If the grass had Ragwort you would need to wait until they have died and dispapeared before letting your horses graze on the treated area. Gallup Home and Garden weed killer is absorbed easily onto the soil particles so does not leach and is also broken down by the soil bacteria into harmless natural substances. Annual weeds should be actively growing with grasses having at least 5cm of leaf and broad leaved weeds at least two expanded true leaves when sprayed. If new shoots come up should I apply weedkiller 3 days in a row and how long to wait before i cut them back?

I have a bad growth of Atlantic/Irish ivy growing through a tall dry stone wall,I bought some Gallup 360 a few years ago to treat a similar problem. I have sprayed the 50:50 mix to the Japanese weed foliage and shoots also to the surrounding grass areas about 3 meters from the knotweed’s crown, coz there were few of its young shoots popping up, I don’t care for the grass and other small plant, as to send maximum herbicide to knotweeds roots as quickly as possible.

Please Note: When temperature drops below 15-16°c, plant growth slows and uptake time increases for all plants and weeds. Also children and pets don’t need to be excluded from treated areas once the spray has dried as it is a domestic use weedkiller.

It kills a very wide range of both annual and perennial weeds in amenity and home and garden situations. This site requires cookies to provide basic functionality and collect statistical information to allow us to improve our site.The Gallup 490 Super Concentrated Glyphosate Weed Killer is a stronger solution for professional use.