Apply a hot pepper treatment to the soil instead of the insecticide, if you prefer a more natural method of killing the maggots. Add 3 hot peppers, 3 cloves of garlic, and a chopped onion to a blender. Pour in 1 tablespoon of liquid dish soap and 3 cups of water. Blend until smooth.Click to see full answer. Keeping this in consideration, what will kill root maggots? Root Maggots and Control Common organic cures for root maggot include spreading diatomaceous earth around the plants while they are seedlings, floating row covers over seedlings and using natural predators of root maggots, like Heterorhabditidae or Steinernematidae nematodes or rove beetles, to kill the root maggots.Likewise, why are there maggots in my soil? Maggots are fly larvae that can be found on rotting vegetation and around the roots of garden plants such as corn, onions, turnips, carrots, cabbage, and even fruit trees. They can cause a lot of damage to the plants by eating their root systems, destroying their method of obtaining water or nutrients from the soil. Also Know, what is the best way to kill maggots instantly? Cover the maggots with lime, salt or vinegar If you find a maggot infestation in your garbage bin, cover the maggots in lime, salt or vinegar to kill them. Cleaning your garbage bin with a water and vinegar solution can help prevent future infestations.How do I get rid of maggots in my potted plants?Harmful pests such as cutworms and leafminer larvae should be submerged in warm, soapy water to kill them so they don’t harm other plants. There are a range of insecticidal soaps that are effective at killing pests. Use a ready-to-use insecticidal soap and spray the worms, repeating the application as needed.