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Chrysanthemyl 2-acetoxy-3-methylbutanoate: the sex pheromone of the citrophilous mealybug, Pseudococcus calceolariae |
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| Authors: | Ashraf M El-Sayed C Rikard Unelius Andrew Twidle Lee-Anne Manning David M Suckling Tania Zaviezo |
| Institution: | a The New Zealand Institute for Plant & Food Research Ltd, (PFR) PB 4704, Christchurch, New Zealand b School of Pure and Applied Natural Sciences, University of Kalmar, SE-391 82 Kalmar, Sweden c PFR, Hawke’s Bay Research Centre, Havelock North, Hastings 4157, New Zealand d Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Brasil 2950, Valparaíso, Chile e Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Santiago, Chile |
| Abstract: | Headspace volatiles collected from virgin females of the citrophilous mealybug, Pseudococcus calceolariae, contain three compounds not present in the headspace of control samples. The main female-specific compound is identified as 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl]methyl 2-acetoxy-3-methylbutanoate (chrysanthemyl 2-acetoxy-3-methylbutanoate). The other two compounds are identified as 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl]methanol (chrysanthemol) and 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropyl]methyl 2-hydroxy-3-methylbutanoate (chrysanthemyl 2-hydroxy-3-methylbutanoate). Traps baited with 100 μg and 1000 μg of chrysanthemyl 2-acetoxy-3-methylbutanoate captured 4- and 20-fold more males than traps baited with virgin females. |
| Keywords: | Chrysanthemyl 2-acetoxy-3-methylbutanoate Chrysanthemyl 2-hydroxy-3-methylbutanoate Chrysanthemol |
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