Tobacco, eastern black nightshade, and tomato were grown for 3 to 13 weeks to assess differences in invasion, development, and soil density of Globodera tabacum tabacum (tobacco cyst nematode) in field plots and microplots over three seasons. Tobacco cyst nematodes invaded roots of resistant and susceptible tobacco, nightshade, and tomato. Nematode development was fastest in nightshade and slow...

The relationship between initial population density of Globodera pallida and yield was examined in five partially resistant and one non-resistant potato genotypes in a field trial. In the previous year, the experimental area had been manipulated using resistant and non-resistant potato genotypes to give plots with a range of initial population densities. The results showed that there were diffe...

Much progress has been made in developing techniques for characterizing population dynamics of nematodes. Nevertheless, most assay procedures have numerous inherent limitations (1,13). The efficiency of given methods may be dependent on soil type, moisture, and other environmental and biological factors (1,13). Certain extraction methods (e.g., Baermann funnel) depend on nematode motility. In a...

Plant-parasitic nematodes (PPNs) are significant pests that result in considerable economic losses global crop production. Due to the high toxicity of chemical nematicides, there is a need develop new strategies for nematode control. In this context, nematophagous fungi may offer viable option biological Two fungal strains (GUCC2212 and GUCC2232) were isolated from cysts Globodera sp., identifi...

Globodera rostochiensis resistance has been an important trait in potato (Solanum tuberosum) breeding for decades. Our aim was to complement phenotypic testing with genetic marker analysis. We analysed the results of G. greenhouse 4601 tubers 2918 clones from 11 years. Applicability H1 gene markers TG689 and 57R compared. implemented latter positive predictive value 99.1% negative 60.0% into sc...

As a severe danger to potato plants, cyst nematodes (PCNs) are regulated quarantine pests in many countries. Adhering soils or other tuber crops provoke the uncontrolled spread of pest after their industrial processing. The disinfection soil tares inactivate PCNs is therefore compulsory. In present study, we test whether viability and formation PCN cysts suppressed treatment with γ β irradiatio...

Globodera infestation was evaluated in soils of private farm plots Chernihiv and Kyiv regions Ukraine 2017–2018. Soil samples were taken at 88 farms, 15.02 ha total, 11 settlements 6 districts. The nematode abundance the examined areas graded as follows: less than 1000 eggs + larvae/100 cm3 — low rate infestation; 1000–5000 average rate; more 5000 high rate. 85.4 % study area is infested with g...