The Hood River County Commission will hold a public hearing on October 13 to discuss an ordinance to tax medical and recreational marijuana.  Legalizing recreational marijuana is the subject of Measure 91 on the Oregon ballot in November.  That measure includes language pre-empting cities and counties from establishing this kind of tax, and County Administrator David Meriwether notes a number of counties and municipalities in the area are considering this kind of ordinance before the vote takes place.  The City of Ashland has already passed an ordinance to place a five percent tax on medical marijuana and ten percent on recreational pot.  Hood River County currently has a moratorium in place against the establishment of medical marijuana dispensaries.  The hearing will take place October 13 at 6 p.m. in the County Administration Building.