Why do some herbicides work fast and others work slowly?
Why is there a difference between herbicides that work fast and those that work slowly, and what is the reason? Is there a netizen who can explain? General herbicides can be divided by their translocation within the plant into two types: systemic and contact. After a systemic herbicide is absorbed by a weed, it moves laterally and vertically through the weed's vascular tissue...
Why is there a difference between herbicides that work fast and those that work slowly, and what is the reason? Is there a netizen who can explain?General herbicides can be divided by their translocation within the plant into two types: systemic and contact.
After a systemic herbicide is absorbed by a weed, it moves laterally and vertically through the weed's vascular tissue, killing the weed down to its roots. Therefore this type of herbicide kills weeds slowly, but kills them thoroughly, roots and all.
After a contact herbicide is absorbed by a weed, the part that comes into contact with the solution dies quickly, which prevents the chemical from translocating within the plant, so it works fast, but it cannot kill the roots.
Zhongdiwang suggests: when controlling perennial weeds, only systemic herbicides can be chosen, not contact herbicides.