biopreparados.es

Early leaf spot of peanut

Early leaf spot of peanut

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 : Cercospora arachidicola

Other names : Early leaf spot of groundnut

Peanut fungus present in all growing areas. It forms rounded brown spots surrounded by a yellow halo on the leaves, most visible on the upper surface; leaves drop and pod yield falls. It survives in crop debris and is favoured by heat and humidity.

Crops affected : Peanut

Source : Cercospora arachidicola (MYCOAR)[Overview] — EPPO Global Database — EPPO

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

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

Peanut

Opportunists of the same crops

Cotton bollworm (Helicoverpa) Tomato spotted wilt virus Chilli thrips Pink hibiscus mealybug Groundnut bruchid

← Referenced opportunists