[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”] Puncturevine, a noxious weed to farmers and a nuisance to urban dwellers, continues to spread throughout north central Washington. With efforts to control the weed biologically a failure, it will take persistent, chemical spraying to halt its unwanted reach, says a weed control specialist. The annual weed grows in a prostrate, matlike manner and can reach five to seven feet in diameter. Underneath the mat are hard, spiny burs that can lay dormant in the soil […]