Chilled Brood

Chilling occurs most frequently during the early part of the spring, when brood nests expand rapidly. There is a shortage of adult bees to cover the entire brood combined with a sudden drop in temperature. Dead bees are found usually on the fringes of the brood area.


  • Yellowish, tinged with black on segmental margins
  • Brownish or black colored
  • Crumbly
  • Pasty
  • Watery
  • Punctured and uncapped
  • Pupae are decapitated by adult bees


  • environment - cold temperature


  • Clinical signs


Article Reference