1. UC IPM
California fan palms, <i>Washingtonia filiera</i>, with diamond scale caused by <i>Phaeochoropsis</i> (=<i>Sphaerodothis</i>) <i>neowashingtoniae</i> typically have a reduced canopy of leaves.
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