Answer: Unfortunately, I must apologize for the delay in responding to your question. This pest the red lily beetle has been spreading through New England and is potentially deadly to your bulbous (true)lilies as it can decimate a planting. Neem can be used to repel adults and kill larvae and Sevin will also be effective. Neem is best used early in the season when the larvae first appear. Be sure to read and follow the label instructions.
Q&A Library Searching Tips