Okay, Ken, this is fascinating. But I'm confused. So all this time that I've been adding used coffee grounds to my planting holes in hopes of increasing the acidity in the soil, it wasn't really doing that? I should have been pouring my leftover coffee on them instead? Okay... So how do I make the spray for aphids/whiteflies with coffee grounds? Do I steep them in cold water? I apologize for being a pest, but I really want to understand this issue.
And now you know how my grandson feels when I call him with a computer problem. :roll eyes:
Thanks for your patience.
