Skip to Main Content
Black Pineleaf Scale (FIDL)Author(s): Katharine A. Sheehan; Mario A. Melendez; Shana Westfall
Source: Forest Insect & Disease Leaflet 91. [Berkley, CA:] U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station
Publication Series: Forest Insect and Disease Leaflet (FIDL)
Station: Pacific Southwest Research Station
PDF: View PDF (9.57 KB)
DescriptionThe black pineleaf scale (Nuculaspis californica (Coleman)) belongs to a group of sucking insects called armored scales. Concealed under their protective shells, these scales insert their mouthparts into their hosts, removing sap and, possibly, injecting toxic enzymes secreted in the saliva. Armored scales are important pests of agricultural and ornamental plants; heavy infestations of black pineleaf scale can severely weaken or kill host conifers. Infestations are generally localized, sometimes in just a few trees, and are reported frequently in sugar and Monterey pines. Occasionally, however, epidemics cover several thousand acres of forest, and nearly every host tree in the area may be infested. Large areas of Jeffrey and ponderosa pines in northeastern and southern California, for example, have had recurring infestations since 1940.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSheehan, Katharine A.; Melendez, Mario A.; Westfall, Shana. 1998. Black Pineleaf Scale (FIDL). Forest Insect & Disease Leaflet 91. [Berkley, CA:] U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station
- Colonization behaviors of mountain pine beetle on novel hosts: Implications for range expansion into northeastern North America
- Suppression of Bark Beetles and Protection of Pines in the Urban Environment: A Case Study
- Western dwarf mistletoe infects understory Jeffrey pine seedlings on Cleveland National Forest, California
XML: View XML