posted 7 years ago
Thank you for bumping this post Mike. Sorry I missed it before.
Juglone is an exudate, it is produced, when competing plants are around, it isn't produced in quantity when all the roots are from the same species, apparently the roots recognize same species and accept them.
Roots that are in or very near the water table generally specialize in water intake, these roots will have more "straws" in their make up than roots involved more with mineral uptake.
I doubt that using pond water would have any ill effects on your garden.
Redhawk