I'm restoring a Garry oak meadow in Victoria. Have removed thousands of invasive spanish bluebell, crocus, and snowdrops. Have combed carefully through the soil several times, and again before planting the new native plants but there are still many bulbs coming up. Ideally I would not have planted for one or two years, but felt pressured to plant now to satisfy neighbours who questioned the goal of this restoration (and who "loved" the spanish bluebell). I will be compromising the roots of my new native plants if I have to dig up the invasive bulbs. Is there any way to safely kill bulbs by applying something to the leaves, or ... ???? Thanks for your thoughts.