Houseplants brought outside during the summer may have pillbugs, millipedes, and slugs infest their root balls. These houseplant pests may cause minor root system feeding damage. They are usually found on the outside of the root ball in small cavities carved out of the potting mix. While outside, ants may build nests in the potting soil of houseplants.

DEALING WITH PILL BUGS.

The plant container can be carefully removed to inspect for pillbugs, millipedes, and slugs, which can be easily scraped away. Ant colonies in the container may be killed by soil drenches of cyfluthrin or lambda cyhalothrin-containing products. Pour the solution through the soil in the container after mixing insecticide concentrates at the same rate as for spraying. Allow pots to drain and dry completely before bringing them inside. To ensure safe use, follow the directions on the label.