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Xylella fastidiosa

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Xylella fastidiosa

Bacteria

What is an opportunist?

An "opportunist" is a population (fungi, bacteria, insects…) that takes advantage of a favourable environment to settle in, multiply and feed on it. It often develops when the natural defences of the affected organism are weakened — for genetic reasons or linked to context (water stress, deficiencies, nutritional imbalances, overcrowding…). This is typically the case in monocultures, where a single host plant, uniform and present in large numbers, offers ideal ground for it to spread.

Identification key : Vascular wilts (fungi and bacteria of the vessels) (Damage and symptoms on the host)

Scientific name : Xylella fastidiosa

Other names : Pierce's disease, Olive quick decline syndrome

Bacterium that lives in and blocks the xylem vessels, transmitted by xylem-sap-feeding insects such as the meadow spittlebug Philaenus spumarius. It can affect over 600 species: Pierce's disease of grapevine, olive quick decline in Apulia and leaf scorch of almond, citrus, coffee, lavender and rosemary. It is a priority quarantine pest in the European Union.

Crops affected : Almond tree, Avocado, Beech, Chestnut, Coffee, Dandelion, Eucalyptus, Fig, Grapevine (36 varieties), Holm oak, Lavandin, Lavender, Lawns and turf, Lemon balm, Mandarin tree, Mint, Nursery roses and shrubs, Oak, Olive tree, Oregano, Peach tree, Pear tree, Pine, Pistachio, Plum tree, Pomegranate, Poplar, Rosemary, Sage, Strawberry, Sunflower, Thyme, Walnut tree

Source : Xylella fastidiosa (XYLEFA)[Overview] — EPPO Global Database — EPPO

This page lists the bio-preparations in the collection that other references associate with this opportunist: Xylella fastidiosa.

Warning: the associations between recipes and opportunists come from other references (traditional practices, publications, user feedback). They are neither a recommendation nor a claim of effectiveness. There is no certainty regarding the preparation, application and use of these bio-preparations. See the regulations

No published recipe is associated with this opportunist yet.

See also

Crops

Airén Albariño (Alvarinho) Almond tree Barbera Pine Bobal Cabernet Franc Cabernet Sauvignon Coffee Chestnut Lawns and turf Chardonnay Chenin Blanc Poplar Plum tree Clinton Dandelion Peach tree Holm oak Eucalyptus Strawberry Grenache (Garnacha) Gewürztraminer Sunflower

Opportunists of the same crops

Stolbur (bois noir) Brown marmorated stink bug Pink hibiscus mealybug False codling moth Chilli thrips Redbanded thrips Aster yellows Vine mealybug Black rot of grapevine Esca of grapevine Grape phylloxera Tomato spotted wilt virus

← Referenced opportunists

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