Try Hot Vinegar. Recommended to me by a friend I did a patch test by spraying some on and it worked a treat, will get around to finishing when weather improves. A lot cheaper than buying chemicals as own brand tesco stuff is about 45 cents! Might need to do it twice if its really bad.
i apologise for my ignorance, but is hot vinegar a product or do you buy the vinegar heat it up and spray it. another thing when you spray it how long do you leave it on the tarmac, assuming that you come along with a yard brush and brush it off. thanksw
Have you searched for this topic? I know there has been loads recently, as I myself have contributed to them. Use the search function and you will have some great answers.
Hello, what definitely works is a chemical called chloros (i think thats spelled right) Its great stuff although it has toxic qualities so be sure to wear face mask and gloves
If you have a steam cleaner like a Karcher that produces very hot water spray that will remove grass and moss from tarmacadam unless the tarmac is very badly worn and cracked