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Retrieval responsiveness of honey bees when insecticides are applied 24 h before learning sessions. (A,B) bees treated with 10 ng/bee or 100 ng/bee of ACT or DEL, respectively. Data are expressed as the percentage of PER performance to antennal stimulation with 40% sucrose. Significant results are indicated by * p < 0.05. Each group represents n = 90 bees. Bars represent standard errors. Acetamiprid (ACT), deltamethrin (DEL), and control groups (Ctl).
