Review on Neem Bliss: All-Natural Neem Seed Meal for Organic Gardening and Soil Amendment - Enhance Your Garden's Health with Neem Cake Meal! (5 lbs) by George Marquez

It's no secret that there are natural molds in this product, which is why this product is so effective. YES, it killed the fungus gnats, almost immediately.My mistake, however, was using it as a top soil / top dresser. It looks pretty! But, after the first watering, the product turns solid, cakes together, and mold spawns. My understanding is that this mold is not harmful, but it is very unsightly, forming large white barriers around the plant. So, DO NOT USE AS TOP SOIL. Mix in with regular potting soil.THE SMELL. If you do NOT mix it in with regular soil, the smell will overwhelm your house and send guests running out the door. I was able to remove the most moldy and exposed portions by breaking up the remaining neem, and mixing it in with soil. We're still gnat free, and the smell has gone away.BUYER BEWARE. know what you're purchasing.