More than 10 kinds of the basic pests have been revealed in territory various soil-climatic zones Republic. Among them are adventive –the Colorado potato beetle, whitefly and moth. Biological features seasonal dynamics their development established; general tactic protective methods with application progressive means receptions is developed. Precautionary tubers’ protection against moth establi...

fermentation of 49 carbohydrates and oxidation and assimilation of 96 substrates were examined for ten beauveria bassiana isolates. principal component analysis indicated that there are significant differences among isolates for utilization of some substrates. esculine and d- glucose were positively fermented by all isolates. isolates were grouped into four clusters on the basis of hierarchial ...

Larvicidal proteins encoded by cry genes from Bacillus thuringiensis were released in root exudates from transgenic B. thuringiensis corn, rice, and potato but not from B. thuringiensis canola, cotton, and tobacco. Nonsterile soil and sterile hydroponic solution in which B. thuringiensis corn, rice, or potato had been grown were immunologically positive for the presence of the Cry proteins; fro...

Interaction between insect herbivores and host plants can be modulated by endogenous and exogenous compounds present in the source of food and might be successfully exploited in Colorado potato beetle (CPB) pest management. Feeding tests with CPB larvae reared on three solanaceous plants (potato, eggplant and tomato) resulted in variable larval growth rates and differential susceptibility to Ba...

BACKGROUND Select populations of Colorado potato beetle, Leptinotarsa decemlineata, in Wisconsin have recently become resistant to soil-applied neonicotinoids in potato. Sublethal insecticide concentrations persisting in foliage through the growing season may select for resistance over successive years of use. Over the 2 years of this study, the aim was to document the in-plant insecticide conc...