polyhedrosis

/ˌpɑlihɪˈdroʊsɪs/
noun
  1. A viral disease that affects insects, especially caterpillars, causing the breakdown of body tissues.
    • Polyhedrosis can spread quickly through a colony of silkworms, causing major losses.
    • The farmer noticed that many caterpillars had died from polyhedrosis, which helped control the pest population.
    • Scientists study polyhedrosis to develop natural pesticides that are safe for crops.