A fast growing problem How can we stop SHB spread? Entrance Reducers Honey bee stock.

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Presentation transcript:

A fast growing problem

How can we stop SHB spread? Entrance Reducers Honey bee stock

Hood, M Bee World Do entrance reducers affect SHB invasion? Ellis, J. et al J. Econ. Entomol

Timeline of Measurements Recorded # SHB, # frames adult bees, # frames brood & removed all SHB Introduced entrance reducers in half of the colonies and removed all SHB in all colonies Made uniform packages

Colonies with entrance reducers 9 Italian colonies 9 Russian colonies

Colonies with regular entrances 9 Italian colonies 8 Russian colonies

Do entrance reducers affect SHB invasion? No overall effect, p=0.1596

Do entrance reducers affect SHB invasion? p=0.5381p=0.1994p=0.1308p=0.4435

What about other colony factors? p=0.3847p=0.5591

Does honey bee stock affect SHB invasion? Overall effect, p=0.0176

Does honey bee stock affect SHB invasion? p=0.0255p=0.3204p=0.0280p=0.0207

p=0.2708p= What about other colony factors?

What do we know at this point?  Entrance reducers  Honey bee stock

Continuing research