This video gives you tips on how to treat Lawn Grubs. The infestation of grubs is fairly easy to detect. The grass will die off in patches. The grubs will be visible. There are about 8 different species of white grubs that can infest your lawn. To treat your lawn for grubs, you have to do it by the first week of August or it is too late. There are various pesticides that can be used: e.g. oxynol. They lay their eggs in June, when they emerge. They feed off the root systems. You have to detect them early, before they've destroyed your entire lawn. There are numerous pesticides that work well on the typical grub.