[fusion_builder_container hundred_percent=”yes” overflow=”visible”][fusion_builder_row][fusion_builder_column type=”1_1″ background_position=”left top” background_color=”” border_size=”” border_color=”” border_style=”solid” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”no” center_content=”no” min_height=”none”] Wine grape growers in Mattawa and the Yakima and Columbia Valleys were concerned in the summer of 2005 to find their vine leaves turning a bronze color. In extreme cases, the leaves turned black and dropped prematurely. A researcher at Washington State University’s Irrigated Agriculture Research and Extension Center in Prosser said the damage was caused by grapeleaf rust mites, a pest that may have been present for a while before being detected last year. Dr. […]