DyWeed 50Registration date 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.

CropsBBCHRegistred normPreharvest Interval
Grassland0 - 03.3 - 3.3-
Spring barley0 - 02 - 2-
Spring oats0 - 01 - 1-
Spring rye0 - 02.5 - 2.5-
Spring triticale0 - 01 - 1-
Spring wheat0 - 02 - 2-
Winter barley0 - 02 - 2-
Winter oats0 - 02 - 2-
Winter rye0 - 02.5 - 2.5-
Winter triticale0 - 01 - 1-
Winter wheat0 - 02.5 - 2.5-

Effective