Take them out of their pots to see if anything has crawled in through the drainage holes. Wash the leaves and stems with the hose. This soap is safe for people and pets. Leave plants outside for several days. Reapply insecticidal soap and take plants indoors two to three days later.
Some plants tend to hold the soap solution on their leaf surfaces.
This may cause burning. Before using an insecticidal soap, check the label to see if the plant is listed. If not, test a small area on your plant for sensitivity. It may take seven to 10 days for symptoms to appear. Over a period of about a week, gradually reduce light levels by moving plants from sun to light shade to heavy shade, and finally indoors.