UA48086U - Method for protecting sugar maize crops from lepidopterous pests - Google Patents

Abstract

A method for protecting sugar maize from lepidopterous pests includes settling a parasite of pest eggs, in particular Trichogramma, onto plants. Prior to sowing the maize perennial grasses are sown. A nectariferous plant, in particular lemon balm (Melissa officinalis), is sown in spring along the perimeter of a maize field with a band of 55-60 cm in width. At the beginning of emergence of lepidopterous pests single settling of Trichogramma of the Trichogramma pintoi Voeg. species into lemon balm plants is carried out in an equivalent of 15-20 females of the Trichogramma per 1 mof area. At the beginning of mass emergence of lepidopterous pests double settling of Trichogramma of the Trichogramma evanescens Westw. species onto maize plants with an interval of 5-6 days is carried out with a consumption rate of 60 and 80 thousand of females of Trichogramma per 1 ha. In the period of appearance of caterpillars of pests elder by age thereof single settling of the ectoparasite Habrobracon (Habrobracon hebetor Say.) is carried out in an equivalent of 450 individuals per 1 ha.