DYNAMICS OF THE APPEARANCE THE PEST DIABROTICA VIRGIFERA VIRGIFERA, IN THE MAIZE CROPS OF NEAMŢ COUNTRY, UNDER THE CONDITIONS OF 2019

Abstract

Research on the dynamics of the appearance of Diabrotica virgifera virgifera was made in the frame of a farmland cultivated with maize in Neamt county. The biological material collected using sticky yellow traps during the year 2019 from June to August. The variants and repetitions of the experience were organized according to the mode of protection of culture and according to the treatment applied, and thus resulted in three variants as follows:

Variant 1 - untreated maize;

Variant 2 - ground treatment with granulated insecticide FORCE G 1.5;

Variant 3 - treatment of the seed with Seedoprid 600 FS.

During the entire period of observation, a total of 5313 adult specimens of Diabrotica virgifera virgifera were collected, where the first alert of the adult was made on 12 June, and its last registration was on 16 August.