The Effects of Diflubenzuron on the Cuticle and on Hemolymphatic Ecdysteroids of Fifth Instar Nymphs of the Desert Locust, Schistocerca Gregaria (Orthoptera: Acrididae)

G. Tail; F.Z. Kara; B. Doumandji-Mitiche; P. Porcheron

doi:10.1665/034.024.0206

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1 December 2015 The Effects of Diflubenzuron on the Cuticle and on Hemolymphatic Ecdysteroids of Fifth Instar Nymphs of the Desert Locust, Schistocerca Gregaria (Orthoptera: Acrididae)

G. Tail, F.Z. Kara, B. Doumandji-Mitiche, P. Porcheron

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J. of Orthoptera Research, 24(2):77-81 (2015). https://doi.org/10.1665/034.024.0206

Abstract

The effect of diflubenzuron (DFB), a benzoylphenyl urea insecticide, on the cuticle in newly molted fifth-instar nymphs of Schistocerca gregaria was examined. While there was an increase in dry weight of the cuticle in untreated nymphs, DFB treated nymphs had a reduced cuticle dry weight, with significant reductions in chitin levels. In a second series of experiments, DFB significantly reduced (p < 0.05) ecdysteroid titers in the hemolymph during nymphal development, leading to disruption of molting.

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G. Tail, F.Z. Kara, B. Doumandji-Mitiche, and P. Porcheron "The Effects of Diflubenzuron on the Cuticle and on Hemolymphatic Ecdysteroids of Fifth Instar Nymphs of the Desert Locust, Schistocerca Gregaria (Orthoptera: Acrididae)," Journal of Orthoptera Research 24(2), 77-81, (1 December 2015). https://doi.org/10.1665/034.024.0206

Published: 1 December 2015

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