I've just noticed my neighbor laying black plastic on the ground under an old cherry tree and I was just wondering if this is going to interfere with the tree's water uptake. The plastic circles the tree in about a 7 foot radius, as well as 15 feet out another 2/3 of the way around it, under the drip zone. It's a lot of black plastic, and now it looks like bark mulch going on top. Will water get through to the roots? Is she inadvertantly killing the tree in order to keep weeds out of what appears to be a new flower bed going in? Will there be masses of slugs reproducing under it? Yikes!
karen portland, or