A very destructive scale insect (Aspidiotus perniciosus) that infests the apple, pear, and other fruit trees. So called because first introduced into the United States at San Jose, California.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). san jose scale. Retrieved September 26, 2026, from http://smartdefine.org/san_jose_scale/definitions/2057726 |
| Chicago | Webster's. 2011. "san jose scale" http://smartdefine.org/san_jose_scale/definitions/2057726 (accessed September 26, 2026). |
| Harvard | Webster's 2011, san jose scale, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/san_jose_scale/definitions/2057726>. |
| MLA | Webster's. "san jose scale" 28 May 2011. Web. 26 September 2026. <http://smartdefine.org/san_jose_scale/definitions/2057726> |