The following research comprised the discussion on the spread of the maize dwarf mosaic virus (MDMV), virus transmission, and scientifically based measures to combat the virus. The MDMV monitoring centered on the spread, diagnosis, and impact of the virus on morphophysiological traits and productivity of different maize cultivars. Over the past four years of research, the MDMV infection in corn samples was 44.7% (2020), 35.9% (2021), 27.0% (2022), and 23.0% (2023). The MDMV level of infection declined every year due to comprehensive measures to combat MDMV. In identifying reserve plants and vectors (aphids) of the virus, the main provision aimed at the use of various methods in combating the MDMV. The results revealed Sorghum halepense Pers. was the chief reservoir of MDMV. The complex control measures include selection of cultivars and hybrids resistant to MDMV. Based on the results, determining the corn cultivars emerged from their resistance to the MDMV. The hybrids Legend F1 from France, DKS 4141 F1 from Turkey, and Phenomenon F1 from Switzerland were notable with an average degree of MDMV infection. The degrees of infection were highest in the maize cultivar Mazza from Uzbekistan and the hybrid Megaton F1 from France, which proved not resistant.
Maize dwarf mosaic virus (MDMV), maize cultivars and hybrids, virus host and transmission, Sorghum halepense Pers., vectors, morphophysiological traits, productivity
For the maize dwarf mosaic virus (MDMV), the Sorghum halepense Pers. was apparently the main reservoir. In complex control measures, the corn cultivars’ identification occurred from their resistance to MDMV.