The nine Engelmann Spruce trees had been dead for less than three years, were about 26-36 inches in diameter at shoulder height and estimated to be 100-125 feet tall, according to the plaintiffs.

The nine Engelmann Spruce trees had been dead for less than three years, were about 26-36 inches in diameter at shoulder height and estimated to be 100-125 feet tall, according to the plaintiffs.

Spruce aphids have been in Oregon since the 1920s and primarily feed on the coast and measure about 2 millimeters in length. They are found in the western part of the state year-round.