Acta Entomologica Sinica (1997) 40, 151-157

Zhongxian Lü, Cui Hu and Zhangfa Yang (1997)
[Absorption and utilization of nitrogen and sugar in diet by the Asian corn borer Ostrinia furnacalis larvae]
Acta Entomologica Sinica 40 (2), 151-157
Abstract: The absorption and utilization of nitrogen and sugar in diet by the Asian corn borer (Ostrinia furnacalis) larvae reared on artificial diets with different levels of nitrogen and sugar were studied. The results showed that the absorption of nitrogen decreased while that of sugar increased with larval development from the third to fifth instar. In the fifth instar larvae the absorption of sugar increased with the increase of nitrogen content in the diet. In the fifth instar larvae the consumption rates of nitrogen and sugar increased but the nitrogen utilization rate and the nitrogen content decreased when fed on the diet with higher sugar content. The nitrogen content in larvae decreased significantly from the third to fifth instar when they were fed on the diet with 3.01% nitrogen content, due to the decrease in nitrogen utilization rate. These results indicated that the nitrogen and sugar contents in diets influence their absorption and utilization by the larvae, and sugar is more important than nitrogen for older larvae.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)

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.
	Ostrinia furnacalis