Formation of natural groups of epiphytic bacteria in fruit garden with recommended pesticide loading

N.  Kopcha

doi:10.36495/1606-9773.2017.63.86-97

N. Kopcha

DOI: https://doi.org/10.36495/1606-9773.2017.63.86-97

Keywords: epiphytic microbiota, groupings, bacteria, fruit crops, apple, pear, pesticide load

Abstract

Determined the total number of groups of epiphytic microbiota phyloplans of apple and pear in different phenological phases of growth which is in the range of 10⁴—10⁶ (cl/h) kidneys, flowers, leaves; taxonomic and species composition of the epiphytic microbiota. Established the peculiarities of formation of natural groups of epiphytic bacteria in fruit garden with recommended pesticide loading. The effect of difenoconazole and lambda-cyhalothrin pesticides and their mixtures on the epiphytic microbiote of the fruit is analyzed. Epiphytic bacteria are more susceptible to fungicide; the total number of groups of epiphytic microbiota was restored 10 to 20 days after using the pesticide. Epithelium bacteria of apple and pear are resistant to the action of lambda-cyhalothrin insecticide in the recommended standards.

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