| Ascolano | |
|---|---|
 Ascolano olives | |
| Olive (Olea europaea) | |
| Origin | Italy, California |
| Notable regions | Marche, Tuscany |
| Hazards | Verticillium dahliae, Spilocaea oleaginea (peacock or Pan Eye Disease), concerns over spreading X. f. pauca |
| Use | Table |
| Oil content | Low |
| Growth form | Spreading |
| Leaf | Elliptic |
| Weight | Large |
| Shape | Ovoid |
| Symmetry | Asymmetrical |
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]
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]
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]
The olive, botanical name Olea europaea, meaning 'European olive' in Latin, is a species of small tree or shrub in the family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as Olea europaea 'Montra', dwarf olive, or little olive. The species is cultivated in all the countries of the Mediterranean, as well as in Australia, New Zealand, North and South America and South Africa. Olea europaea is the type species for the genus Olea.
Apulia, also known by its Italian name Puglia, is a region of Italy, located in the southern peninsular section of the country, bordering the Adriatic Sea to the east, the Ionian Sea to the southeast and the Strait of Otranto and Gulf of Taranto to the south. The region comprises 19,345 square kilometers (7,469 sq mi), and its population is about four million people.
Arbequina is a cultivar of olives. The fruit is highly aromatic, small, symmetrical and dark brown, with a rounded apex and a broad peduncular cavity. In Europe, it is mostly grown in Catalonia, Spain, but it is also grown in Aragon and Andalusia, as well as California, Argentina, Chile, Australia and Azerbaijan. It has recently become one of the dominant olive cultivars in the world, largely under highly intensive, "super high-density" plantation.
Empeltre is a type of medium-sized, black olive originating in Spain. It is used both as a table olive and to produce a high-quality olive oil.
The olive fruit fly is a species of fruit fly which belongs to the subfamily Dacinae. It is a phytophagous species whose larvae feed on the fruit of olive trees, hence the common name. It is considered a serious pest in the cultivation of olives.
Xylella fastidiosa is an aerobic, Gram-negative bacterium of the monotypic genus Xylella. It is a plant pathogen, and is transmitted exclusively by xylem fluid-feeding sap insects. Many plant diseases are due to symptomatic infections of X. fastidiosa, including bacterial leaf scorch, oleander leaf scorch, coffee leaf scorch (CLS), alfalfa dwarf, phony peach disease, and the economically important Pierce's disease of grapes (PD) and citrus variegated chlorosis (CVC). In Europe, it has attacked olive trees in the Salento area of Southern Italy, causing olive quick decline syndrome (OQDS). While distributions of X. fastidiosa–related diseases are mostly limited to the Americas, outbreaks have occurred in Taiwan, Slovakia, and other countries worldwide.
The Bosana is the most common cultivar of olives in Sardinia. It makes up over 50% of the olive production on the island. The etymology of the name is uncertain, but it could refer to an alleged origin in the territory of Bosa. It is maintained, however, that the cultivar is of Spanish origin. It is used primarily for oil, but can also be eaten. The Bosana is a variety well adapted to less hospitable environments.
The Picholine is a French cultivar of olives. It is the most widely available cultivar in France. Though originally from Gard in southern France, it is today grown all over the world. The Picholine is best known as a cocktail olive, though it is also used to make olive oil. It is the most common variety of olive used for oil from Morocco.
The Olivière is a cultivar of olives grown primarily in the Pyrénées-Orientales region of southern France, where it is the most prevalent variety of olives. It is highly valued for its exceptionally high tolerance to cold. The Olivière is primarily used for oil, and even though the fruit yields a low percentage, the trees carry large quantities of olives, and the oil is of high quality.
The Tanche, probably the best known French olive cultivar, is grown primarily in the Drôme and Vaucluse regions of southern France. It is often referred to as a perle noire, the "Black Pearl of Provence". The Tanche is said to have been introduced to France by the Greeks of Massilia, around the fourth century BC.
The Germaine, also Ghjermana, Ghermana, Germana, and sometimes as Romana, is a cultivar of olives grown primarily in Corsica, but also in parts of northern Italy. Genetically it is close to the cultivar Frantoio, that is grown in the Italian region of Tuscany. The Germaine has a good yield of oil, and the plant is resistant to cold weather.
The Sabine is a cultivar of olives grown primarily in Corsica. In the Balagne region of Haute-Corse it is the main variety. The olive yields an exceptionally high amount of oil; more than 30%. Vulnerable to certain biological pests, it is relatively tolerant of cold. The Sabine olive variety should not be confused with the olive oil produced in the Sabina region of Italy.
The Cayon is a cultivar of olives grown primarily in the Var region of southern France. It is used primarily for the production of olive oil. The Cayon is highly valued for its role as a pollinator of other olive varieties.
The Leccino olive is one of the primary olive cultivars used in the production of Italian olive oil. Across Italy, it is one of the primary olive cultivars found in olive groves. It is believed to have originated in Tuscany, and it is now grown all over the world. Due to its delicate flavor, the olive oil it produces is commonly blended with Frantoio, Coratina, Moraiolo and Pendolino in order to create more flavor.
The Mission olive is a cultivar of olive developed in California, by Spanish missions along El Camino Real in the late 18th century. The Mission olive has been included in the Ark of Taste, an international catalog of endangered heritage foods maintained by the Slow Food movement. It is also the only American olive cultivar listed by the International Olive Council in its World Catalogue of Olive Varieties. Although developed in the United States, Mission olives are also used by South African olive oil producers.
Spilocaea oleaginea is a deuteromycete fungal plant pathogen, the cause of the disease olive peacock spot, also known as olive leaf spot and bird's eye spot. This plant disease commonly affects the leaves of olive trees worldwide. The disease affects trees throughout the growing season and can cause significant losses in yield. The disease causes blemishes on the fruit, delays ripening, and reduces the yield of oil. Defoliation and in severe cases, twig death, can occur, and the disease can have long-term health effects on the trees.
Verdale-de-l'Hérault is an olive cultivar developed in the department of Hérault, in the southern French region of Occitanie. The fruit produces a sweet oil with a light and fruity aroma of greenery, nuts, and apple, and exhibits no bitterness.
Olive quick decline syndrome (OQDS) is a wasting disease of olive trees which causes dieback of the leaves, twigs and branches so that the trees no longer produce crops of olives. The main cause is a strain of the bacterium, Xylella fastidiosa, which is spread by plant-sucking insects such as the meadow froghopper. The bacteria restrict the flow of sap within the tree and so choke its extremities.
Pecan bacterial leaf scorch is a disease of the pecan tree that is common throughout the production regions of the United States caused by the pathogenic bacterium Xylella fastidiosa subsp. multiplex. The pathogen was initially discovered to be coincidentally associated with symptoms of pecan fungal leaf scorch in 1998 and has subsequently been found to be endemic in the southeastern United States, as well as Arizona, California, and New Mexico.
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