Question: HI - IN JUNE THIS YEAR, I NOTICED BROWN SPOTS ON AN OTHERWISE VERY HEALTHY BOSTON IVY. I HAVE HEARD ONE CAN SPRAY A MIXTURE OF DISH SOAP AND WATER TO KILL WHATEVER IS CAUSING THE DAMAGE. IS THAT TRUE AND IF SO, WHAT RATIO OF WATER AND SOAP WOULD BE EFFECTIVE? IF THAT WILL NOT WORK, PLEASE ADVISE.
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