This is not necessarily due to any shortcoming of the herbicide itself, but related to how plants absorb moisture. Most plants absorb more moisture in the cool temperatures of the early morning, but stop when temperatures rise in the afternoon. Whilst Neudorff might not be a particularly well-known company, their WeedFree Plus Concentrate is a powerful weed killer that works on relatively stubborn weeds. The worlds most popular weed killer. It is used across the world in gardens, farms & public places. We love this stuff. It's not difficult to see why, it's an effective and super strong weed killer. Apply the spray evenly to the weeds, to lightly wet the leaves. Do not walk on treated areas until spray has dried on leaves to avoid transfer to lawns and other vegetation.

Longevity: Any weed killers that needed to be reapplied after rain were significantly marked down, as this doubled the time you’d have to spend on weed killing. Weed killers that killed the entire plant, including the roots, were rated the best, as these are the only products that ensure long-lasting results. Pumping the handle creates pressure in the container, and when the button on the wand is pressed, the weed killer travels through the hose and out of the nozzle. The output can be adjusted, producing either a spray or a fine jet. Location of the weed is also important. For example, if a weed is growing in the middle of the lawn then you should use a selective weedkiller, and if it is growing between patios or pavings then a residual weedkiller would be more appropriate. He then explained that we had recently just had a particularly dry spell for the last few weeks, and that the weeds would be reacting to drought and this can make them less likely to absorb the weed killer. Therefore, giving them a light watering for a day or two before applying the weed killer should help. Edit * This took longer to take hold – about two months. Now it appears completely dead and I did not re-apply weed killer, just left Gallup to it’s course. I think it’s fair to say Gallup is the best value for money from my tests. This is mathematically proven: It took 3 months to kill a shrub with Gallup – Very impressed with this testd is most widely used by homeowners on lawns and turfed areas. It is more commonly used by farmers and professional users. It can be applied without a spraying certificate and is exactly the same strength as professional weed killers (360g/l of Glyphosate). That pretty much sums the product up really. It’s really strong and it works great but there is a little more to discuss…

The death of the sprayed weed can take up to 28 days, however, just one application can last a whole season. Once treated the area should not be dug or disturbed in any way, as the long-lasting control will be reduced.D is a selective weed killer, it won't kill grass and is commonly applied to lawns for long lasting control of weeds in turf.