Crops
Grassland
BBCH
0 - 0
Registred norm
3.3 - 3.3
Preharvest Interval
-
Crops
Winter triticale
BBCH
0 - 0
Registred norm
1 - 1
Preharvest Interval
-
Crops
Spring triticale
BBCH
0 - 0
Registred norm
1 - 1
Preharvest Interval
-
Crops
Spring oats
BBCH
0 - 0
Registred norm
1 - 1
Preharvest Interval
-
Effective
Annual nettle
Annual nettle
Urtica urens ★★★
Autumn Hawkbit
Autumn Hawkbit
Leontodon autumnalis ★★★
Black mustard
Black mustard
Brassica nigra ★★★
Canada thistle
Canada thistle
Cirsium arvense ★★★
Corn buttercup
Corn buttercup
Ranunculus arvensis L. ★★★
Creeping buttercup
Creeping buttercup
Ranunculus repens L. ★★★
Fat hen
Fat hen
Chenopodium album ★★★
Field penny-cress
Field penny-cress
Thlaspi arvense ★★★
Hairy Tare
Hairy Tare
Vicia hirsuta ★★★
Shepherd's-purse
Shepherd's-purse
Capsella bursa-pastoris ★★★
Thrift
Thrift
Armeria maritima ★★★
Treacle-mustard
Treacle-mustard
Erysimum cheiranthoides ★★★
White mustard
White mustard
Sinapis alba ★★★
Wild mustard
Wild mustard
Sinapis arvensis ★★★
Wild radish
Wild radish
Raphanus raphanistrum ★★★
Catsear, flatweed
Catsear, flatweed
Hypochoeris radicata ★★
Common daisy
Common daisy
Bellis perennis ★★
Common dandelion
Common dandelion
Taraxacum officinale ★★
Common nettle
Common nettle
Urtica dioica ★★
Common orache
Common orache
Atriplex patula ★★
Common poppy
Common poppy
Papaver rhoeas ★★
Common Ragwort
Common Ragwort
Senecio jacobaea ★★
Curly dock
Curly dock
Rumex crispus ★★
Field bindweed
Field bindweed
Convolvulus arvensis ★★
Field Forget-me-not
Field Forget-me-not
Myosotis arvensis ★★
Field Mustard
Field Mustard
Brassica campestris ★★
Glaux
Glaux
Glaux maritima ★★
Heath bedstraw
Heath bedstraw
Galium saxatile ★★
Lesser Knapweed
Lesser Knapweed
Centaurea nigra ★★
Marsh Pennywort
Marsh Pennywort
Hydrocotyle vulgaris ★★
Meadow buttercup
Meadow buttercup
Ranunculus acris ★★
Redstem filaree
Redstem filaree
Erodium cicutarium ★★
Scentless mayweed
Scentless mayweed
Tripleurospermum sp. ★★
Self-heals
Self-heals
Prunella ★★
Smooth Hawksbeard
Smooth Hawksbeard
Crepis capillaris ★★
Soft rush
Soft rush
Juncus effusus ★★
Sow thistle
Sow thistle
Sonchus oleraceus ★★
Spear Thistle
Spear Thistle
Cirsium vulgare ★★
Spiny sowthistle
Spiny sowthistle
Sonchus asper ★★
Black bindweed
Black bindweed
Fallopia convolvulus ★
Broadleaved dock
Broadleaved dock
Rumex obtusifolius ★
Bulbous Buttercup
Bulbous Buttercup
Ranunculus bulbosus ★
Common bugloss
Common bugloss
Anchusa officinalis ★
Common chickweed
Common chickweed
Stellaria media ★
Common fumitory
Common fumitory
Fumaria officinalis ★
Common groundsel
Common groundsel
Senecio vulgaris ★
Common knotgrass
Common knotgrass
Polygonum aviculare ★
Common yarrow
Common yarrow
Achillea millefolium L. ★
Corn speedwell
Corn speedwell
Veronica arvensis ★
Creeping cinquefoil
Creeping cinquefoil
Potentilla reptans ★
Dove's-foot Crane's-bill
Dove's-foot Crane's-bill
Geranium molle ★
Dwarf thistle
Dwarf thistle
Cirsium acaule ★
European black nightshade
European black nightshade
Solanum nigrum ★
Field Gromwell
Field Gromwell
Lithospermum arvense ★
Field horsetail
Field horsetail
Equisetum arvense ★
Green field-speedwell
Green field-speedwell
Veronica agrestis ★
Hard rush
Hard rush
Juncus inflexus ★
Ivy-leaved speedwell
Ivy-leaved speedwell
Veronica hederifolia ★
Lesser celandine
Lesser celandine
Ficaria verna ★
Meadowsweet
Meadowsweet
Filipendula ulmaria ★
Mouse-ear chickweed
Mouse-ear chickweed
Cerastium fontanum ★
Pale smartweed
Pale smartweed
Polygonum lapathifolium ★
Perennial sow thistle
Perennial sow thistle
Sonchus arvensis ★
Persian speedwell
Persian speedwell
Veronica persica ★
Procumbent Pearlwort
Procumbent Pearlwort
Sagina procumbens ★
Scarlet pimpernel
Scarlet pimpernel
Anagallis arvensis ★
Sheep's sorrel
Sheep's sorrel
Rumex acetosella ★
Shepherd’s-needle
Shepherd’s-needle
Scandix pecten-veneris ★
Sorrel
Sorrel
Rumex acetosa ★
Spotted ladysthumb
Spotted ladysthumb
Polygonum persicaria ★
Sun spurge
Sun spurge
Euphorbia helioscopia ★
Viper’s Bugloss
Viper’s Bugloss
Echium vulgare ★
Wild onions
Wild onions
Allium canadense ★
Yellow rattle
Yellow rattle
Rhinanthus minor ★