The products you mentioned will not pose a problem for your bulbs. You did however, put the crabgrass preventer on WAY too early, so there is no chance that that will work. It needs to be put on right as the lilacs are starting to bloom to work…about a month and a half from now here in USDA Zone 5 (Albany NY). It is also illegal in NYS to feed your lawn before 4/1 and it does little good since the lawn is still dormant.