Variegated cutworm clips off the buds and stems of older plants and young plants are cut off at the soil surface. No chemical control is listed.
Aphids suck plant juices, as will thrips. The insects can be controlled with Diazinon dust or sprays of rotenone, or Sevin. On carnations, an additional pesticide that may be used is Orthene.
Mites cause the leaves to turn pale and have a dusty coating. Heavily infested plants are stunted. Use applications of rotenone to control mites.