Acrida (1973) 2, 319-332

D.M. Baines, E.A. Bernays and E.M. Leather (1973)
Movement of food through the gut of fifth-instar males of Locusta migratoria migratorioides (R. and F.)
Acrida 2, 319-332
Abstract: 1. The rate of movement of food through the gut of Locusta nymphs was markedly increased at higher temperatures, while relative humidity had no independent effect.
2. Different grass foods showed similar rates of movement, although crop emptying was faster after ingestion of soft young Lolium leaves than after ingestion of tougher older leaves of Agropyron or Bambusa.
3. A single meal in a normal feeding sequence passed through the gut quickly, and it was found that the presence of food after the test meal generally increased the rate of passage of the test meal.
4. In all cases liquids from the food passed back more quickly than solid matter.

1. La vitesse de cheminement de la nourriture à travers le tube digestif des larves de Locusta est nettement accrue aux températures élevées, alors que l'humidité relative n'a pas d'effet.
2. Les différentes plantes consommées cheminent à des vitesses comparables bien que le tube digestif se vide plus rapidement après ingestion de jeunes feuilles de Lolium qu'après ingestion de vieilles feuilles d'Agropyron ou de Bambusa.
3. Un seul repas au cours du cycle alimentaire normal passe rapidement à travers le tube digestif : la présence de nourriture après le repas expérimental augmente généralement la vitesse de passage.
4. Dans tous les cas, la partie liquide de la nourriture chemine plus rapidement que la partie solide.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Locusta migratoria