What's the Main Difference Between a Selective and Non Selective Herbicide

Basically, there are two main types of herbicides – selective and non-selective. The former is used when inhibiting the growth of a specific weed, leaving the other plants unharmed. The non-selective variants kills all the plants it comes in contact with.

What is the difference between a selective and non-selective chemical?

Selective herbicides are able to selectively target broad-leaf weeds or grass weeds, depending on the chemical, without harming your lawn, while non-selective herbicides, like glyphosate (Freezone Tuffweed) will kill any plant they come into contact with.

What is the difference between systemic and non systemic herbicide?

Systemic herbicides are absorbed and transported through the plant’s vascular system, killing the entire plant. Contact herbicides kill the part of the plant in contact with the chemical but the roots may survive and the plant may regrow. Broad spectrum (non-selective) herbicides will kill most plants they encounter.