Cottony Cushion Scale
EntdeckenInsekten
Cottony Cushion Scale
icerya purchasi
The Cottony Cushion Scale (Icerya purchasi) is a notorious scale insect originally native to Australia, but now found globally. It is famous for its devastating historical impact on citrus orchards, which ultimately led to one of the most successful biological control triumphs in entomological history. These tiny sap-sucking insects form dense colonies on the branches, twigs, and leaves of their host plants, draining vital nutrients and secreting sticky honeydew.
Lebensraum: Found in warm-temperate and tropical regions, typically on citrus trees, ornamental shrubs, and woody plants in agricultural areas and gardens.
Aussehen
The adult female Cottony Cushion Scale is easily identified by her distinctive white, elongated, and deeply fluted egg sac, which is made of a waxy substance and can reach up to 1.5 centimeters in length. The insect's actual body is relatively small, reddish-brown, and nestled at one end of this prominent, cottony sac. Immature nymphs, or crawlers, are bright red with dark legs and antennae, lacking the massive white waxy coating of the adults.
ReichAnimaliaStammArthropodaKlasseInsectaOrdnungHemipteraFamilieMonophlebidaeGattungIcerya
Kategorie
InsektenSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
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Interessante Fakten
Almost all individuals are hermaphrodites that fertilize their own eggs, while pure males are extremely rare and develop from unfertilized eggs.
Ants will actively farm and protect these scales from predators in exchange for the sugary honeydew they secrete.
The large white 'cushion' on the insect's rear is not its body, but an empty wax sac designed solely to shelter up to 1,000 eggs.
This species was the target of the world's first highly successful classical biological control program in 1888, saving the California citrus industry from collapse.
Besondere Fähigkeiten
Fähigkeit
Waxy Armor Construction
It secretes a dense, ribbed, white waxy ovisac that protects its eggs from both predators and environmental dehydration.
Fähigkeit
Hermaphroditic Reproduction
Most individuals are self-fertilizing hermaphrodites, allowing a single scale insect to rapidly colonize a new host plant without needing a mate.
Fähigkeit
Honeydew Secretion
It excretes excess plant sugars as sticky honeydew, which attracts protective ants and fosters the growth of sooty mold.
Maße und Details
- Länge
- 1+ cm
- Gewicht
- 0.00001+ kg
- Lebenserwartung
- 0+ Jahre
- Gelegegröße
- 500+
- Brutzeit
- 10+ Tage
Ernährung und Fütterung
Feeds on the nutrient-rich phloem sap of various woody host plants, particularly citrus and acacias.
Altersunterschiede: Crawlers seek out thin leaf veins, whereas mature females settle permanently on larger twigs and branches.
Hauptnahrung
- Citrus sap
- Acacia sap
- Pittosporum sap
- Rose sap
Nahrungssuche
- Grazing
Ökologische Zusammenhänge
eaten by
Vedalia Beetle
Rodolia cardinalis
The Vedalia beetle is a famous predator introduced globally to control cottony cushion scale populations.
parasite
Parasitoid Fly
Cryptochaetum iceryae
A tiny parasitic fly whose larvae develop inside the scale insect, acting as an effective natural control agent.
host plant
Sweet Orange
Citrus sinensis
The primary host plant where the scale insect feeds on phloem sap, often causing leaf drop and branch dieback.
Merkmale
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Sicherheit
Gefahr
1/5 · Sehr gering
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Häufig gestellte Fragen
Wie identifiziert man Cottony Cushion Scale?
Der einfachste Weg, Cottony Cushion Scale zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Cottony Cushion Scale?
1+ cm
Was ist der/die/das gewicht von Cottony Cushion Scale?
0.00001+ kg
Was ist der/die/das lebenserwartung von Cottony Cushion Scale?
0+ Jahre
Was frisst Cottony Cushion Scale?
Feeds on the nutrient-rich phloem sap of various woody host plants, particularly citrus and acacias.
Wo findet man Cottony Cushion Scale normalerweise?
Found in warm-temperate and tropical regions, typically on citrus trees, ornamental shrubs, and woody plants in agricultural areas and gardens.
Wie jagt Cottony Cushion Scale?
Grazing
Was ist der/die/das gelegegröße von Cottony Cushion Scale?
500+
Snap-Karte
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Neueste Snaps
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