Dubbs Hardware 12-Pack Pure Copper 4-Inch Nail Spikes - Heavy-Duty Tree Stump Root Killer - Eco-Friendly & Chemical-Free Tree Removal - USA-Made Durable Spikes for Landscaping & Gardening

As far as looking at these nails I just want them to be effective. Have not used them yet but will do soon. They are what was advertisedSo we shall see. I’ll write an addendum to this review later down the line.

Excellent quality

I have used these nails on three shrubs, same species. First one is showing signs it is not doing well with copper nail in it. The larger of the three shrubs (I cut them all down to the ground), has much resilience-it may taken more nails. The third is showing signs it needs more. I hammered these nails in late Fall of this year, so it will likely be Spring before the final results are in.

We purchased this to halt the tree stump roots attempt to grow a forest. Within a few weeks we noticed that all the existing shoots had shriveled and there were no new shoots coming up.

So I put all of these nails in the base of a stump about two weeks ago and there has been no change. As other reviewers have noted these nails are very soft so you need to either drill a hole or drive a steel nail into the tree before putting these copper nails in. I'm not sure how long they take to kill the tree/stump.

The specialized nails arrived quickly an undamaged.

These have not met any degree of expectation. I nailed them into a stump that was already ground down, almost a year ago, yet there continues to be growth. I cut all of the visible roots. It appears as though I need to have the stump ground down, 3-6 inches below the surface, so I can add soil and grow grass.

As expected. Haven't used them yet so don't know if/how it will work to kill tree stumps