Heavy infestations may cause leaves to turn light green in spring (Figure 1). Cottony Cushion Scale had taken over, right under my nose! Cottony cushion scale, Icerya purchasi, can infest a number of woody ornamentals and certain crops ().Common hosts in California are citrus, cocculus, nandina, and pittosporum. Distribution References. It is a polyphagous insect with more than 80 host plant species belonging to 35 families and is considered a serious pest of fruit trees and ornamentals in many parts of the world, especially in countries with tropical and subtropical climate. Biological studies of the cottony camellia scale, Puvinaria floccifera (Hemiptera: Coccidae) with updating lists of host plants and natural enemies in Egypt. Cottony camellia scale is a sap-feeding insect that infests camellia, holly, yew, euonymus, and maple. The most important part of scale insect control is timing. Pulvinaria floccifera (Westwood, 1870) (Cushion Scale, Cottony Camellia Scale) Try using insecticidal soap. If there are lots of scale in one spot, they secrete enough honeydew to cover nearby leaves with “syrup” on which black mold will grow. Scale insect control. Mobile crawlers hatch from the eggs, disperse to a suitable leaf vein, and begin to feed. Cottony cushion scale females have both male and female sexual organs (hermaphrodites) and can produce female offspring asexually through parthenogenesis.Eggs (600 - 800) are contained within an ovisac attached to the body of the female. This insect attaches itself to the bottom of holly leaves and sucks sap. But this scale insect that attacks our ornamentals at this time of year is anything but that. Mix about 5 tablespoons of insecticidal soap or a very mild dish soap into 1 gallon (3.8 L) of water. Q What is cushion scale?. Abd-Rabou S, Aly N, Badary H, 2012. Adults can be found on the branches or trunks of trees. 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. Its cottony egg sac and profuse honeydew production make cottony cushion scale easy to spot in the landscape. Cottony Camellia Scale preferred: UKSI Classification unranked Biota kingdom Animalia phylum Arthropoda subphylum Hexapoda class Insecta order Hemiptera family Coccidae genus Pulvinaria species Pulvinaria floccifera ... Use our online forum to join the conversation about nature in the UK. Control measures must be timed to coincide with hatching of the crawler stage which usually occurs in early summer for cottony scales. A: It’s cottony camellia scale. The easily overlooked flat… A Cushion scale is a small, mostly immobile, sap-sucking insect (Pulvinaria floccifera) that attacks a range of outdoor plants.. Caption: Cushion scale often attacks camellias and causes sooty mould Q What plants does cushion scale affect?. 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