Sacbrood disease
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 Gallery: Zach's Bee Photos [(c) Zachary Huang], for Prints   Album: Disease & Pests   
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Sacbrood is caused by a bee virus (Morator aetotulas). Larvae die right before or shortly after the cells are capped. Here is a dead larva right before the cell is fully capped. Photo by Prof. M.V. Smith, University of Guelph.*

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A closeup of the head of sacbrood virus killed larva. Photo by Prof. M.V. Smith, University of Guelph.*

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The heads of larvae killed by sacbrood virus, with the cell capping removed. Photo by Prof. M.V. Smith, University of Guelph.*

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The sabrood killed larva (actually a prepupa) removed from the cell. Photo by Prof. M.V. Smith, University of Guelph.

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Side view of dead larva killed by sacbrood virus. Notice the discoloration and hardening of cutiles near the head. Photo by Prof. M.V. Smith, University of Guelph.

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 Gallery: Zach's Bee Photos [(c) Zachary Huang], for Prints   Album: Disease & Pests   
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