Answer #2 ·
Gardenality.com's Answer · Stephen is right. Bamboo is one of the most difficult plants to eradicate. For most people, the easiest method is the one Stephen described. You can prune the shoots to about 6 inches above the ground and, then, within 15 seconds of making your cut, paint on an undiluted herbicide containing at least 41% glyophosate, such as super-concentrate Killzall or Glyphosel. This method works pretty good if you have a small stand or just a few shoots of bamboo.
If you have running bamboo covering a large area it may be necessary to dig it out to a depth of 18 inches or so with a larger piece of equipment such as a backhoe. Then, to contain any remaining rhizomes (roots) that were missed, you'll have to dig a 30 inch deep ditch around the entire bamboo grove area. This ditch will need to be filled with concrete or a steel or heavy plastic barrier to contain the rhizomes and keep them from spreading. This is a major undertaking and can be quite expensive. Problem with digging the bamboo, if it's growing among desirable plants or trees, such a your pine trees, digging it out this way could damage the roots and possibly kill these trees.
Another way to eliminate bamboo shoots is to burn them to death. But this method could also damage your pine trees or other plants sharing the area with the bamboo. To do this, during the hottest part of summer, cut down the bamboo shoots to a few inches above the ground. Then spread generous amounts of ammonium nitrate fertilizer over the entire area where the bamboo is growing. You want the fertilizer to just about cover the ground. Then cover the entire area with transparent plastic film, using rocks or something heavy around the edges and towards the interior to hold the film down. After a few days, the bamboo shoots will be cooked from too much heat, the high-power nitrogen fertilizer, and a lack of oxygen. After a few weeks, when it appears all the bamboo shoots are dead, you can remove the plastic film. It would still be a good idea to dig up the dead bamboo shoots just in case there are some remaining live rhizomes that could shoot up new growth.
If it were me, I'd try the herbicide method first. Then maybe the cooking method but, remember, this method can and will kill desirable plants and as well. You might have a year long or more battle on your hands but, if you stay persistent, you can win. Worst case scenario, or as a last resort, contact an arborist or a company that specializes in eradicating invasive plants.)