BJP, I inquired as to why they claim 2+ years to go away and that they could slightly affect the PH of the soil as being "bio-degradable"...
The thing is that they are a "No Coal Tar Pitch" version... What you ol' timers have shot for ever contain "petroleum based" material. I understand that this was once used as a way to kill clay sports thus removing one more reason to be able to own guns.
And frankly, any time I can avoid returning petroleum products thru the topsoil I sure will.
Brent
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