Understanding Herbicides - Part 2

A brief overview of how herbicides are applied, and how to avoid resistance.

- 

Selective herbicides control specific weed species, while leaving your crop relatively unharmed. Non-selective herbicides are used to clear waste ground and kill any plant they touch.

Herbicides applied to the soil are usually taken up by the root or shoot of the emerging seedlings and are used for preplant or pre-emergence treatment.

Positioning of the herbicide in the correct layer of soil is very important, as many soil applied herbicides are absorbed through plant shoots while these are still underground.