Have watched this company for several years and hope for the bet for them; you planted a beautiful pine tree line not too long ago and it seemed to be doing well! Now you have added a noxious weed, and this used to be illegal to do and still should be, your pines are dying. You need to take out the Russian Olives and if you do not believe me, then get a Search engine going and read! They take water away and 2x more than our native trees to survive..they take nutrients from the ground and more. You will lose all of your pines if you do not for they will and can pull for many feet away from another plant, tree, etc. Too, pines clean 2x as much as an Olive tree does.