Control of crop emptying in the blowfly

Alan Gelperin

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


The control of crop emptying in the blowfly, Phormia regina, was investigated by the technique of X-ray photography. Increasing the osmotic pressure of the solution in the crop slows crop emptying. This effect is independent of the nutritive value, stimulating power, and viscosity of the solution. Increasing the osmotic pressure of the blood also greatly slows crop emptying. Blood osmotic pressure is the controlling factor. The effect of increased blood osmotic pressure in slowing crop emptying is independent of nervous or endocrine elements.

Original languageEnglish (US)
Pages (from-to)331-345
Number of pages15
JournalJournal of Insect Physiology
Issue number3
StatePublished - Mar 1966

All Science Journal Classification (ASJC) codes

  • Physiology
  • Insect Science


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