[amurdin]

We have just taken over another allotment plot (after finally getting to grips with our first), it is a large plot which is quite overgrown by all sorts of weeds and grass, was planning to spray it with glyphosate , but will it be best to cut it all down abit first so we can spray nearer to the ground or just spray as it is ?? or is there any better way?

Thanks 

[DD.]

It's absorbed through the leaves, so if you cut them all off,  the weeds won't absorb any!

[Yorkie]

I would strim it, allow some regrowth and then spray - or otherwise spray immediately.

It only works on active growth, so if you strim it right down to the ground immediately before application, there won't be any leaves to absorb the chemicals and it won't work.

You can use things like weed suppressant fabric or heavy duty cardboard to cover areas as an alternative to spraying if you wish.

[Salmo]

Definately do not cut it down.

Follow the instructions on the bottle and you will get good results. Especially important is the 6 hours of dry after application.

A good way to apply glyphosate is with a watering can and dribble bar. These are available at your local garden centre and avoid drifting fine droplets that you get from a sprayer on to other crops.

After about 10 days the glyphosate will have penetrated right into the roots and you can cultivate whether the plants are showing yellowing symptoms or not.

If more green leaves appear after you have sprayed, you have either missed a patch, or there were weeds that had no green leaves at the time of spraying. They will need a second application.

[amurdin]

very helpful, cheers  all