Anthonomus rubi
In 3 days ~20% 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 Vancouver on a given day, based on 83 verified sightings from GBIF citizen-science data. It is the 91st most-seen of the 482 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May–July and September–October
In those months about 10% of wildlife watchers report a Strawberry Blossom Weevil in Vancouver on a given day, against under 5% in August and November–April, 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, Vancouver ranks 4th 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%).
GBIF citizen-science records
It is estimated from how often the Strawberry Blossom Weevil is recorded against all the insects logged in Vancouver (83 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.
