Posted: 23/05/2015 at 07:45
Far to much oil. You only need a tablespoon full and the garlic contains oil as well. It is only there to get it to stick to the plant leaves and coat any bugs. Note that vegetable oils on their own are just a carbon source; there is no nitrogen so your plants should be fine. It should decompose in a few months max depending on how much oxygen and how many microbes are present to aid in the decomposition. You will have bright shiny plants for a while though.