David Grays Winter Grass Killer

Dissolves easily – Great stuff, apply every Anzac Day, your lawn will be weed free all winter. Its a wettable powder, so make a paste first in a small container, then tip into the main sprayer. Apply to wet lawn and then water in twice as per the instructions for best effect. Show details

does more than it says - it stops wintergrass seeds germinating as well as killing the plants – It is best to use this in April and May (a month apart) in Perth so you are preventing, rather than killing, the wintergrass. It needs to be washed in straight after spraying, and again around 24hrs later, with 12-25mm rain or irrigation. Hard to arrange with irrigation only allowed twice a week in Perth. Why so much irrigation? Perhaps because… Read more

the chemical breaks down in sunlight but is safe below the surface? It is a powder that is hard to mix in a sprayer, so use a litre container and slowly add a tiny bit of water, making a thick no-lumps paste first, then slowly diluting it down then adding to the sprayer. Shake the sprayer occasionally while using it (dance around a bit). The watering in and mixing are a hassle but the results are great.

Terrible Powder – It clogged my sprayer up because the powder would not dissolve no matter how many times I agitated it or stirred it. I couldn't even use the product as it wouldn't come out my sprayer which performs perfectly with every other chemical I put in it. So I put it in a watering can to get some use out of it, but then it clogged my watering can. I… Read more

spent over an hour cleaning my pressure sprayer nozzles with pins as they were clogged with the powder.

It was an absolute waste of my $20. And this should be looked into