Milky Spore Lawn Spreader Mix does not affect pets, beneficial insects, fish, bees, birds, other animals, plants, or man. It is not a poison.
Milky Spore Spreader Mix is too light to be used with a broadcast spreader. It must be placed in concentrated areas on the lawn and that is why it must be used with a drop spreader over every square foot of grass. It requires six applications usually Spring and Fall for two years to build the number of spores in any one area to millions of spores.
The 20lb bag of Milky Spore Lawn Spreader mix will cover 7000 square feet. You should apply Milky Spore grub control granules with a drop spreader in the Spring, Summer, and Fall for 2 years to create the long term residual.
No Milky Spore Lawn Spreader Mix is not affected by pesticides, fungicides or herbicides. They may be applied at the same time.
If you have already had a frost, then it is very unlikely there are still any grubs actively feeding close enough to the surface to be killed by curative insecticides. You should apply Milky Spore Lawn Spreader Mix in the Spring, Summer, and Fall for 2 consecutive years for best results. If there are areas where it is difficult to apply with a spreader, then you can wear gloves and use your hands to disperse the product. Be sure to remove any groundcover such as pine straw, wood chips, etc. so that the spores will actually get into the soil. Be sure to read the FAQs on the product page and the product info sheet for more information.