Hi Debra,
It's hard to tell what pest you have. It could be mealy bugs. The brown "coating" on the stems may be scale insects. We suggest that you spray the soil and plants with insecticidal soap or horticultural oil. Repeat two to three times. If this doesn't help replace the potting soil with new fresh soil.
www.almanac.com/topics/gardening/pests-and-problems?page=1
To see more information about white flies go to http://www.almanac.com/content/whiteflies
Hi Debra,
It's hard to tell what pest you have. It could be mealy bugs. The brown "coating" on the stems may be scale insects. We suggest that you spray the soil and plants with insecticidal soap or horticultural oil. Repeat two to three times. If this doesn't help replace the potting soil with new fresh soil.
www.almanac.com/topics/gardening/pests-and-problems?page=1
To see more information about white flies go to http://www.almanac.com/content/whiteflies