Depending on how "into" this you are a way of naturally controling
weeds without chemicals is by learning about the Ecology and Biology
of the plant.

some examples.

- when the weeds are comming into maturity and beginning to flower and
set said, remove the heads. This will prevent more seeds being added
to the seed bank.

- If you can understand the life cycle of the specific weeds then you
can find out when its at ints weakest. This may be when new shoots are
sprouting. A bit of heat onto the leaves can often wilt the sappling
and they probably wont recover.

- Remove small patchs at a time so not to make to much room for other
weeds to invade as they may be harder to control

and also try to keep soil disturbance to a minimum. If you do use
tools in a weed filled section, a rquick rince may help to prevent the
transfer of seeds from the soil bank to your new and improving garden


Tim
Uni Student
http://www.angelfire.com/dc/stormeagle/index.html