Adult vedalia beetles, Rodolia cardinalis (Mulsant), feeding on cottony cushion scale, Icerya purchasi Maskell. Photograph by Division of Plant Industry. Description (Back to Top) The cottony cushion scale can be distinguished easily from other scale insects in Florida. It is the only species of Icerya present in Florida. The mature females ...

Icerya purchasi (common name: cottony cushion scale) is a scale insect that feeds on more than 80 families of woody plants, [1] 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. Maskell "after the Rev. Dr. Purchas who, [he] believe[d], first found it", [2] it is now found …

Causton CE, 2003. Ensuring compatibility of biological control of Icerya purchasi Maskell with conservation in Galápagos: development of a procedure to evaluate risk. In: Van Driesche RG, ed. Proceedings of the First International Symposium on the Biological Control of Arthropods, Honolulu, Hawaii: USDA Forest Service, FHTET-03-05, 148-157.

Reproduction.Icerya purchasi is a functional hermaphrodite, that is, an adult has both male and female reproductive organs and is capable of self-fertilization which eliminates the need to mate with other individuals of the same species.The first instar crawler has paired gonads comprised of female and male parts. In the second instar larva, the reproductive cells are divided into two …

One such pest is Icerya purchasi Maskell (Hemiptera: Monophlebidae). Icerya purchasi , also known as the cottony cushion scale, is a cosmopolitan pest native to Australia and New Zealand and is known to have affected over 200 different plant species [ 18 ].

The cottony cushion scale was described by Maskell (1878) from specimens sent to him by Dr. Purchas from Auckland, New Zealand. The host was kangaroo acacia and the insect was named for Dr. Purchas. At that time only one other species …

Icerya purchasi Maskell, 1879 Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Maskell, William M. 1879. On some Coccidae in New Zealand. Transactions and proceedings of the New Zealand Institute 11(2): 187-228. Classification kingdom ...

2022年5月25日 · Icerya purchasi Maskell 1878. Range . s US and up the Atlantic seaboard - Map ; native to Australia. Food . Hosts include many plants, though in FL Citrus and Pittosporum (Pittosporaceae) are most commonly affected - UF. Remarks . The white fluted part of the insect is an egg sac that can contain up to 1000 eggs. The insect is hermaphroditic ...

Common Name: Cottony cushion scale Scientific Name: Icerya purchasi Maskell (top), Dactylopius sp. Costa, bottom. Order: Homoptera Description: Adult female scale has a fluted cottony egg sac secreted from the body of the scale. Other Homoptera produce massive quantities of white wax, including some species of aphids, mealybugs, whiteflies and other …

Family. Monophlebidae. Species name Icerya purchasi (Maskell) Common name. Common white cottony cushion scale. Field characters. Body red, legs and antennae black, covered by layer of white to cream colored wax, median area sometimes with lemon yellow wax, marginal areas with fringe of wax processes all about same length; margin of body with long crystalline rods.