I have a friend that has lived in the same house for several years and never been bothered with grub worms. after our drought this year and finally last week many inches of rain....grub worms appeared on their large lawn by the thousands....maybe millions....they are scooping them up with shovels....putting them in buckets and pouring something over them to kill them....i just heard about Grub-X and want to tell them about it if you think it will help them....they purchased some kind of powder but it was about $300.00 and that seems like to much for a product to treat the lawn themselves...am i wrong...thanks for you help and input...have a nice day.....