Acta Entomologica Sinica (1997) 40, 261-264

Fanghai Wang and He Gong (1997)
[The role of ecdysteroids on diapause of Helicoverpa armigeraThe role of ecdysteroids on diapause of Helicoverpa armigera]
Acta Entomologica Sinica 40 (3), 261-264
Abstract: The ecdysteroids in the haemolymph of larvae and pupae from diapause and non-diapause destined Helicoverpa armigera were measured by radioimmunoassay. It was found that the ecdysteroid titer in the prepupal stage of diapause-destined pupa was higher than that of non-diapause-destined one. There was a significant difference in titer, of ecdysteroids between diapause and non-diapause pupae of H. armigera, the ecdysteroid titer in the diapause pupae was much lower. Pupal diapause in H. armigera could be immediately terminated with the injection of 20-hydroxyecdysterone.
(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.
	Helicoverpa armigera