Rust, as a fungal disease, causes red spots on the leaves. The infected leaves begin to get yellow or brown and can fall off. Controlling rust on plants doesn’t require nasty chemical sprays that pollute your home. Thus, you can use natural methods to organically control rust on plants.
Natural solutions to control rust on indoor plants
1. Proper care
The best control for any fungal disease infecting your plants is a proper care. Excessive moisture and humidity increase the chance of rust infections. Thus, avoid overhead watering and over-watering. These favor the germination and spread of fungal spores.
Also, you can water early in the day to give the leaves more time to dry.
Give the plants the proper space they need to improve air circulation. This leads to quicker leaf drying and lower humidity levels.
With the first signs of rust spots, remove them immediately to help prevent the fungal disease from spreading.
2. Baking Soda
Sodium bicarbonate is can also be used to naturally control rust on plants. You should mix 4 teaspoons of baking soda and 1 ounce of horticultural oil in 1 gallon of water. This homemade fungicide spray can be applied to the infected with rust plants at weekly intervals.
The aspirin can help control rust. By dissolving two tablets of aspirin of 325 milligrams each in 1 quart of water is a natural spray that will terminate the rust.
4. Neem Oil
You can also use neem oil to control rusts on plants. Neem oil is an organic fungicide that works as a foliar spray once every seven days until the disease is under control. Continue applying at 14-day intervals to keep the disease away.