How do herbicides work?

Answer 1

Depends on what you want to use them for. I have used lavender and or tea tea to wash my hands after gardening for years. When you work in the dirt and around plants your skin sustains lots of small superficial scratches and gouges, since I started using the lavender wash I have not had a single problem with the scratches swelling and/or turning red.

Answer 2

Herbicide is a 'chemical or biological agent which kills plants or inhibits their growth' (The Macquarie concise dictionary, 3rd Ed.)

For herbicides there are two methods to consider,

1. Contact herbicides kill the living plant tissue they come in contact with, they are fast acting.

2. Translocated herbicides are absorbed into the plant and move through-out the plant disrupting different functions with in the plant. These chemicals are slow acting.

3. Physiologically, most of the herbicides inhibit ALS (Aceto lactae synthase) thereby disrupt the synthesis of vital aminoacids that are important for the cell division and growth of cells. The plant gradually dies due to this

Answer 3

The chemical inhibits or interrupts the weed's biological processes or enzyme production. The way they work is referred to as "mode of action," and there are 11 primary modes of action which would include most herbicides commonly used in the US. See the related link below for more information.

Answer 4

Herbicides work by disrupting essential processes in plants, such as photosynthesis or growth regulation, leading to their death. They are designed to selectively target plants while being safe for non-target organisms. Herbicides can be applied directly to the plant or to the soil to prevent weed growth.