IDENTXX GmbH supports Syngenta Agro GmbH in Triazine Field Monitoring
- detection of triazine resistance with molecular analysis of different weed species in Germany
One reason for the failure of chemical weed control is herbicide resistance. In some cases the widespread and long-term use of terbuthylazine in maize selected resistance in weed populations. To observe and evaluate the decreased efficacy, the Syngenta Agro GmbH conducts an ongoing extensive monitoring in maize. IDENTXX GmbH supports Syngenta with molecular studies to detect target-site resistance in different weed species.
Internal Resistance in Winter Oilseed Rape Inhibits Systemic Spread of the Vascular Pathogen Verticillium longisporum
Verticillium longisporum is a vascular fungal pathogen presently threatening oilseed rape production in Europe. Systemic spread of susceptible and resistant genotypes after dip-inoculation of the roots followed by quantitative polymerase chain reaction revealed similarities only in the initial stages of root penetration and colonization of the hypocotyl, while a substantial invasion of the shoot was only recorded in susc eptible cultivar.
First occurrence of resistance to strobilurin fungicides
in Microdochium nivale and Microdochium majus from naturally infected wheat grains
Microdochium nivale (Fr.) Samuels & Hallet and Microdochium majus (Wollenweber) belong to the Fusarium ear blight fungal complex affecting cereals. In 2007 and 2008, major Microdochium sp. infestations were observed in France, and the efficacy of strobilurins was found to be altered in some field trials.
