Liz from Freeport, Me writes
I applied Milky Spore 3 yrs ago but still have lots of grubs.
It can take 3-5 years for Milky Spore to become established in cooler areas like New England. You can apply more product to help the Milky Spore establish more quickly if you are getting a lot of damage.
Answer last updated on: 10/04/2017