Ascolano (olive)

Ascolano is a cold-hardy table variety olive cultivar from the Marche and Tuscany regions of Italy that is also grown in California for olive oil.[1]

Ascolano
Ascolano olives
Olive (Olea europaea)
OriginItaly, California
Notable regionsMarche, Tuscany
HazardsVerticillium dahliae, Spilocaea oleaginea (peacock or Pan Eye Disease), concerns over spreading X. f. pauca
UseTable
Oil contentLow
Growth formSpreading
LeafElliptic
WeightLarge
ShapeOvoid
SymmetryAsymmetrical

Characteristics

Harvesting and milling when overripe results in the olive oil exhibiting a fruity character of tropical fruit and peaches. The variety needs cross-pollination with varieties like Leccino or Pendolino.[2]

The leaves of the Ascolano are broad, elliptic-lanceolate shaped, and of medium length. The fruit is elliptically shaped, long, rounded at the apex, and with a truncated base.[3]

Concerns

Although resistant to cold, "Peacock Spot" (fungus spilocaea Oleaginea) and "Olive Knot" (bacteria Pseudomonas Savastonoi), preventative measures are used with fixed Copper fungicides[4] such as copper hydroxide, tribasic copper chloride, copper sulfate, or copper oxide.[5]

The bacterial pathogen, Xylella fastidiosa pauca (X. f. pauca), that causes "Olive Quick Decline Syndrome" (OQDS) and mainly affects the Apulia region has infected 200,000 hectares (490,000 acres) in Italy and is feared to be spreading, despite containment measures.[6] The disease has been found in the regions of Apulia, Calabria, Basilicata, Sicily, Sardinia, coastal areas of Campania, Lazio, and in the south of Tuscany.[7]

See also

List of olive cultivars

References
  1. University of California Cooperative Extension: Growing Temperate Tree Fruit and Nut Crops in the Home Garden and Landscape (By Paul Vossen and Deborah Silver)- Retrieved 2018-07-07
  2. Home Guides: Ascolano Olive- Retrieved 2018-07-07
  3. Olea Database- Retrieved 2018-07-07
  4. The Olive Oil Source (November 06, 2004)- Retrieved 2018-07-07
  5. University of California Natural Resources: Peacock Spot and Cercospora Foliar Diseases on Olive (pp. 2, by Paul Vossen)- Retrieved 2018-07-07
  6. Nature: Gridlock over Italy’s olive tree deaths starts to ease (2016-05-18)- Retrieved 2018-07-07
  7. Firenza University Press: Potential distribution of Xylella fastidiosa in Italy: a maximum entropy model; Retrieved 2018-07-07-
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