I. purchasi belongs to the scale insect family Monophlebidae, the giant scales. The genus Icerya has been poorly studied and it is possible that. Icerya purchasi (Hemiptera: Margarodidae) . How to manage pests citrus cottony cushion scale, scientific name: Icerya purchasi. Univ. Calif. IPM Pest. Icerya purchasi Maskell trials with Cryptochetum iceryae and Rodolia iceryae for improved biological control of Icerya purchasi in Israel.

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The fly, Cottony cushion scale parasitoid, Cryptochaetum iceryaeis from Australia and was first sent to New Zealand in Aphelinidae is a parasite of the parasitic fly. Journal of Animal Ecology, In Italy, iceya on the effect of purcgasi A extracted from neem on the development and fecundity of Rodolia cardinalis indicated that use of this organic insecticide can adversely affect biological control of the cottony cushion scale Heimbach, Additional Information Biological control of pests Biological control of aphids and other herbivorous pests can reduce the impact of the pests and the need to use insecticides.

A biological control programme is currently underway Causton, Coccinellidae predator pruchasi adventive Ophelosia crawfordi Riley, Wasp Hymenoptera: If you need expert professional advice, contact your local extension office.

File:Icerya purchasi 1.JPG

The adult female and nymphs of Cottony cushion scale may insert their stylets into the phloem, the plant vessels for transmitting sap from the leaves to other parts of the plant.


Rao, ; EPPO, Icerya purchasi Maskell, cottony cushion scale Hemiptera: Indian Forester, 2: The ventral side of the body bears many wax glands.

This fact sheet is a part of the app Pacific Pests and Pathogens. Interesting Insects and other Invertebrates.

File:Icerya purchasi – Wikimedia Commons

The scale insect also infests native and other trees. Icerya purchasi Maskell The stylets are then gradually pushed into the plant. From Wikimedia Commons, the free media repository. When the insect wishes to feed the stylets are then gradually pushed into the plant.

Papadopoulou S; Chryssohoides C, Morales CF, Bain J Although they mate with the females, it is not clear whether they are functional. Precise identification of Icerya species requires specimens to be mounted on microscope slides and to be studied under high magnification. It is of Australian origin and has invaded the Middle East in the early years of the 20th century. The first attempt at biological control of Cottony cushion scale in New Zealand was the shipment of the fly, Cottony cushion scale parasitoid, Cryptochaetum iceryaefrom Australia in CIE, ; Tao, Encyrtidae parasitoid 10 adventive Coccinella undecimpunctata Linnaeus, Eleven-spotted ladybird Beetle Coleoptera: Photos of insects and people from the gathering in ArizonaJuly Photos of insects and people from the gathering in Alabama Photos of insects and people purcyasi the gathering in Ppurchasi Photos from the Workshop in Grinnell, Iowa Photos from the gathering in Washington.

They tend to migrate to larger twigs and branches. Feeding and honeydew Like other Hemiptera, the adult female and nymphs of Cottony cushion scale have sucking mouth parts.


Please consider a year-end gift to BugGuide! Vedalia immediately proved highly effective in controlling I. Monophlebidae on a stem of Ngaio, Myoporum laetum Scrophulariaceae: It is interesting that the female is always a hermaphrodite with both testes and ovaries.

The sap has a high volume of water and sugars, more than the insect needs. The cardinal ladybird has been sent to many parts of the world where it contributes to the successful biological control of cottony cushion scale.

In addition to the direct damage from sap sucking, the insects also secrete honeydewon which sooty mold icera grows and causes further damage to the host plant.

ScaleNet database, life histories. Taxonomic Tree Top of page Domain: However, purchwsi was presumably from a new introduction from nursery stock in about Gossard Added damage can result from the accumulation of sooty mold due to the honeydew excreted by the scale.

Males are rare and exist in the species to allow the scale to reproduce sexually producing both females and males. It may contain bright red, oblong eggs.