What's eating my kalanchoe synsepala?

Kalanchoe synsepala (cup kalanchoe), an unusual species that produces plantlets on long runners, is most often attacked by mealybugs, which exploit the dense plantlet clusters as shelter. Spider mites and aphids on new growth are secondary threats. The runner tips and tiny plantlets are prime hiding spots that need checking each month.

White cottony masses at leaf axils, along runners, and among plantlet clusters; honeydew; slowed runner production. Swab each affected site with 70% isopropyl alcohol; spray the whole plant including runners with neem oil weekly for four weeks.

Pale stippling across leaf surfaces; fine webbing where leaves meet the stem; plant looks washed-out in dry rooms. Increase local humidity; apply insecticidal soap spray; repeat every five to seven days for three to four cycles.

Soft insects clustering on young growth and plantlet stems; sticky deposits; distorted new leaves. Rinse off with water; apply insecticidal soap, repeating every three days until all colonies are gone.