On 7/9/2016 3:32 AM, herb white wrote:

I have a gravel drive about 10 ft wide and 500 ft long that has some
weeds coming up. What is best to use to control those weeds that will
not pollute the river? Thanks for any info.

Temporarily move the gravel aside. While doing that, scrape away the
existing weeds.

Get landscape cloth. Lay down a double layer of landscape cloth the
width and length of the driveway.

Restore the gravel over the landscape cloth. Add more gravel to create
a depth of 3 inches.

New weeds might sprout, but their roots will not penetrate the landscape
cloth or enter the soil beneath. You can either ignore those weeds as
they will soon die, or you can easily pull them. In the meantime, rain
and other water will go through the landscape cloth.

This works best if your driveway has some kind of edging to keep the
gravel in place and prevent weeds from sending runners under the
landscape cloth.

--
David E. Ross
http://www.rossde.com/.

Is it true that Donald Trump refuses to reveal his
income tax returns because he uses so many questionable
loopholes that he pays no taxes? See
http://www.thedailybeast.com/articles/2016/06/15/new-evidence-donald-trump-didn-t-pay-taxes.html.
Even if those
loopholes are legal, Trump might be too embarrassed to
admit he pays no taxes.