Roundup Concentrate







Contains glyphosate. MAFF No 09167. A multi-action weedkiller killing roots as well, and is fully biodegradable. Roundup offers exceptional value and independent tests by a leading magazine found it offers twice the coverage per sq Meter than other branded domestic weedkillers. The 1 litre pack will treat 1000sq. m. For successful treatment of those difficult weeds like couch grass, bindweed and ground elder, plus all annual broad-leaved and brush weeds.

Roundup GC systemic weedkillers kill from the inside out. This systemic weedkiller goes in through foliage and moves right down to the root tips to kill off the whole plant. Kills even the toughest weeds and leaves no harmful residues to allow for replanting. Children and pets need not be excluded from treated areas.

  • 280ml Treats up to 280 sq meters -
  • 540ml pack trats up to 540 sq meters -
  • 1 litre treats up to 1000sq meter

Roundup GC Weedkiller Concentrate (contains Glyphosate acid) MAPP12915

Roundup GC is absorbed by leaves and moves throughout the entire plant, above and below ground, to destroy annual and perennial weeds, including grasses. It is activated on contact with the soil and is then broken down by soil micro-organisms, to allow replanting.

When to use: Roundup GC kills most garden weeds with a single application. Apply at any time when the weeds are actively growing and have adequate leaf area to absorb the spray. Rain within 6 hours of spraying may reduce effectiveness, so repeat treatment may be necessary. Avoid all contact with cultivated plants by spray or spray drift. If cultivated plants are treated by mistake, immediately and thoroughly wash off the weedkiller with ample water.

Where to use: Roundup GC controls annual weeds and most perennial weeds around the garden and on areas not intended to bear vegetation, e.g. gravel areas, paths, drives, hard surfaces, patios, tarmac, along fences and for edging lawns. It can be used to clean up weedy ground before planting vegetables, flowers, bushes and trees, and to renovate overgrown areas.

How to use: Although not a requirement, as good practice, we recommend wearing waterproof gloves and gardening footwear. Apply by sprayer or watering can (fitted with a very fine rose or dribble bar) to lightly wet the leaves. Do not apply through, or store in, galvanised or unlined mild steel sprayers or watering cans.

Some tough weeds may need a repeat treatment if re-growth appears. Weeds show effects within 2 – 4 weeks. Dead or dying weeds can be dug in or composted without harming future crops.

Restrictions: Do not walk into treated areas until the product has dried on leaves to avoid transfer to lawns and other desired vegetation.

Replanting and sowing: Light cover of annual weeds: replanting / sowing can commence the day after treatment. Dense cover including perennial weeds: Leave at least 7 days for the weedkiller to move to underground roots and shoots before digging or cultivating soil.

After application, rinse the sprayer/watering can 3 times, pouring rinse water over bare ground. Triple rinse the empty bottle and pour rinse water over bare ground.

Roundup GC to be added to: Sprayer – 1 litre of water / Watering can – 5 litres of water.

Annual weeds (chickweed, speedwell, annual meadow grass): 20ml, area to be treated 20m2, best time of year to treat: April – November.

Grasses (including crouch): 30 ml, area to be treated 20m2, best time of year to treat: April – November. Perennial broad-leaved weeds (bindweed, dandelions, docks, thistle (some tough weeds may need a repeat treatment if re-growth appears)): 30ml, area to be treated 20m2, best time of year to treat: Dandelions, docks: April –October. Bindweed, Thistles: Around time of flowering.

Brush weeds (brambles, nettles, bracken (some tough weeds may need a repeat treatment if re-growth appears)): 40ml, area to be treated 20m2, best time of year to treat: Brambles, nettles, scrub: June – September. Bracken: July – August. Fully grown nettles: cut back in early summer and treat re-growth in September.

Areas not intended to bear vegetation: 30ml, area to be treated: 20m2, best time of year to treat: April – November.

Guide: 1 litre is approximately 2 pints, 5 litres is approximately 1 gallon. The output of a watering can is about 5 times greater than that of a sprayer. The same amount of Roundup GC is required to treat 20m2 when diluted in 1 litre of water in a sprayer or in 5 litres of water in a watering can.

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