Pest description and crop damage The cottony camellia scale is a flat, brownish or yellowish insect. Some infested leaves may be out of reach. Symptoms The scale does not usually affect the vigour or flowering of it's host plants, it does however produce a sticky honeydew excrement. Cottony camellia scales, Pulvinaria floccifera, are cream to tan, elongate oval, and relatively flat.They are also called cottony taxus scales as this scale is a fairly common pest of yew. Scale insect control. Several applications of a horticultural oil spray, such as Volck Oil, Superior Oil or Year Round Spray Oil to name a few brands, should do the trick. Icerya purchasi (common name: cottony cushion scale) is a scale insect that feeds on more than 65 families of woody plants, most notably on Citrus and Pittosporum.Originally described in 1878 from specimens collected in New Zealand as pests of kangaroo acacia and named by W.M. Foliage with scale infestations may turn yellowish or pale in color. Cottony camellia scales, Pulvinaria floccifera, are cream to tan, elongate oval, and relatively flat. But this scale insect that attacks our ornamentals at this time of year is anything but that. Damaged plants show more symptoms … Notice the older leaf in the lower left has white speckling on the topside, indicating scale sucking insects are massed on the underside. It is also known as cottony taxus scale. Male tea scales are white. Camellias are a favorite cool-season bloomer, but while you are enjoying their beauty keep an eye out for signs of damage. Scale insects come in many types, but here are a few of the most common. Treatment often includes a systemic insecticide, applied strictly according to the manufacturer's instructions. Answer: That's an insect called tea scale. Champagne, NOLA.com| The Times-Picayune archive), A question for Dan Gill: I have a camellia bush that has a white powdery substance all over the leaves. Orginal publication: 6-22-2009 Latest update: 11-14-2017. A: It’s cottony camellia scale. Scale. Prevention and Treatment: Prevent sunscald by planting in a shadier location or providing more shade to their present location. Turn over the leaves and you'll spot white and brown specks attached to the undersides. Both the insect’s common and scientific names allude to the woolly, white wax it produces as a protective case, or ovisac, around its eggs. Non-pesticide control . In some cases, premature loss of foliage may result from an infestation of this soft scale insect. Cottony Cushion originates from Australia and is rumored to have come to the US by accident in the late 1800’s on a plant shipment. Systemic insecticides, such as acephate and imidacloprid, will kill scales, but what if you'd like a more "natural" solution? Scale insects belong to a large group of sucking insects that attack a wide variety of trees and shrubs. Cushion scale is a sap-sucking insect that feeds on the foliage of mainly evergreen trees and shrubs, especially camellia, rhododendron, Trachelospermum, Euonymus japonicus and holly. Algal leaf spot (Cephaleuros virescens)shows up as silvery-grey, green, or tan raised spots or blotches with green margins that are located on leaves. Camellia tea scale treatment. Another treatment is to mix light horticultural oil with some warm water in a ratio of one part oil to one part warm water. PNW Insect Management Handbook. Email questions to firstname.lastname@example.org or add them to the comment section below. Scale insects belong to a large group of sucking insects that attack a wide variety of trees and shrubs. You have permission to edit this article. 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