California fan palms, Washingtonia filiera, with diamond scale caused by Phaeochoropsis (=Sphaerodothis) neowashingtoniae typically have a reduced canopy of leaves.

California fan palms, <i>Washingtonia filiera</i>, with diamond scale caused by <i>Phaeochoropsis neowashingtoniae</i> typically have a much-reduced canopy of leaves.; San Diego County, CA Credit: Donald R. Hodel, UCCE Los Angeles County
California fan palms, Washingtonia filiera, with diamond scale caused by Phaeochoropsis (=Sphaerodothis) neowashingtoniae typically have a reduced canopy of leaves. Credit: Donald R. Hodel, UCCE Los Angeles County