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cottony cushion scale

Icerya purchasi

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Field Notes

Description:

A very small insect about 6 mm body length with tiny yellow mites.This scale infests twigs and branches. The mature hermaphrodite is oval in shape, reddish-brown with black hairs, 5 mm long. When mature, the insect remains stationary, attaches itself to the plant by waxy secretions, and produces a white egg sac in grooves, by extrusion, in the body which encases hundreds of red eggs. The egg sac will grow to be two to three times as long as the body. Newly hatched nymphs are the primary dispersal stage, with dispersion known to occur by wind and by crawling. Early stage nymphs feed from the midrib veins of leaves and small twigs, and do the bulk of the damage. At each molt, they leave at the old feeding point the former skin and the waxy secretions in which they had covered themselves and from which their common name is derived.

Habitat:

Inhabits on divers plant leaves.

Species ID Suggestions

Comments (5)

Sckel not here 8>] You're probably right though. Here's one opened with nymphs escaping and a predatory ladybird feasting. http://www.projectnoah.org/spottings/8536961
Hi Sckel. I think the little yellow guys are just hatched nymphs and not mites. You can see the antennae of some of them. Great pictures.
Yes they like citrus. Sorry we sent them over there. Aussie pests.
Thank you Mark , I'm sure you were right. I found it on a citrus plant leaf.
?Maybe Icerya purchasi - Cottony cushion scale - https://en.wikipedia.org/wiki/Icerya_purchasi
Photographed
PublishedApril 13, 2014

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