Anthonomus rubi
In 3 days ~10% in a week ~20%
Anthonomus rubi, the strawberry-blossom weevil or strawberry blossom weevil, is a species of weevil found in Europe and western Asia. It feeds on plants of the family Rosaceae and is an important pest of strawberry (Fragaria × ananassa Duchesne) and raspberry (Rubus idaeus L.). This insect is a particularly problematic pest of strawberry in Europe, in some cases responsible for up to 80% loss of the berry crop.
Adults are 2–4 mm (0.079–0.157 in) long and dull black, covered with a fine grey pubescence. The larvae are 3–3.5 mm (0.12–0.14 in) long, curved, and white with brown head. Adults feed on strawberry foliage, and females lay eggs inside unopened flower buds (one egg per bud) before partially or totally severing the stalk; larvae develop inside the severed buds, feeding on the wilting tissue.
Adults are thought to be attracted to strawberries by chemicals released by the plants. Monoterpenes, sesquiterpenes, and aromatic compounds acted as odorants (attractors) on weevils' receptor neurons. Male A. rubi then release their own blend of aggregation pheromone, three components of which have been shown to attract weevils to baited... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Pyrénées National Park | 🇫🇷 France | |
| 3 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Stockholm | 🇸🇪 Sweden | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Vancouver | 🇨🇦 Canada | |
| 5 | Essen | 🇩🇪 Germany | |
| 6 | Brussels | 🇧🇪 Belgium | |
| 7 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 8 | Munich | 🇩🇪 Germany | |
| 9 | Hamburg | 🇩🇪 Germany | |
| 10 | Berlin | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Strawberry Blossom Weevil sighting in Nizhny Novgorod on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 351st most-seen of the 405 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Strawberry Blossom Weevil in Nizhny Novgorod on a given day, against under 5% in July to May, the lowest months. That is one of Nizhny Novgorod's wettest months, with about 85 mm of rain against 40 mm in February.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Strawberry Blossom Weevil sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
12th of 17
Of the 17 cities where we can rate Strawberry Blossom Weevil sightings, Nizhny Novgorod ranks 12th at under 5%. The best odds are in Birmingham (United Kingdom, about 10%), Stockholm (Sweden, about 10%) and London (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Strawberry Blossom Weevil is recorded against all the insects logged in Nizhny Novgorod (5 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
