RESEARCH IN CONTROL OF RAPESEED FLEAS

Abstract

During the emergence of winter rapeseed, the crop can be attacked by many species of pests, rapeseed fleas being the most important. This paper presents the results obtained in combating these pests as well as the participation of rapeseed flea species in the structure of the entomofauna collected using glued panels. The effectiveness of two control strategies over the period 2015-2018 was verified. By applying a single treatment with systemic insecticides, the degree of attack decreased compared to the untreated control in a proportion between 92.3% and 94.1%. The second variant was by applying the second treatment with a synthetic pyrethroid, at an interval of 14 days after the first treatment. In this variant, the degree of attack was reduced in a proportion between 95.2% and 97.2%. Every year and in every variant, Phyllotreta atra was the dominant species followed by Phyllotreta nemorum. The lowest catches were in Phyllotreta undulata and Psylliodes chrypocephala.

Keywords

• phyllotreta atra, phyllotreta nemorum, phyllotreta undulata, psylliodes chrypocephala, degree of attack.