Lobesia botrana

(Denis & Schiffermüller, 1775)

European grapevine moth, European grape worm

Lobesia botrana is a tortricid native to Southern Italy, now distributed across Southern Europe, North Africa, Anatolia, the Caucasus, and introduced to Japan, Chile, Argentina, and briefly California (2009–2016). It is a major vineyard pest whose larvae feed internally on grape berries, causing direct damage and facilitating secondary fungal . The has two to three per year in Europe, with pupae in silken cocoons.

Lobesia botrana by (c) Adrien Jailloux, some rights reserved (CC BY), uploaded by Adrien Jailloux. Used under a CC-BY license.European Vine Moth.Lobesia botrana.Tortricidae - Flickr - gailhampshire (1) by gailhampshire from Cradley, Malvern, U.K. Used under a CC BY 2.0 license.Lobesia botrana ugglan by wikipedia. Used under a Public domain license.

Pronunciation

How to pronounce Lobesia botrana: /loˈbe.si.a bɔˈtra.na/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

are small with forewings mottled in tan-brown, greyish, and dark-brown blotches; hindwings are gray with fringed borders. Females are slightly larger than males. Body length 6–8 mm, wingspan 12–13 mm. Larvae are 8–9 mm long, yellowish green to light brown with a light yellow .

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Habitat

Vineyards and areas supporting wild or cultivated grapevines (Vitis vinifera); also found on spurge laurel (Daphne gnidium) and other plants in suitable climates.

Distribution

Native to Southern Italy. Native range includes Southern Europe, North Africa, Anatolia, and the Caucasus. Introduced to Japan, Chile, and Argentina; eradicated from California (USA) in 2016 after detection in 2009.

Seasonality

Two to three per year in Europe; active during growing season. Pupae overwinter in silken cocoons.

Diet

Larvae feed primarily on flowers and fruit of grape (Vitis vinifera) and spurge laurel (Daphne gnidium). Additional recorded include blackberry (Rubus fruticosus), currants (Ribes sp.), olive (Olea europaea), cherry (Prunus avium), plum (Prunus domestica), kiwifruit (Actinidia chinensis), and pomegranate (Punica granatum).

Host Associations

  • Vitis vinifera - primary main ; larvae feed on flowers and fruit causing major economic damage
  • Daphne gnidium - primary significant alternative ; larval development faster and pupae heavier than on grapevine in some conditions
  • Olea europaea - secondary larvae can complete development on olive inflorescences; multiplication rates comparable or higher than on grapevine
  • Rubus fruticosus - secondary recorded plant
  • Ribes sp. - secondary recorded plant
  • Prunus avium - secondary recorded plant
  • Prunus domestica - secondary recorded plant
  • Actinidia chinensis - secondary recorded plant
  • Punica granatum - secondary recorded plant

Life Cycle

hatch into larvae that develop in 20–30 days. Larvae feed on plant reproductive structures, then pupate. Pupae overwinter inside silken cocoons. Two to three per year in Europe.

Behavior

Female oviposition preference is influenced by plant volatiles; vine inflorescences preferred over olive inflorescences in two-choice tests. Larvae tunnel into berries and feed internally, leaving excrement. occurs in protected locations.

Ecological Role

Herbivore and fruit pest; larval feeding creates entry points for fungal including Botrytis cinerea. Serves as for including Campoplex capitator, Goniozus legneri, and Trichogramma cacoeciae.

Human Relevance

Major economic pest of vineyards worldwide. Larvae damage grapes directly and facilitate secondary rot, reducing yield and quality. Subject to efforts in California (successful 2016) and ongoing management elsewhere through , , , and cultural practices such as bunch-zone leaf removal.

Similar Taxa

  • Other Tortricidae grape pestsSimilar size and ; distinguished by forewing pattern and larval coloration
  • Ectomyelois ceratoniaeCo-occurs in some regions; different range and larval

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