Archips rosana

(Linnaeus, 1758)

Rose Tortrix, Rose Tortrix Moth, Rose Leaf Roller

Archips rosana, the rose tortrix , is a moth in the distributed across the Palearctic and Nearctic realms. The is a significant agricultural pest of apple orchards and other fruit , with feeding within rolled leaves. are active from May to August, with specific timing varying by location. The species is subject to substantial by , with parasitisation rates reaching 24-40% in some .

Archips rosana by (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block. Used under a CC-BY license.Archips rosana by (c) Nick Block, some rights reserved (CC BY), uploaded by Nick Block. Used under a CC-BY license.Archips rosana (2943522485) by Donald Hobern from Copenhagen, Denmark. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Archips rosana: //ˈɑːrkɪps roʊˈsɑːnə//

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Identification

Distinguished from similar by the combination of sinuate , irregular extending beyond the middle of the , and orange-tinged . The is identified by its dark olive-green coloration with tubercular spots and characteristic blackish plate on 2 with whitish margin. may be separated from Archips purpurana and other congeneric by forewing pattern details, though examination may be required for definitive identification.

Images

Appearance

Wingspan 15–24 mm. with sinuate, vertical ; from base to beyond middle, irregular and light , sometimes reddish-tinged, darker and strigulated in female. spot near base present. edge of central sinuate. Suffused emits interrupted darker brown, sometimes nearly obsolete in female. Dark strigulae present. grey, usually more or less orange. dark olive-green with darker dorsal ; tubercular spots ; brown; plate of 2 blackish, anteriorly whitish.

Habitat

Apple orchards; fruit-bearing shrubs; areas with Rosaceae including cultivated rose and raspberry. Found in both managed agricultural settings and natural such as the Ile-Alatau State National Natural Park in Kazakhstan where wild apple (Malus sieversii) occurs.

Distribution

Palearctic and Nearctic realms. Recorded from: Western Europe (Belgium), Western Turkey (Denizli and Usak provinces), Poland (Wielkopolska region), Kazakhstan (Iley Alatau), and Iran. Widespread in apple-growing regions worldwide.

Seasonality

on from May to August, with exact timing depending on location. First adults captured in late May in Western Turkey (May 24 in Civril, Denizli; May 30 in Sivasli, Usak in 2019). of 1-2 appear from second decade of April to first decade of May in Kazakhstan. occurs from April to May. overwinters as .

Diet

feed within rolled leaves on Rosaceae including apple (Malus domestica, Malus sieversii), raspberry (Rubus), and cultivated rose (Rosa). Mass feeding occurs on leaf rosettes, developing leaves, , flowers, and fruit buds in orchards.

Host Associations

  • Malus domestica - larval primary agricultural
  • Malus sieversii - larval wild apple in Kazakhstan
  • Rubus - larval raspberry
  • Rosa - larval cultivated rose, source of

Life Cycle

Overwinters as . develop through multiple , with 1-2 instars appearing from mid-April to early May in Kazakhstan. occurs from April to May. emerge and are active May to August. Complete development details for all instars not fully documented in available sources.

Behavior

construct -bound rolled leaves as feeding shelters. When threatened, larvae exhibit 'ejection' —rapidly exiting the leaf roll and descending on a silken , then climbing back once danger passes. This behavior is exploited by hunting such as Ancistrocerus unifasciatus, which use abdominal vibrations to stimulate ejection and capture. captured using traps for purposes.

Ecological Role

Agricultural pest causing serious in apple orchards. for diverse complex including in , , , , , and . Parasitoids provide significant , with Ichneumonidae most effective. parasitoid species include Phytodietus astutus, Itoplectis maculator, Scambus inanis, and Cotesia glomerata.

Human Relevance

Significant economic pest of apple production worldwide. Subject to programs utilizing and . potential through parasitoid . Misidentification of this in faunistic records has occurred, highlighting need for professional identification in pest management contexts.

Similar Taxa

  • Archips purpuranaSimilar and ; both use goldenrod and other ; distinguished by pattern details and
  • Archips crataeganaCongeneric with similar biology; distinguished by specific pattern characteristics and associations
  • Other Archips speciesMany congeneric share larval habit and general appearance; definitive identification often requires examination

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Sources and further reading