Killing bamboo with Roundup
I live in a rural area of NY, zone 5-6 and have been growing a running variety of bamboo for 10+ years. I don't know the variety. It's around 15' high now and the grove is around 50'x100'.
There are several issues. First, I have my power lines and propane line running under the bamboo. (One reason I planted it in the first place was to shield the propane tank from view.) The rhizomes I've dug haven't been very deep. Generally a foot to 18". The soil is fairly shallow here but I think the contractors put the electric and propane lines as deep as they could get them, probably three feet. Is there any danger posed by the bamboo to these lines?
How about if the bamboo rhizomes get near to our well head? ItÂs 20Â away from the patch.
Secondly, the bamboo comes 20Â or so from a rock wall thatÂs my boundary line. ThereÂs nothing but forest and field on the other side, but I want to keep the bamboo from getting loose. IÂve begun to trench it. For the rhizomes that have gone beyond the trench, IÂve been thinking of waiting until fall, cutting the rhizomes and painting the ends of the parts that I want to die with Roundup. IÂve heard about cutting the rhizomes to kill them and IÂve also heard of using Roundup either to spray the leaves or paint the roots, in order to kill whole patches. But IÂve never read of anyone cutting the rhizomes and then using Roundup to insure they will die in the ground. Any opinions whether this might be more effective than just cutting the rhizomes?
On the lawn side IÂm going to cut the shoots and cook them. In fall should I also cut the rhizomes or will mowing keep them generally in check?
I would like the existing culms to get as much energy as possible. The parent grove had 35Â culms two or more inches in diameter. If the rhizomes run under the ground will that provide more energy to the existing culms without destroying the lawn or nearby trees?
There is shrubbery and trees close to the bamboo patch. I have two plum trees and an Asian pear right next to the patch. IÂm sure the bamboo rhizomes are fully intertwined with their roots by now. ThereÂs also a maple 15Â or so feet from the patch. Will the bamboo eventually kill these trees?