Weedol is a selective weedkiller, meaning that it targets a specific set of weeds and won’t kill grass and nearby plants will be safe provided the instructions are followed. To ensure success, always measure your lawn so you know how much concentrate you need to mix in how much water. And always dilute the concentrate as per the manufacturer’s instructions. In the spring, when the weeds are actively growing I’ll treat a lawn with Weedol lawn weed killer concentrate. Apply ... with a home garden sprayer or watering can (medium rose) at as does rate of 10 ml in 10 litres of water / 10sq.m

The instructions for your weed killer may state a maximum of one application a year. Presumably this is to safe guard the grass and NOT the weeds! The logic, therefore, is that the side effects of the lawn weed killer above a certain level may damage or even kill the grass. The Lawnsmith recommended weed killers, Weedol (Verdone) and Resolva , state only one treatment per year. However, we have selected them because of their different active ingredients which means you can now treat twice a year if you need to as long as you use each product just once. This only applies when spraying the whole lawn with diluted weed killer concentrate NOT ‘ready to use’ weed killers for spot treating weeds which if targeted on the weed can be used more often. Selective Lawn Weed Killer Benefits:This applies primarily to blanket spraying the whole lawn. Growth should be good and the grass healthy before applying weed killer. If possible apply: So now you know you need a selective weedkiller to kill weeds without damaging your lawn. But how do you know a particular weed killer is safe to use on your lawn? The definition of a weed is a plant that is growing in the wrong place! This means all plants can be called a weed at sometime. When it comes to applying it, be very careful not to overdo it. The combination of high nitrogen, iron sulphate and weed killing chemicals can scorch your lawn if you’re too heavy-handed with the application. It much better to apply a little less than too much. Both contain different chemicals that treat broad-leaved weeds, so if you find that Weedol failed to work on a specific weed species, there’s a good chance that Resolva or Greenforce will do the job.

For complete weed control a concentrate will do as good a job as ‘ready to use’ and vice versa. Use them according to the kind of treatment required. Weedol (Verdone) and Resolva Use Weed Killer Concentrate for whole lawn weed control - easy to apply with a watering can and sprinkle bar For complete weed control a concentrate will do as good a job as ‘ready to use’ and vice versa. Use them according to the kind of treatment required. You may have noticed that weed killers are not made of the same chemicals. A lawn weed killer is a carefully selected group of active ingredients designed to kill a certain group of creeping and broad leaved weeds. Not all weed killers will kill all your lawn weeds hence you need to use a range of active ingredients to give yourself the best chance of good weed control. We have therefore selected two groups of weed killers that offer the broadest range of active ingredients so that if one doesn’t kill a certain weed the other may do. Use one group of chemicals for ‘full lawn treatment’ and the other group for ‘spot treatment’. If you only need to ‘spot treat’ then have two different ones on hand or when one runs out buy a different one to replace it. How to use two different Weed Killer Products Lawnsmith Option 1 For example, an amateur weed killer concentrate might take 1 part concentrate to 3 parts water to make the desired strength.

In actual fact, the active ingredients in professional weed killers are exactly the same as the ones you’ll find in weed killers for home use. After mowing. Leave at least 2 days if applying liquid lawn weed killer to the whole lawn. Don’t mow for a further 3 days

Hopefully it goes without saying that growth should be good and the grass healthy before applying weed killer to the grass and weeds. One of my favourite times for complete lawn weed control is in late August or September whilst there is still some warmth around. I would recommend this if you just need the one application in the year. The reason for this is: Secondly, (and this is the reason many people mix it too weak) many users don’t get an accurate measurement of their lawn. They completely underestimate how big their lawn is and only use enough concentrate for 30 square meters when in fact their lawn is 50 square meters. They come ready to use in a spray bottle and are perfect for blasting individual weeds. Ideal if you only have one or two in your lawn. of reviewers rated the product 4 or 5 stars out of 5, which indicates that this product met expectations.Some of the 3 star reviewers stated that the product killed most but not all of the weeds. This highlights the fact that Weedol kills over 99% of weeds but not 100%, there are a few species that won’t respond to the product and may need to be manually pulled out or treated with different chemicals. Evergreen is more designed for keeping an already relatively weed-free lawn, free of new invaders. So use it as a method of weed control, not the cure to a problem.

I have some weeds in my lawn that Verdone (which is what I have been using for some years) doesn't seem to have killed, and I thought I would try alternating with a different brand, ad I have chosen the one with the "most different ingredients" in the hope that that will have some impact no the weeds that Verdone is leaving behind. That is Resolva Lawn Weedkiller.Our recommended weed killers Resolva and Weedol (Verdone) suggest only one treatment per year but if you use each one once that allows you two full lawn treatments in a year. This only applies to weed killer for the coverage of the whole lawn NOT ready to use for spot treatments.