Atratividade de adultos de Chrysoperla externa (Hagen, 1861) aos compostos voláteis de coentro, endro e erva-doce (Apiaceae) em condições de laboratório 1/Attractiveness of Chrysoperla externa (Hagen, 1861) adults to volatile compounds of coriander, dill and fennel (Apiaceae) in laboratory conditions
The objective of this study was to evaluate the attractiveness to adults of the predator Chrysoperla externa. Leaves and stems of plants of coriander, dill and fennel, collected at 30 and 60 days after sowing, were used here. Data were analyzed by the ÷^sup 2^ test, with expected frequencies of 25%....
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| Published in | Revista Ceres Vol. 62; no. 1; p. 37 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Vicosa
Universidade Federal de Viçosa-UFV, Revista Ceres
01.01.2015
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| Online Access | Get full text |
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| Summary: | The objective of this study was to evaluate the attractiveness to adults of the predator Chrysoperla externa. Leaves and stems of plants of coriander, dill and fennel, collected at 30 and 60 days after sowing, were used here. Data were analyzed by the ÷^sup 2^ test, with expected frequencies of 25%. The yield of the essential oil of three species of plants at 30 and 60 days after sowing was evaluated by using the method of hydrodistillation. The chemical composition of the oils was determined by gas chromatography coupled with mass spectrometer. It was found that virgin adults have a preference for coriander plants, while the mated insects prefer fennel, both collected at 30 days. Plants at 60 days did not provide attractiveness response to adults of C. externa. The oil yield tended to increase with the phenological development of the plant. The chemical composition of coriander oil revealed (2E)-decenal and decanal as major components, and the highest concentration was of (E)-anethole for fennel. |
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| ISSN: | 0034-737X 2177-3491 |