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The European

Grape Vine Moth,(EGVM)

Lobesia bo trana

Denis &Schiffermller, 1775,

Tortricidae

First U.S. Reportby Richard Hoenisch

Western Plant Diagnostic Network

Dept of Plant PathologyUC Davis

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Larva feeding in a grape berry & Botrytis in damaged clusterphotos Gobierno de Mendoza, Argentina

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The life cycle of Lobesia bo trana

Images by J. Feytaud 1924

Newly hatched larva & a fifth instar larva

Five instar stages

Embryonic development in the egg

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EGVM - Host RangeBlackberry Rubus fruticosus

Carnation Dianthus spp.

Cherry Prunus avium

Cucumber Cucumis sativus

Currant Ribes rubrum

Grape Vitis vinif era

Kiwi Actinidia chinensis

Peach Prunus persica

Olive Olea europea

Persimmon Diospyros kaki

Plum Prunus domesticaPomegranate Punica granatum

Potential range of Lobes ia botrana

in the continental U.S.

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Other hosts of EGVM in Europe

photo J.F. Gaffard

The Readers Digest

Ivy FlowersBlack Currant

Spurge Laurel(Daphne gnidium)

2001 Tony Morosco

EGVM larvae feed on flowers and fruit, not the leaves

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Earlier stages of European grapevine moth larvae, Lobesia

botrana,are tan to yellow-brown (top). Later stages become

dark colored (bottom) due to

thinning of the cuticle

Photo by Jack Kelly Clark.

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Hollowed out grape berry by EGVM larva

leaving only the skin, seeds, and frass

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Photo by Jack Kelly Clark.

Pupa of European grapevine moth,

Lobesia bo trana,exposed in its cocoon.

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Biological life cycle of Lobesia bo trana. This life cycle is for

Northern Italy which is at approximately 42 to 44 North Latitude,

while Napa is at 38N.

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EGVMHistoric Spread

1775 identified in Vienna by Denis &Schiffermller from samples from Puglia,southeastern Italy

1800 in northern Italy, then into Austriaproper

1854 in Baden, Germany

1880 in Switzerland

1890 in France 2008 in Chile

2009 in California

Image by Crati

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12/23From: Grape Pest Management, Second Edition

EGVM Look-Alikes

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EGVM Management Know the life cycle of the EGVM

Vineyard sanitationPupae over winter under thebark

Baci l lus thur ing iensis

Spinosad group - Success & Entrust(from Act inomycetes sp inosa)

Spinotoram group - Delegate

(from Saccharopolys pora spinosa)

Intrepid (methoxyfenozide) (insect growth regulator)

Pheromone dispensers may soon be available

Pyrethroids

Predators

More to learn

Photo by Jack Kelly Clark

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Spotted Wing Drosophila

fka: Cherry Vinegar FlyDrosoph i la suzuki

Adult female (left) and adult male (right) Drosophi la suzuki i.

In Japan they can reproduce up to 13 times a year

Photo by Martin Hauser

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Drosophila melanogaster

photo by Andr Karwath

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Spotted Wing Drosophila(only the male flies of this species have this marking)

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SWD Maggot

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Spotted Wing Drosophila Damage

On Raspberry and on Cherry

Photo by Martin Hauser

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SWD Range in North America

California

Oregon

Washington

British Columbia

Florida

Michigan

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SWD Host Range

Apple

Blueberry

Cane Berries

Cherry Grape

Peach

Persimmon

Plum Strawberry

(Source: Oregon Department of Agriculture)

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Signs of possible infestation include:

Spotted Drosophila male flies with a pale blackspot at the leading edge of the wing .

Small puncture wound on hanging fruit, where

female drilled in to lay her eggs.

Fruit softens on plant, starting at puncture scar.

Secondary decay can establish at this point.

Small pale maggots in intact fruit on the plant.

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Management of SWD

Attractant Baits and Sprays

Sanitationremove damaged and

rotten fruit. Allow no mummies

Floor Management

Area Wide Management

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