Leave it alone and enjoy its beautiful blue flowers.

"Very nasty" weeds are things like japanese knotweed and giant hogweed. Speedwell is just a bit player IMHO. If you don't like it (and I'm with Grandadan) just mow the lawn more often.

Well said, Grandadan . . . it's such a pretty flower.

it responded to lawn weed and feed in our grass 2 yrs ago, though I do have a small section that is left for the rabbits to nibble and it is still there. I love it, there are many different species too. they are in the genus Veronica.

Lawn weed and feed usually works, but you have to be rigorous and apply it every 6 weeks from April to July, fitting in 3 applications. Alternatively, you'd need to dig it out and reseed

If you're prepared to use chemicals use Verdone Extra on the lawn once it starts growing again in spring. It is very effective on weeds that normal weed and feeds won't kill.

Nice to know its still available, Anchorman, I thought they'd withdrawn it!

It was available at my wholesalers when I visited last week. I better get some more in as it is the only thing that works on some weeds in lawns.

Verdone Exytra Lawn weed killer (contains fluroxypyr, clopyralid and MCPA) I have used this but do you know of a problem with this product Bamboo?

Sounds like taking a sledgehammer to crack a nut--or in this case, a pretty wildflower that doesn't realise it's causing offence by daring to grow in a lawn!
It attracts early bees but can easily be mown out if you really hate it that much :)

One persons pretty wild flower is another persons thug!

I love daisies in my lawn but some of my customers would kill me if I allowed them to grow in theirs!

I also love clover but lay down the law with dandylions!

I dont use it for just one weed PennyF but I have so many worm casts and other damage that I get a lot of weeds growing each spring. I dont see the point in putting down to turf if it becomes a weed patch and I have woodland/open parts to my garden where self seeders can grow.

DRC, not as far as I know, although of course all those chemicals cause some harm, it just depends how much harm! Bit like medicinal drugs, there's usually a price to pay, isn't there. Just that the EEC has withdrawn a lot of products we used to have on the shelves in the last few years, such as Roseclear 3, malathion, sodium chlorate.

I find I cannot keep up with it all Bamboo? so much in the way of garden chemicals have been withdrawn as they are now known to be more of a risk than first thought. Although I use very few chemicals things such as weeds and Blackspot are not always kept under control without them. But I refuse to use anything on my veg apart from soapy water.

One of the reasons I don't like roses is the impossibility of keeping them healthy and glowing without the use of chemicals - between black spot and mildew, you'd end up using Roseclear every fortnight through the season. Way too much use of chemicals, so roses are out, and lord knows what people will use now its not there any more. Malathion is, as far as I know, the only product which treats Phormium mealybug too, and I wasn't averse to its use once a year, its all a question of quantity really. Fortunately, I do have a bottle of Roseclear, which I use about once a year for mildew/aphids on various plants, and a very small amount of malathion left...

I have noticed recently that of the 7 the roses I planted last year 4-5 have blackspot. I will see how it goes next year re control - if not they will have to go.