HY-D SuperPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

FORMULATION: 500g/l (42.7% w/w) 2, 4-D as the dimethylamine salt. Soluble concentrate formulatio                         

TARGETS: Controls ragwort plus a wide range of annual and perennial broad-leaved weeds in grassland and cereals.                                                          

PACK SIZE: 4x5L and 10L                                      

WATER VOLUME: Apply in 100-1000 litres of water per hectare

 

IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product

 

DO NOT mow or roll turf or amenity grassland for four days before or after application. The first four mowings after treatment must be composted for at least 6 months before use. DO NOT treat cereals, grass or turf suffering from stress caused by drought, disease or other adverse factors, such as freezing conditions. Ragwort is an ‘injurious weed’ and those who permit it to grow unchecked on their land are liable for prosecution under the Weeds Act (1959). Agricultural grassland destined for hay or silage in the spring, should be sprayed in the preceding autumn.

 

Apply Hy-D SUPER in 100-1000 litres of water per hectare using any standard high or low volume sprayer. Recommended rates are given in the weed susceptibility table for cereals. It is important not to exceed the maximum safe dose as follows:

Winter Cereals: Wheat or Rye

Maximum Dose: 2.5 litres per hectare

Winter Cereals:Barley or Oats

Maximum Dose:2.0 litres per hectare

 

Spring Cereals:Wheat or barley 

Maximum Dose:2.0 litres per hectare

Spring Cereals:Oats 

Maximum Dose:Not recommended

 

For cereals undersown with grass and/or clover but not lucerne. DO NOT spray with Hy-D SUPER before undersowing. Experience has shown that when weeds and cereals form a canopy undersown crops may be safely treated using not more than 1.0 litre per hectare at low volume. Clovers should have developed two to three true leaves before spraying. Red Clovers may be damaged.

 

Do not treat where clovers or other legumes are an important part of the sward. Grassland may be treated with 2.8-3.3 litres per hectare of Hy-D SUPER according to the weeds present. Recommended rates are given in the weed susceptibility table for grassland on the following panel. Clovers will receive a check. Top dressing ten days before treatment is recommended to assist kill of weeds and subsequent recovery of the sward.

 

Amenity grassland and managed amenity turf may be treated with 3.3 litres per hectare of Hy-D SUPER. The expected levels of control are detailed in the weed susceptibility table for amenity uses. Clovers will receive a check. Top dressing ten days before treatment is recommended to assist kill of weeds and subsequent recovery of the sward.

 

Spray weeds when the crop is actively growing. In general annual weeds are more susceptible at the seedling stage and perennials when the flower bud is forming. Timing of cereal spray must be determined by the stage of the crop growth.

Winter cereals: Spray in the spring from the leaf sheaf erect stage but before the first node detectable stage.

Spring cereals: Spray from the five-leaf fully expanded stage but before the first node detectable stage.

Grassland, Amenity Grassland and Managed Amenity Turf: Spray perennial weeds during their period of maximum growth, usually when the flower buds are beginning to form. The responses of perennial weeds to treatments are variable often only the aerial parts are killed but suppression may also occur. The recovery of weeds will be reduced if the crop is growing vigorously at the time of treatment.

 

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. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, CPA, your distributor, crop adviser or product manufacturer.

 

Rate/ha - Level of control -Weeds

0.7 L /ha - S (Cotyledon-Early flower-bud): Black Mustard, Charlock.

1.4 L/ha - S (Cotyledon-Early flower-bud): Fat-Hen, Field Pennycress, Hairy Tare, Treacle Mustard, White Mustard.

1.4 L/ha - S (Cotyledon-8 ETL): Shepherds Purse, Small Nettle, Wild Radish.

1.4 L/ha - MS (Cotyledon-2 ETL) or MR (4 ETL-Early flower-bud): Common Orache, Common Poppy, Field Forget-me-not, Prickly Sowthistle, Smooth Sowthistle, Wild Turnip.

1.4 L/ha - MR (Cotyledon-2 ETL) or R (4 ETL-Early flower-bud): Black-bindweed, Black nightshade, Bugloss, Common Chickweed, Common field-speedwell, Common fumitory, Common Mouse-ear, Dove’s-foot,

Crane’s-bill, Field Gromwell, Green Field speedwell, Groundsel, Ivy-leaved Speedwell, Knotgrass, Pale Persicaria, Redshank, Scarlet Pimpernel, Shepherd’s-needle, Sun spurge, Viper’s-bugloss, Wall speedwell.

2.0 L/ha - S (Cotyledon-4 ETL) or MR (6 ETL-Early flower-bud): Common Orache, Common Poppy, Smooth Sowthistle

2.0 L/ha - MR (Cotyledon-2 ETL) or R (4 ETL-Early flower-bud): Knotgrass, Scentless Mayweed

2.0-2.5 L/ha - S (Cotyledon-Early flower-bud): Creeping Thistle*

S = Susceptible, MS = Moderately Susceptible, MR = Moderately Resistant, R = Resistant

ETL = Expanded True Leaves,  = aerial growth only.

 

2.8 L/ha - Susceptible (Consistently good control, both shoots and roots): Autumn hawkbit, Creeping buttercup, Plantains.

2.8 L/ha - Moderately Susceptible (Aerial growth usually killed and a useful measure of long-term control obtained under suitable conditions): Cat’s ear, Common knapweed, Common nettle, Creeping

thistle, Curled dock, Daisy, Dandelion, Meadow buttercup, Self-heal, Spear thistle, Soft rush

3.3 L/ha - Moderately Susceptible (Aerial growth usually killed and a useful measure of long-term control obtained under suitable conditions): Common ragwort

 

2.8 L/ha - Moderately Resistant (Variable effect on aerial growth; appreciable long-term control unlikely) Broad-leaved dock , Bulbous buttercup, Common ragwort , Common sorrel  , Dwarf thistle, Hard rush, Horsetails , Meadowsweet, Perennial sow-thistle, Sheep’s sorrel  , Wild onion, Yarrow, Yellow rattle treat in spring or early summer, treat at early flower bud stage, treat in the autumn on new leaf or in the spring,  treat either pre-flowering in May or any time after defoliation, when growing vigorously (use 1.6 l/ha on seedling Dock spp.),  treatment 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.,  treat 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. treat before flowering and cut 4 weeks after (or before) treatment to improve control.  treat before flowering when the flowering shoot is developing rapidly and seedlings & rosettes are growing strongly.

 

2.8 L/ha - Susceptible (Consistently killed by one application): Creeping buttercup, Mouse-ear hawkweed, Plantains, Thrift

2.8 L/ha - Moderately Susceptible (Sometimes killed by one application, but may require a further application of an alternative product to give complete control.):Bulbous buttercup, Cats-ear, Common

chickweed, Common ragwort, Common sorrel, Curled dock, Daisy, Dandelion, Dwarf thistle, Hawkbits, Heath bedstraw, Marsh pennywort, Sea-milkwort, Sheep’s sorrel, Smooth hawk’s-beard, Stork’s-bills

2.8 L/ha - Moderately Resistant (Some effect from one application, but often requires two or three further applications of alternative products to give adequate control): Common mouse-ear, Creeping

cinquefoil, Lesser celandine, Procumbent pearlwort, Selfheal, Silverweed, Yarrow