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benzoquinones

International Journal of Tropical Insect Science (1)

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Insect antifeedant, growth-inhibiting and larvicidal compounds from Rapanea melanphloes (Myrsinaceae)
J. O. Midiwo, R. W. Mwangi, Y. Ghebremeskel
Journal:

Insect Science and Its Application / Volume 16 / Issue 2 / June 1995

Published online by Cambridge University Press:

19 September 2011, pp. 163-166

Print publication:

June 1995
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The already known benzoquinone, embelin (mixed with rapanone), and two new benzoquinones, myrsinone and myrsinaquinone, were isolated from the Myrsinaceae plant, Rapanea melanphloes (L), Mez. All the three compounds showed antifeedant activity when bioassayed on nymphs of the desert locust, Schistocerca gregaria (Forsk). They also inhibited growth of second-instar larvae of mosquito Aedes aegypti at low doses, and had acute lethal effects at higher doses.