Pod damage monitoring in oilseed rape in Vojvodina

Abstract

The cabbage seedpod weevil (Ceutorhynchus assimilis Paykull) and the brassica pod midge (Dasineura brassicae Winnertz) are the most important pod pests of oilseed rape worldwide. Their occurrence as well as the damage they cause can vary depending on the locality and season. They cause damage by feeding on pieces of pods which can result in pod shattering. The monitoring of the cabbage seedpod weevil and the brassica pod midge was conducted during a five-year period, from 2015 to 2019, according to EPPO standards. The aim of the monitoring was to assess the damage potential of these two species and to determine whether chemical control is economically justified. The pods were taken from oilseed rape fields under different agro-climatic conditions and plant protection regimes and number of larvae were counted. The number of examined pods varied from 1600, in 2018, to 7700 in 2017.