Matters of Scale: Wax and Azalea Bark Scales
Wax scale (Ceroplastes ceriferus), also known as Indian wax scale, is a non-native pest established in the southeastern U.S. but now being found as far north as Long Island and Westchester County where it seems to be surviving winters with some regularity, both outdoors and especially under cover in nurseries. Azalea bark scale (Acanthococcus [Eriococcus] azaleae) is another exotic species probably established in much of the US. It overwinters regularly in the northeastern US and has been present for many years in NY. Descriptions, life cycles, hosts, and management of Indian wax scale and azalea scale are covered.
Cornell University Department of Plant Pathology and Plant-Microbe Biology
honeydew; sooty mold; cameo stage; dunce cap stage; felt scale
Previously Published As
Excerpted from Branching Out IPM Newsletter (2015), Vol. 22 No. 5