Ability of Royal Jelly to Hold a Larva in a Queen Cell (video) Cell Press Share Print E-Mail Loading video... Caption This video shows royal jelly in queen cell cups at pH 4.0 and 5.8. When the cups are turned downward, the larva on the pH 4.0 royal jelly is still adhered to the royal jelly, while the pH 5.8 royal jelly larva falls down. Credit Buttstedt et al./Current Biology Usage Restrictions Credit Required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.