Difference between revisions of "Aonidiella aurantii"

Revision as of 18:35, 17 March 2014

Aonidiella aurantii male and female (click on image to enlarge it)
Author(s): Dennis Navea
Source: IPM Images

Aonidiella aurantii (Maskell, 1879) - (citrus red scale)
is a wide-spread and polyphagous pest which attacks citrus, almond, grapevine, pear and other crops. Severe infestations cause leaf yellowing, dieback of branches and occasionally tree death. Light infestations on citrus cause cosmetic fruit damage with results in downgrading of the fruit quality. Biological control agents have been introduced into many counries, but have not always been sufficient in keeping the scales below an economic threshold.

Dispersal of the scale occurs in the crawler stage by wind. The shield of the female is circular, brownish-red and 1½-2 mm in diameter. The life cycle from the crawler stage (the eggs hatch internally in the female), through 2 nymphal stages, to the adult stage lasts about 6 weeks. The male nymphs have a slightly smaller shield. The winged adult males only live for a few hours.

Synonyms:
Aspidiotus aurantii

For details see the respective page in Wikipedia.

• Other images of Aonidiella aurantii (PaDIL - click to enlarge)
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  pydigium

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