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An infected olive grove in Italy in 2019 Disease of olive trees Olive quick decline syndrome ( OQDS ) (in Italian: Complesso del Disseccamento Rapido dell'Olivo , CDRO or CoDiRo ) 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 .
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.
One of the first scientists to carry out scientific and modern research on the disease of olive trees caused by Pseudomonas savastanoi (Italian: la rogna dell'ulivo) was Giuseppe Maria Giovene (1753-1837), who explained his conclusions in his publication Sulla rogna degli ulivi (1789).
Significant variation in symptoms is seen between diseases, though some symptoms are expressed across species. On a macroscopic scale, plants infected with a X. fastidiosa-related disease exhibit symptoms of water, zinc, and iron deficiencies, [27] manifesting as leaf scorching and stunting in leaves turning them yellowish-brown, gummy substance around leaves, [27] fruit reduction in size and ...
The olive tree and olive oil are mentioned seven times in the Quran, [71] and the olive is praised as a precious fruit. Olive tree and olive oil health benefits have been propounded in prophetic medicine. Muhammad is reported to have said: "Take oil of olive and massage with it – it is a blessed tree" (Sunan al-Darimi, 69:103).
The species name olivacea comes from Latin, meaning olive-colored, which describes the typical appearance of the fungus. Additionally, this fungus has been associated with olive leaf die back, among many other endophytic ascomycetes whose earliest records have origin in the Mediterranean, where olive trees, Olea europaea , are abundant.
Saissetia oleae (syn. Coccus oleae) is a scale insect in the family Coccidae.It is considered one of the three main phytophagous parasites of the olive tree (Olea europaea), together with the olive fruit fly (Bactrocera oleae) and the olive moth (Prays oleae).
The fruit is produced in clusters, and the production is sometimes astonishing, the tree becoming literally black with fruit. The tree and its fruit are very resistant to disease, the fruit presents also the advantage that it is never attacked by the olive-fly Dacus Oleae and is therefore always allowed to ripen on the tree. This is a variety ...
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