i had raked out a section of lawn today, and it was loaded with the buggers. i raked it out good, graded, then through some perrenial rye. do you think the grubs will be around long enough to destroy the upcoming growth, or me exposing them will open up a buffet for the birds. i already expect to reseed, so i'm not as concerned about them eating, some, of the seed. they have a dog and don't want any chemical apps. on the yard. wasting my time and should have waited?