October 1 is the date when the decision support system for ASTROKerb (propyzamide + aminopyralid) and Kerb Flo 500 (propyzamide) starts and it is also the date, according to their labels, after which these residual herbicides can be applied when conditions are correct.
The Ready Steady Go traffic light weather system is available 24/7 on the Dow AgroSciences main web site (uk.dowagro.com/kerb-weather-data/-).
The traffic light system indicates, down to individual postcode level, when soil temperatures are getting close to the optimum for the application of these post-emergence residual herbicides. Peter Waite of Dow AgroSciences says that the system has been enhanced this year to produce even more accurate results. “This year emojis have been added for wind and rainfall to give a more complete picture. We want the system to be more accurate and user friendly for growers and advisors.
“The concept of the traffic light system is very straightforward. Growers enter their postcode and the system lets them know whether conditions are getting close to the optimal for applying ASTROKerb or Kerb Flo 500; if the traffic light shows red, soil conditions are not right so don’t apply these herbicides; if amber, conditions are getting closer, so get set to apply and if green, conditions are close to becoming right. The system is not a definitive go/don’t go but a strong indicator for growers to look carefully at conditions for a particular field or farm,” says Mr Waite.