Test of fungicide Farmaiod, GS for apple tree viral diseases control
https://doi.org/10.31676/0235-2591-2019-3-52-56
Abstract
In the Krasnodar Territory, on the Renet Simirenko apple variety, symptoms corresponding to the manifestation of viral diseases were found: chlorotic leaf spot, dark green depressed spots on the fruit, which manifest themselves at the end of ripening before harvesting and during storage. Identification of pathogens was performed by Enzyme Immunoassay (ELISA). Samples were tested for the presence of apple chlorotic leaf spot virus (ACLSV), apple stem pitting virus (ASPV), apple stem grooving virus (ASGV), and apple mosaic virus (ApMV). As a result of the analysis, viruses of chlorotic leaf spot of the apple tree (ACLSV) and pitted of apple tree wood (ASPV) were detected. To protect the apple tree from viruses, the drug Farmaiod, GS, whose active ingredient is iodine, was tested. The first treatment was carried out during the 2014 leaf fall period with a consumption rate of 1.0 l/ha and continued in the following 2015 in the phenophase "green cap" and "fruit diameter 10-20 mm" in two versions with consumption rates of 0.5 and 1,0 l/ha. With the onset of leaf fall in the same areas, the treatment cycle was repeated according to the same scheme. Accounting was carried out by the method of visual diagnostics, in addition, at the end of the first and second seasons, virological analyzes were performed by ELISA. As a result of research, it was noted that 3-fold use of the drug Farmaiod, GS in apple trees of the variety Renet Simirenko restrained the development of the apple tree acle virus (ASPV) and completely suppressed the apple leaf chlorophyll virus (ACLSV). The weather conditions of 2016 test triggered a strong manifestation of scab on leaves and fruits. In the experimental variants, it was noted that the drug at 78.3-83.1 % inhibits the development of apple scab. Treatment with Farmaiod, GS also fostered harvest increase and premium output. The maximum results regarding restraints of infectious processes as well as harvest increase were received when applying the preparation with consumption rate of 1,0 l/ha.
About the Authors
I. P. Borisova
Scientific and biological center «Pharmbiomed» Ltd.
Russian Federation
Russian Federation
Borisova Irina P. - Head of the Laboratory of Plant Protection Products
129226, Moscow, mailbox 60
Yu. N. Prihodko
All-Russian Plant Quarantine Center
Russian Federation
Russian Federation
PhD (Agric.), Leading Researcher
Bykovo, Moscow region
M. E. Podgornaya
North Caucasus Federal Research Center of Horticulture, Viticulture and Winemaking
Russian Federation
Russian Federation
PhD (Biol.), Head of the Laboratory for the Protection and Toxicological Monitoring of Perennial Agrocenoses
Krasnodar
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Review
For citations:
Borisova I.P., Prihodko Yu.N., Podgornaya M.E. Test of fungicide Farmaiod, GS for apple tree viral diseases control. Horticulture and viticulture. 2019;(3):52-56. (In Russ.) https://doi.org/10.31676/0235-2591-2019-3-52-56
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