Cornmeal to control ants | Plant Pests | Commercial Hydroponics farming

Hi All,

        I was recently made aware that cornmeal is best solution to kill ants in one's garden. Its completely safe and organic, saying that I am not aware if it is available in Bangalore or is it available in that name. I need someone to help me if you know about availability of this anywhere in Bangalore or any other organic alternative to control ants(particularly black ants).

Thanks in Advance,

Sunil