The moment we see some weeds that are being grown in the lawn we would try to get busy with the gardening work, we would dig the land where we see the weeds and would try to pull them out of the soil though they have rooted deep into the soil because we have not noticed them for quite a long time. How long you have ignored the weeds does not make a matter here, as everyone today are getting busy with fighting the competition that exists in the world. Immediately after you noticed the weeds, you would use scissors to cut them until their roots are reached but would leave the roots inside the soil assuming that they would not grow again. But, when you leave the weed roots as is without applying the right product then there are chances that they would reappear after a week or two weeks thus causing you to worry about the weed growth and would assume that removing weeds is not an easy task.
Than cutting with the scissors, you should be prompt in ordering the best grass and weed killer so that you do not have to find the various gardening equipment that would be used to dig the soil and remove the weeds. It is also possible that the roots of the plants that you want to grow and that of weed may be interlinked inside the soil which you do not know. So, if you pluck out the weeds there is a chance that even the good plants would uproot automatically and would become useless. So, it is important that you take proper decision of buying the weed killer than buying the equipment with which you could uproot the plants also along with the weeds.