A comprehensive impact of Clasterosporiosis and Polistigmosis diseases on almonds plantation: A brief review

Abstract

Abstract A number of authors have reported on Clasterosporiosis and Polystigmosis diseases of almonds occurring in the Tashkent region. These diseases are common in the CIS in Central Asia, the Caucasus, Moldova, and Ukraine. As well as, these diseases are widespread in all almond growing regions in Uzbekistan. Clasterosporiosis and Polystigmosis are among the most damaging diseases of almonds in Bostanlyk district of the Tashkent region. Red spot disease was first reported in 1970 in the Iranian city of Shiraz and is widespread in the Mediterranean regions and in the Middle East. This disease is one of the most important almond diseases, as it slows down the process of photosynthesis and leads to early defoliation of trees. A drop in fruit production has also been caused by this disease. Polystigmosis (red spot) is caused by the fungus Polystigma rubrum (Po. rubrum). The disease does not quickly destroy the trees, but its damage reduces the quantity and quality of the crop, slows the development of new branches, and consequently weakens the tree. Thus, this brief review paper presents the recent studies focused on the comprehensive impact of Clasterosporiosis and Polistigmosis diseases on almonds plantation.