There are two main group of Herbicides : selective and non - selective . Selective weedkiller kill only certain types of plant life . However , if selective weed killer are used in a high enough dosage , they can down all plants . Non - selective weed killer will kill all industrial plant including Gunter Grass . Non - selective herbicides are often used to crystalize out spots for way of life , railroad and other places where flora can cause problems . herbicide either belt down plant by contact or consistently by manipulating the plants own biological system . impinging herbicides only defeat the part of the plant that the weed killer pertain . Systematic herbicides pour down the entire plant by manipulating some part of the plant ’s increase system , such as the root . Before using any weed killer , interpret the steering . Some gist of herbicides can deepen if used in too large of an amount . Also , make certain the herbicide being used is appropriate for what is being used for . Below are the primary type of herbicides , with exercise of some that are commonly used in lawn care .

Phenoxy Acid

Phenoxy superman is a selective , contact type of weed killer that generally kill broadleaf plant . It is most commonly applied as a foliar spray . An instance of this type of herbicide is Weedone .

Benzoic Acid

Benzoic Lucy in the sky with diamonds is a selective type of herbicide that is apply with foliar spray . It targets broadleaf plants . Examples are Banvel and TBA . This weed killer can move through soil easily and be taken up by roots of sensible trees and soft blossom by fortuity , so be measured when using it .

Dinitroaniline

Dinitroaniline is a systematic herbicide used to attack roots of germinating seeds before the weeds grow . This case must be watered to aerate it , and it will stay in the dirt for month after software . Some examples include Weedgrass and Treflan .

Bipyridylium

Bipyridylium is a non - selective herbicide that is applied as a foliar spray . This systematic herbicide use the works ’s own photosynthesis against it , therefore it needs light to be effective . Reward is an example of this type of weedkiller .

Substituted Urea

Substituted urea is a taxonomic , selective type of weedkiller that is applied to the dirt . It is absorbed through the theme and stops them from growing . This is the only weed killer that can see to it crabgrass selectively . An exercise of this type of herbicide is Tupersan .

Arsenical

Arsenical is a selective type of contact herbicide that is foliar - applied . Examples include Weed - atomic number 99 - Rad and Weed - Hoe .

Miscellaneous

The most commonly known miscellaneous type of herbicide is Roundup . It is applied as a foliar nebuliser , and is a non - selective , systematic weed killer that keeps plants from develop by not appropriate Modern works cellular phone to develop . Roundup is the most wide used weedkiller .

References

…