Here is a gardening tip that Sandhya Srinivasan, a resident of T. T. K. Road, shared – ‘My hibiscus plants seem to be infested with black ants during the rainy season. I use this home remedy for that and it works well. Mix a little bit of chilly powder with water and sprinkle on the plants. This does not affect the plants but the ants stay away’. Try it on your plants too.