As Big Island coffee farmers harvest their berries from trees, they are finding a new foreign beetle — the coffee berry borer — that at best threatens their bottom line. An estimated 600 to 700 coffee farms occupy a 22-mile stretch along the rocky, volcanic slopes of Kona, where dry winters and wet summers contribute to producing a premium coffee bean. The coffee berry borer, Hypothenemus hampei, is native to Central Africa and found in scores of coffee-producing countries, including South America. Thanks to Victor Kessler for the tip