Cinchona pubescens In the second trial, a picloram and metsulfuron solution was 100% successful in concentrations greater than 4% solution. In the third trial, picloram- metsulfuron solution of 10% concentrations or higher was successful in eradicating the tree. Cinchona pubescens Cinchona pubescens, also known as red cinchona and quina (Quechua) ( "Cascarilla, cinchona"; "quina-do-amazonas, quineira"), is native to Central and South America. It is known as a medicinal plant for its bark's high quinine content- and has similar uses to "Cinchona officinalis" in the production of quinine, most famously used for treatment of malaria. "C. pubescens" varies from small to large in
Christmas tree production in the United States million Christmas trees valued at approximately $120 million. The majority of Christmas tree production occurs in the Willamette Valley region including Benton, Clackamas, Marion, Polk and Yamhill counties. In 2015, Washington State had approximately 250 Christmas tree farms with a combined 23,000 acres, yielding 2.3 million Christmas trees valued at approximately $35 million. The majority of Christmas tree production occurs in the western and southern portions of the Puget Sound region including Kitsap, Lewis, Mason and Thurston counties. Aside from Pennsylvania, several U.S. states in the Great Lakes region are key Christmas tree producers. The two most important production areas