Abstract
Four different fungicides that recommended to control seed-borne pathogens, were tested in this study. Three fungicides contain singly pyraclostrobin (200 g/L), thiram (400 g/L), fludioxonil (25 g/L), and one fungicide contains together imazalil, metalaxyl, and tebuconazole (50, 40, and 30 g/L, respectively). Comparative assessment of the fungicides at four concentrations of active substance (10, 100, 1 000, and 10 000 ppb) on the growth of ten strains of Fusarium spp. was studied in vitro tests. To visualize the effect of fungicides on fungal growth the strains were cultivated in 50 mL liquid Czapek medium containing fungicides in the range of concentrations. The fungicide based on pyraclostrobin was the most effective in growth inhibition of Fusarium fungi. Broadly, the using of this fungicide is confident way to control Fusarium species, which are serious threat to crop production. The sensitivity of F. acuminatum, F. graminearum, F. semitectum, F. culmorum, F. sporotrichioides, F. equiseti strains to fungicides was higher in compare with the strains belonging to F. oxysporum, F. solani, F. verticillioides, and F. proliferatum.
Highlights
Diseases caused by Fusarium fungi are a common occurrence on plants, often having a significant economic impact on yield and its quality
The addition of the fungicides to the Czapek medium (CZ) led to significant effect, contributing to a decrease in the weight of fungal biomass (Fig. 1)
It depends on the Fusarium species (p < 0.0001), as well as on fungicide (p = 0.02)
Summary
Diseases caused by Fusarium fungi are a common occurrence on plants, often having a significant economic impact on yield and its quality. The different Fusarium species causes rot of root and stem base, seedling death, wilting, stunting, leave and head blight [1]. Managing diseases is an essential component of production for most crops. There is no single method to provide effective control of Fusarium fungi on cultivated cereals, vegetables, and others crops. Management of pathogenic Fusarium species includes crop rotation, sanitation, and judicious use of fungicides. There is not sufficient number of available varieties with measurable resistance to Fusarium diseases. A few Fusarium species which infect grains produce mycotoxins that can cause severe illness or even death in humans and animals when consumed [2, 3]. The infection with pathogenic fungi is increased greatly after seeds contact the ground
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