Common Brown Scale
Common brown scale bugs are unique insects, and almost doesn't look like an insect at all. They appear as small bumps that seem to be a part of the plant. They are only mobile for a short time after birth, and will disperse to find a portion of the plant to attach themselves to for the next sixty-five days, sucking nutrients from the plant. Their outer shell acts as a cap that protects them once they are attached to a plant, making it difficult to get rid of them. They can spread to additional plants if any leaves are touching.
Treatment: Treating scale insects can be challenging, and in some cases it may be best to throw the whole plant away before the pests can infest any other plants in your home. If this is not an option, then there are a few options, but timing is of the essence. During the mobile larvae stage, neem oil can be sprayed on the insects. However, if the scale bugs have attached themselves to the plant and have their protective cap, there are fewer options. Stronger insecticides can be used, or if the infestation is mild, a cotton swab dipped in rubbing alcohol can be dabbed directly onto the insects. Plants can be trimmed, taking away stems and branches that have been affected.