What time of year do horse flies come out? - Project Sports
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What time of year do horse flies come out?

1 min read

Asked by: Brad Quick

They become active when the weather gets warm and continue to persist throughout the summer and into fall. The adult life span is 30-60 days and the females must consume a blood meal to produce fertile eggs. One female will lay 100-1000 eggs per year. The male flies do not bite.