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Precocene-induced metamorphosis in the desert locustSchistocerca gregaria

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Summary

50–100% of the 2nd, 3rd and 4th instar nymphs ofSchistocerca gregaria exposed to precocene 2 by contact method metamorphosed precociously from the instar treated. The corpora allata of the precocious adults were degenerate. Topical application of a juvenile hormone analogue (ZR-512) induced in the precocious adults the colouration characteristic of sexually mature adults.

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Authors and Affiliations

  1. Department of Biological Sciences, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada

    G. C. Unnithan, K. K. Nair & A. Syed

Authors
  1. G. C. Unnithan
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  2. K. K. Nair
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  3. A. Syed
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Additional information

This research was supported by the N.S.E.R.C. grant No.A4669.

We thank Dr G. B. Staal, Zoecon Corporation, Palo Alto, California, for the generous gift of precocene 2 and ZR-512, M. Hota for rearing the insects, R. G. Long, for the photographs, and Jann Aitken for technical assistance.

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Unnithan, G.C., Nair, K.K. & Syed, A. Precocene-induced metamorphosis in the desert locustSchistocerca gregaria. Experientia 36, 135–136 (1980). https://doi.org/10.1007/BF02004021

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