Summary[edit] Description: English: The needle deformation shown in the picture is caused by the aphid Mindarus abietinus on a Bulgarian fir (Abies borisii-regis). Mindarus abietinus is found on several spieces of the genera Abies, Picea and Juniperus. Date: 8 August 2015, 17:23:47. Source: Own work. Author: Forloid.