Hi there,
I have 5 weed varieties (Please refer to pictures) 



in my lawn.
Please let me know how can I get rid of it.
Also let me know if there is any kind of prevention herbiside I can apply before they grow.
Also my lawn turned to yellow. How can I fix it ?
Thanks in advance,
Vijay Wani
Weed1
Weed2
Weed3