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Bacterial canker of kiwifruit (Psa)

Bacterial canker of kiwifruit (Psa)

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 : Bacterial diseases (Damage and symptoms on the host) Trunk and branch cankers (Damage and symptoms on the host)

Scientific name : Pseudomonas syringae pv. actinidiae

Other names : Psa

Bacterium specific to kiwifruit (Actinidia) that spread through the main producing areas from 2008. It causes angular leaf spots with a yellow halo, necrosis of shoots and flowers, and cankers on trunk and branches that ooze a reddish liquid. It enters through wounds and natural openings, especially in cool, wet weather.

Crops affected : Kiwi

Source : Pseudomonas syringae pv. actinidiae (PSDMAK)[Overview] — EPPO Global Database — EPPO

This page lists the bio-preparations in the collection that other references associate with this opportunist: Bacterial canker of kiwifruit (Psa).

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

Kiwi

Opportunists of the same crops

Botrytis (grey mould) Mediterranean fruit fly Stolbur (bois noir) Chilli thrips Redbanded thrips Brown marmorated stink bug

← Referenced opportunists