Spider Lily Disease


Spider lily disease refers to the leaf disease of the spider lily plant. Spider lilies are perennial flowers of the Amaryllis family and are generally pest-resistant. Sometimes, however, they can be stricken with leaf or insect disease.


Spider lily disease is an infection predominantly developed on the leaves of the spider lily plant, resulting in their premature drying. This infection could be insect-related.


Three insects that generally infest the spider lily plants are the Spanish moth caterpillar (Xanthopastis timais), the banded greenhouse thrips (Hercinothrips femoralis) and the snow scale (Pinnaspis strachani).


Plants afflicted with spider lily disease were found with leaves that showed curling, chlorotic striping and yellowing.


Spots of infection on the spider lily are easily controlled by picking the infected leaves and destroying them. If entire leaves are infected, it is best to discard the whole plant. Insect infestations in spider lilies can be controlled easily with malathion sprays.


Over-watering spider lily plants can promote spider lily disease.


  • CABI Abstract: Disease of Spider Lily
  • New Disease Reports
  • The USDA National Arboretum
Keywords: anthracnose disease, spider lily disease, leaf decay

About this Author

Loraine Degraff has been a writer and educator since 1999. She recently began focusing on topics pertaining to health and environmental issues. She is published in "Healthy Life Place" and "Humdinger" and also writes for Suite101. Degraff holds a Master's degree in Communications Design from Pratt Institute.