Classification of Herbicides on the Basis of Residual Effect
Classification of Herbicides on the Basis of Residual Effect
a Short Persistant Herbicides:
Residual effect remains in the soil upto a week.
E. g Paraquat, diaquat, Amitrole, DSMA, DNBP.
b. Medium Persistant Herbicides:
Residual effect remains in the soil for upto 2 to 6 weeks.
c. Very Long Persistant Herbicides:
Residual effect remains in the soil for few months even years. E. g Prometon, Fenuron, Fenac, Silvex, Boron.