Persimmon diseases and measures to combat themAbstract: the following diseases are noteworthy for their harm to the persimmon plant: persimmon gray rot - Botrytis diospyri Borg., persimmon cancer (phomopsis) - Phomopsis diospyri Rob., persimmon blight - Ragnildiana Levieri Vass., persimmon anthracnose - Colletotrichum Kaki Maffei, persimmon verticillium wilt - Verticillium diospyri Kleb., Measures to fight against diseases are given in the work. Introduction: Persimmon culture has been known to man for a long time. Its homeland is China, from where it was later introduced to Japan as one of the main fruit-bearing crops. It spread from Japan to the coastal countries of the Mediterranean Sea. In 1892, Tbilisi Botanical Garden received several persimmon varieties from Italy. In 1895, agronomist Klingen and professor A. Different varieties of persimmons were imported from Japan by Krasnov. According to some researchers, persimmon culture was known earlier in Georgia. Along with the development of agriculture in our country, persimmon has found a significant spread among subtropical fruit plants. Persimmon fruit is characterized by a very good nutritional value. It contains a large amount of sugars, mineral salts, fats and vitamins. In addition, persimmons are less demanding on soil conditions. Among the positive features of the persimmon, it is worth noting that it is one of the most frost-resistant plants among subtropical fruit trees. There are more than 100 varieties of subtropical persimmons in our country. The yield of subtropical persimmons is significantly reduced by various fungal diseases.
Verticillium wilt epiphytes of the hazelnut plant in western GeorgiaVerticillium wilt epiphytes of the hazelnut plant in western Georgia Lamziri Beradze – Acadenik doctor of biologicae, Ioseb Basilia – Doctor of Agriculture sciences, Ese Jakeli - Doctor of Agriculture sciences, Rusudan Takidze – Academik doctor of Agriculture, Nika Guntadze – Magistrant Key word: Fungi, Micelii, Sclerotii, Verticillium, Pathogen, Lecitin. Among Nut Diseases, Verticillium wilt is one of the most dangerous and damaging diseases. It was first noticed by us in Georgia in 2002-2003. Every year we observe its detection. Until 2021, it was marked by the wilting of unit stem and branches. This year in 2021, the disease has spread massively in hazelnut plantations of Ozurgeti, Chokhatauri, Vani and Zugdidi municipalities. According to our research, the disease is caused by the following species of the genus Verticillium: Verticillium dahliae Kleb., Verticillium foxii V.Beuma and Verticillium Lateritium Berk.