What would make my bush go from wine colored to light green? So upsetting! 

I have found this pure white growth only at the base of two red oak trees (out of many) on my property. It appears to be a fungus growing only and entirely around the base of the tree, and a bit on the ground surrounding the tree. Is this a harmful fungus for the tree? What is it, and should I attempt to kill it?

We have a couple of patches of what appears to be Japanese Knotweed that we have failed eliminate in the past. Can you recommend someone who be certified to properly remove them without or with the least possible use of herbicides? Thank you - Anne Woiwode 517-974-2112

Our cottage is in Benzonia Township and there has never been a properly seeded lawn. We have put in a new well, septic tank and leech field which has created an oasis of sand with patches of weeds. We want to plant a durable turf covering an acre or so that can survive in sandy soil. We're hoping not to bring in multiple yards of black dirt but will do it If that is your advice. What seed types and percentages, preparation and irrigation assuming we proceed next month (September). Thanks much. 

We have a long row of Pine trees that are beginning to crowd one another. We have culled a few rows years and years ago and the result was that the remaining pines became healthier and were able to stretch out. Just wanting some confirmation that this is a viable and sound practice for the remaining pines. If there is another option I am all ears. Thank you very much.