PRECS student projects

Document Type


Publication Date

Spring 2023


Honey bees are killed by Israeli acute paralysis virus (IAPV). Because this virus has no cure, it is important to lessen its impact on bees through proper nutrition. This project explores the effects of differing protein to lipid (P:L) ratios in pollen on honey bee susceptibility to this virus.

Over three trials, bees in cages were incubated for 3 days to resemble hive conditions. Two doses of IAPV (10-3 & 10-2) and a negative control were used, along with five P:L ratios (1.5, 2.5, 11.5, 16.5, & 21.5:1) and a sucrose-only diet. These treatment groups were combined to create a total of 18 treatments (three doses by six diets).

After feeding infected bees diets altered with either casein or canola oil (P or L) mortality was measured every 12 hours. Resulting data found significant differences in mortality rates between diet treatments among bees infected with a 10-2 dose. No significant differences between diets were found in the negative control and 10-3 groups.


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Research featured in this poster has been conducted with the cooperation of the Department of Entomology at the University of Illinois at Urbana-Champaign.



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