Siphoninus phillyreae
In 3 days ~10% in a week ~20%
Siphoninus phillyreae, the ash whitefly, is a species of whitefly native to western Eurasia, India and North Africa but also introduced to North America. It is known in agriculture as a pest species of fruit trees, including pomegranates, pear and apple trees. It also feeds on ash and ornamental pear trees. Encarsia inaron is used as a biological control for it. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Auckland | 🇳🇿 New Zealand | |
| 3 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Ash Whitefly sighting in Auckland on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 459th most-seen of the 689 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.
February and March
In those months about 10% of wildlife watchers report an Ash Whitefly in Auckland on a given day, against under 5% in April to January, the lowest months.
Among the best
Of the 3 cities where we can rate Ash Whitefly sightings, Auckland ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Liverpool (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Ash Whitefly is recorded against all the insects logged in Auckland (11 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.
