Discover the newest plant photos, tips and reviews from our users. There is one generation per year. Leaf loss, branch dieback, and tree death can result from severe infestations. If evidence of predation (scales chewed open) and parasitism (circular holes in scale covers) are present you may decide to monitor the populations rather than treat with insecticides or use a product with less impact on the beneficials. Armored and soft scales live beneath waxy covers that protect them from predators, parasitoids, and pesticides. A&T State University. They are convex, gray, and occur in dense patches (Figure 8). Crawlers migrate from leaves to branches where they feed and overwinter. Infestations are common on trees stressed by physical damage, drought, temperature, or improper planting. Verbascum thapsus. Because of the diversity of the population around the world, scale insects infest a wide array of plants, both in the garden, indoors, in greenhouses, and in forests, among others. It is relatively flat and gray. Plant identification by their leaves. — Read our NC State University and NC Honeydew is a major problem with this scale. Armored scales are typically small and inconspicuous. In contrast, soft scales secrete a waxy layer over themselves that cannot be separated from their body. Unlike what some people might think, scale is not the name of a plant disease. Many natural enemies help reduce scale abundance and damage. Scale insects can be difficult to get rid of but spraying with PLANThealth Spectrum and/or Organic Insect Control followed by Organic Super Spraying Oil is most effective, killing scale through suffocation. 2). N.C. Figure 3. Identification: At first glance, many scale insects look like a small, circular bump that's part of the plant. Armored scales live beneath a waxy cover that is not attached to the adult body. commitment to diversity. Some forms of scale are extremely flat and hard to identify. For more information on these species use links to their individual pages. Scale insects thrive in warm, dry environments. Cooperative Extension prohibits discrimination and harassment regardless of age, color, disability, family and marital status, gender identity, national origin, political beliefs, race, religion, sex (including pregnancy), sexual orientation and veteran status. The protective covers often blend well with plant bark so populations may become very large before being detected or a plant shows noticeable damage. Black sooty mold fungus often grows on this honeydew. For information on other armored scales search the Extension Resource Catalogue. There is one generation per year. Armored and soft scales live beneath waxy covers that protect them from predators, parasitoids, and pesticides. 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