Weed Killers - a synopsis of types & uses

For anyone puzzled about the various types and uses of weed killers here's a rather good link. I came across it this evening when looking for a source ( a cheap one!) for a residual herbicide.
I've still not found one!

http://www.dgsgardening.btinternet.co.uk/weedkill.htm

 

The nearest you will get nowadays I think is something like path clear. I expect there is something available to the professionals.

 

Thanks for your suggestions folks. I was thinking along the lines of Pathclear or sodium chlorate. My problem is that the area I need to treat is around 100 sq m and buying the stuff in the small quantities sold in garden centers/B&Q etc will cost a fortune!
The 'garden' in question is Mrs W's mum's. About 5 years ago we cleared what was a jungle and laid membrane and several tons of gravel, but because we can't keep a regular eye on it, weeds, mainly willow herb, keep germinating and seeding and while the weeds are very easy to pull out another crop follows shortly later. I need to put down a persistent herbicide to prevent germination.

 

.
Hi,
Sodium chlorate is almost completely useless. I used it on the parking area beside the the Church three years ago it managed to stunt some grasses and other minor weeds, nothing else. I had been given a very large tub of it. Some time later B&Q had Packs of Pathclear at half price so I got four packs.

I did the area again twice,and all the brambles and other woody weeds were gone soon after.
Since then there is usually some annual type weeds spring up, but Pathclear soon deals with them.

What had been an unuseable parking area, now is perfectly useable for parking and walking upon!

Cheers!

 

Path clear and sodium clorate are about the only good residuals sold for ameture use...... amonium sulphamate also if you can find it.

Even trade there isnt a lot of choice, I use a product called pistol it works for around 5 months on one treatment. Ill Pm you a link Dave.

 

Thanks Paul!

During my 'googling' I've discovered that sodium chlorate is due to be withdrawn from the market soon, so anyone that uses it best stock up!