UA54865U - Method for controlling spread of harmful organisms in agrocenoses of berry-fields - Google Patents

Abstract

A method for controlling harmful organisms in agrocenoses of berry-fields includes settling laboratory cultures of species of the genus Trichogramma onto bushes. In autumn three techniques of settling Trichogramma, in particular Trichogramma pintoi Voeg., are carried out. The first settling is carried out in autumn, at the end of September, in the period of egg-laying of females of Exapate congelatella, in an equivalent of 50 females per one bush, two further settlings of Trichogramma are carried out in spring-summer period, with an interval of 6-7 days, in the period of egg-laying of lepidopterous phytophages, in an equivalent of 60 and 65 females per one bush. Furthermore, in spring, in the period of the swelling of the buds and prior to flowering of berry-fields two techniques of foliar fertilizing of bushes with an aqueous solution of the organic fertilizer Riverm are carried out in an equivalent of 6 and 8 l/ha. Then, in the period of appearing phytophagous mites, aphids, caterpillars of lepidopterous phytophages, single spraying of bushes with an aqueous solution of the preparation Phytoverm 0.2% e.c. (emulsion concentrate), 1.2 l/ha is carried out. In addition, in the period of appearance of the first signs of damage of plants by the true mildew and anthracnose two sprayings of bushes with an aqueous solution of the biological preparation Planriz, with an interval of 8-10 days are carried out in an equivalent of 1.5 and 2.0 l/ha.