Anthonomus rubi
In 3 days ~10% in a week ~30%
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 |
With luck
About 10% of wildlife watchers report a Strawberry Blossom Weevil sighting in Rotterdam [The Hague] on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 213th most-seen of the 355 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March, May and July–August
In those months about 10% of wildlife watchers report a Strawberry Blossom Weevil in Rotterdam [The Hague] on a given day, against under 5% in April, June and September–February, the lowest months.
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.
Among the best
Of the 17 cities where we can rate Strawberry Blossom Weevil sightings, Rotterdam [The Hague] ranks 7th at about 10%, level with the leaders once rounded. The best odds are in Birmingham (United Kingdom, about 10%), Stockholm (Sweden, about 10%) and London (United Kingdom, about 10%).
Same family: Curculionidae
The closest relatives of the Strawberry Blossom Weevil that you can see in Rotterdam [The Hague] (family Curculionidae, True Weevils) are Green Immigrant Leaf Weevil (about 10%), Black Vine Weevil (about 10%) and Nettle Weevil (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Strawberry Blossom Weevil is recorded against all the insects logged in Rotterdam [The Hague] (9 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.
