Uman NUH | today: 05/16/2019

Vectors of viruses and mycoplasmosis in cereal crops, and mycoses depending on the varieties and combinations of insecticides with chemical immunizers

Author(s) Shevchenko Zh.P., Candidate of Biological Sciences, , Uman National University of Horticulture
Mostovjak I.I., Candidate of Agricultural Sciences, , Uman National University of Horticulture
Suhomud O.G., Candidate of Agricultural Science, Associate Professor of Department of Plant Protection and Quarantine, Uman National University of Horticulture, Ukraine
Mostovjak S.M., Candidate of Agricultural Sciences, , Uman National University of Horticulture
Chukhray R.V., , , Uman National University of Horticulture
Chukhray R.V., , , Uman National University of Horticulture
Category The Agronomy
year 2019 issue Випуск 94 Частина 1
pages 208-220 index UDK 632.4:[633.1:632.951:632.938]
DOI 10.31395/2415-8240-2019-94-1-208-220 (Link)
Abstract As a result of research conducted in the conditions of the Uman National University of Horticulture (2016-2018), it was found that among the current winter wheat varieties, both domestic and foreign, that we studied, resistant to vectors (carriers) of viral and mycoplasma diseases, not found, the same thing - to the pathogens of these diseases. That is, it turned out that all varieties are susceptible to both virosis and mycoplasmosis, as well as to mycoses, in particular, to Pyrenophora tritici repentis and Septorai nodorum. The largest number of cicadas - carriers of wheat mosaic virus (WMV). To a lesser extent, cicadas attracted plants of such varieties as Chedraya Niva, Lars and others. The cereal aphids (winged), which are carriers of the yellow barley dwarfism virus, were more detected on the varieties of Chedraya Niva, Podolyanka, Astarte and others. To a lesser extent, cereal aphids were found on the varieties Sotnitsa, Litanovka, Zorepad and others. It was found that they were more strongly affected by viroses and mycoplasmosis of the variety in the crops of which more carriers were found. Referring in particular Pyrenophora tritici repentis and Septorai nodorum, which were studied in the experiment, it turned out that the spots of these diseases on the leaves of wheat plants affected by viroses were more intense. It is established that the number of Aceria tritici Shev. In the years of research, there was no significant, the presence of a non-significant infestation of plants with a striped mosaic virus occurred as a result of how we believe that the spread of this disease by other carriers was not biologically (non-persistent), but mechanically, immediately after infection on diseased plants and others.). It is established that the systemic (intrapascial) insecticide Rubezh, c.s. (active ingredient dimetoat) in compositions with trace elements such as copper and manganese, as well as growth regulator Bioglobin, more effective against the cicadas (technical efficiency of 97.4%) than against aphids (technical efficiency of 85.0%). This tank mixture is economically advantageous (yield 4.54 t / h versus 4.40 t / h in the variant where this preparation was taken, and 4.09 in the control).
Key words vectors, vireases, mycoplasmosis, mycosis, phytophagus, conjugate diseases, organophosphorus insecticides, technical efficiency
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