NORTH GRENVILLE The 50th year of Johnston Brothers Christmas Tree Farms will see a change in ownership of the business located south of Kemptville.Brothers and current owners Eric and Pud Johnston, born and raised in Prescott by Arthur and Violet Johnston, will hand over the reins to Pud's 33year-old son, Kerry, after the Christmas season.We'll keep helping but Kerry (of Brockville) will take It over,' run says,we wanted to make it 50 years. We could run it for a while yet but he can make the decisions now.'Eric traces his interest in the business back to when the boys were growing up, when their father worked at customs and noticed a large amount of Christmas tree traffic going in and out of the country.more...See more text