Use a mixture of water and hydrogen peroxide in the ratio of 3:1 to thoroughly water these plants. Hydrogen peroxide releases oxygen into the soil and also kills bugs. The released oxygen is then utilized by plants to grow.
Sprinkle diatomaceous earth onto the uppermost soil surface and in the pot. Diatomaceous earth is finely ground fossilized algae and can lacerate the outer shells of bugs.
Allow the soil to completely dry out and place it in an area with good ventilation. These conditions will make the soil unsuitable for bugs to dwell in. Finally, add water immediately the leaves start drooping.