Fireworm moths can be very very annoying for most of the time. Once they lay their eggs on your plant's foliage and left unnoticed, they feed off of the plant thus escalating a minimal damage to a severe one. First to do is to remove the eggs to prevent further spread and damage. And most important of all, you should keep your garden clean and well-maintaned at all times. Here are some other ways on how to treat and control fireworm moths.

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Source: Gardening Know How

Kaufman p.271, Christoneura rosaceana is very similar