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Rosemary beetle

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Rosemary beetle

Insect — Coleoptera

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 beetle larva and allies (Larva) Beetles (others) (Adult (and nymphs resembling the adult))

Scientific name : Chrysolina americana

Other names : Rosemary leaf beetle

Small beetle 7 to 8 mm long, metallic with green and purple stripes, native to the Mediterranean basin despite its name. Adults and grey larvae eat leaves and young shoots of rosemary, lavender, sage and thyme, mainly from autumn to spring.

Crops affected : Lavender, Rosemary, Sage, Thyme

Source : Chrysolina americana (CRYSAM)[Overview] — EPPO Global Database — EPPO

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

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

Lavender Rosemary Sage Thyme

Opportunists of the same crops

Xylella fastidiosa Stolbur (bois noir) Tomato spotted wilt virus Basil downy mildew Chilli thrips

← Referenced opportunists

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