Insektmonitering og varsling for skadedyr
Konklusion
Ugentlig monitering af skadedyr og varsling for eventuelt bekæmpelsesbehov er i samarbejde med Nordic Sugar udført i 12 marker bejdset med Force 20 CS i perioden fra april til juli 2022. Der blev konstateret tripsangreb over skadetærsklen tre steder på Lolland og Falster. Der var meget få angreb fra runkelroebiller og jordlopper. Bedebladlus kunne findes i små mængder i enkelte marker, mens ferskenbladlus kunne findes sidst i juni på de fleste moniteringssteder. På to steder var skadetærsklen for ferskenbladlus overskredet.
Conclusion
Between April and July 2022, weekly monitoring of pests was carried out in collaboration with Nordic Sugar in 12 sugar beet fields treated with Force 20 CS seed coating. At three of the sites, thrips damage has been found above the control threshold. Damages from pygmy mangold beetles and flea beetles have also been found to a limited extent. Black bean aphids were not a problem in sugar beet in 2022, however, at end of June peach potato aphids could be found at most of the monitoring sites. At two of the sites the damage threshold for the peach potato aphid was exceeded.