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Black Sigatoka

Black Sigatoka

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 : Pseudocercospora fijiensis (also Mycosphaerella fijiensis)

Other names : Black leaf streak disease

Leaf fungus of banana and plantain, found in almost all tropical producing areas and considered the most serious leaf disease of the crop. It starts as small reddish-brown streaks parallel to the veins that lengthen, turn black and merge until large areas of the leaf dry out. Loss of leaf area reduces bunch size and causes premature ripening of the fruit.

Crops affected : Banana

Source : Pseudocercospora fijiensis (MYCOFI)[Overview] — EPPO Global Database — EPPO Global Database

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

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

Banana

Opportunists of the same crops

Anthracnose Fusarium wilt Root-knot nematodes Banana weevil Cucumber mosaic virus Panama disease tropical race 4 (TR4) Banana bunchy top virus Pink hibiscus mealybug False codling moth

← Referenced opportunists