biopreparados.es

Pear psylla

Pear psylla

Insect — Hemiptera

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 : Leafhoppers, planthoppers and psyllids (jumpers) (Adult (and nymphs resembling the adult))

Scientific name : Cacopsylla pyri

Other names : Pear sucker

Small sap-sucking insect 2 to 3 mm long, resembling a tiny cicada, specific to pear. Nymphs feed on the sap of shoots and leaves and excrete abundant honeydew on which sooty mould grows, blackening leaves and fruit. It can have three to six generations per year and transmits the pear decline phytoplasma.

Crops affected : Fruit tree rootstocks, Pear tree

Source : Cacopsylla pyri (PSYLPI)[Overview] — EPPO Global Database — EPPO Global Database

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

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

Pear tree Fruit tree rootstocks

Opportunists of the same crops

Brown rot (Monilinia) San José scale Mites Botrytis (grey mould) Scab Fruit tree canker (Nectria) Bacterial diseases Codling moth Mediterranean fruit fly Fire blight Stolbur (bois noir) Xylella fastidiosa

← Referenced opportunists