Rhopalosiphum padi
In 3 days ~10% in a week ~20%
Bird cherry-oat aphid (Rhopalosiphum padi) is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It is considered a major pest in cereal crops, especially in temperate regions, as well as other hosts in parts of Northern Europe. It is the principal vector of many viruses in economically important field crops.
R. padi has a worldwide distribution and according to research, they can colonize a number of dicotyledon host plants, although their preference is within monocotyledon plant groups much like the closely related R. maidis and R. rufiabdominale. The main plant hosts are categorized and listed below but as the name suggests, the primary host is Prunus padus, where it overwinters as eggs. In Northern America, it is found to overwinter on Prunus virginiana (common choke-cherry). In spring, it attacks all major cereals and pasture grasses; particularly barley, oats, wheat and other Gramineae plant species. It is also commonly found in maize growing regions.
Bird cherry-oat aphid can vector a number of serious diseases including the barley yellow dwarf virus (BYDV), the cereal... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Berlin | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Bird Cherry-Oat Aphid sighting in Berlin on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 949th most-seen of the 1065 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.
April
In that month about 10% of wildlife watchers report a Bird Cherry-Oat Aphid in Berlin on a given day, against under 5% in May to March, the lowest months. That is one of Berlin's driest months, with about 30 mm of rain against 80 mm in July.
Only Berlin, in our data
Berlin is the only city on Wallace's Line with enough records to rate Bird Cherry-Oat Aphid sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Aphididae
The closest relatives of the Bird Cherry-Oat Aphid that you can see in Berlin (family Aphididae, Aphids) are Lime Leaf Aphid (about 10%) and Poplar Spiral Gall Aphid (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bird Cherry-Oat Aphid is recorded against all the insects logged in Berlin (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.
