Properties and Function of Herbicide – Copper Sulphate
Copper Sulphate (CuSo4 5H2O): Used as algaecide.
Dose : 1 ppm, in flowing water 1 kg per cubic feet applied for 20 minutes. In static water 1-2 kg per acre feet of water. Applied in water for control of algac in ponds, lakes rice fields, streams, ditches and water supplied. It is crystalline solid or blue color.
Formulations : Water soluble material.
Dalapon : 2, 2 Dichioropropionic acid. It is selective. Translocated herbide.
Dose : 5 – 10 kg/ha.
Application pre and post emergence treatment.The chemical is take up through foliage and roots. It is solid, non – volatile, kills all annual and perennial grasses. E.g. Cynodon dactylon.
Formulation – Soluble powder.