Take your finger and scrape at the brown spot. If it doesn’t come off, it’s probably due to one of the following: too much water, too much fertilizer, or too much sun.
If it does come off, then you are likely dealing with scale, an insect pest. You should scrape off all of the ones you can see, then create a solution of 1 part rubbing alcohol and 1 part water. Use a cotton swab to wipe down the areas where the pests were. Check the plant several times a week to see if more scale appear and repeat the treatment process.
Take your finger and scrape at the brown spot. If it doesn’t come off, it’s probably due to one of the following: too much water, too much fertilizer, or too much sun.
If it does come off, then you are likely dealing with scale, an insect pest. You should scrape off all of the ones you can see, then create a solution of 1 part rubbing alcohol and 1 part water. Use a cotton swab to wipe down the areas where the pests were. Check the plant several times a week to see if more scale appear and repeat the treatment process.