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Septoria leaf spot of celery

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Septoria leaf spot of celery

Fungus

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 : Leaf spots and scabs (fungi) (Damage and symptoms on the host)

Scientific name : Septoria apiicola

Other names : Late blight of celery

Fungus of celery and celeriac. It forms brown spots on leaves and stalks dotted with tiny black points (pycnidia) visible with a hand lens; in heavy attacks the foliage dries up. It is mainly carried by contaminated seed and spread by splashing water.

Crops affected : Celery

Source : Septoria apiicola (SEPTAP)[Overview] — EPPO Global Database — EPPO

This page lists the bio-preparations in the collection that other references associate with this opportunist: Septoria leaf spot of celery.

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

Celery

Opportunists of the same crops

Carrot fly Verticillium wilt Stolbur (bois noir) Aster yellows Tomato spotted wilt virus Chilli thrips

← Referenced opportunists

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