Bacterial counts (CFUs)^A for honey bee crops^B cultured under different conditions.

A<p>Mean ± SE colony forming units per crop; multiply listed values by 10⁵,</p>B<p>Crop is the foregut or social stomach. Sample size in parentheses.</p>C<p>MRS: de Man, Rogosa and Sharpe media; pH 5.7, TSA: Tryptic soy agar; pH 7.3</p>D<p>Atmosphere; O₂ = Ambient conditions, CO₂ = Ambient conditions containing 5% CO₂.</p>E<p>Workers with empty crops processing nectar.</p>F<p>Workers with full crops attending to brood.