Stem canker control and regulation of rapeseed growth in the autumn according to DuPont Poland

Plants' condition at the end of September

Plants' vigour

Plants in danger of infection (according to SPEC system indications) or symptoms of Leptosphaeria sp. or other disease

Healthy plants

  • the smallest plants 4 or less true leaves
  • ø of rootneck < 4mm
  • red-violet discolouration

Alert 0.6 l/ha

No treatement

  • more than 4 true leaves
  • ø of root neck > 4mm
  • big, dark green leaves
  • close distance between rows

Alert 0,6l / ha + growth regulator (e.q. CCC 750 0,5l / ha) or tebucanazol or metconazol

Growth regulator (e.q. CCC 750 0,5l / ha)

Protective treatement against Phoma lingam should be performed in conditions of risk infection (according to indications of SPEC system) or directly after noticing the first symptoms, independently of growth phase of the plant. Regulation of rapeseed growth is done only in fields with well grown, vigourous plants, with optimal population density, but not bigger than 50-60 plants /m2 and in good meteorogical conditions.