| Autor: |
Sedy, K. A., Koschier, E. H. |
| Předmět: |
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| Zdroj: |
Journal of Applied Entomology; Jul2003, Vol. 127 Issue 6, p313-316, 4p |
| Abstrakt: |
Two constituents of essential oils, carvacrol and thymol, were tested for their effects on the feeding activity, oviposition preference and oviposition rate of Frankliniella occidentalis and Thrips tabaci . Given a choice between treated and untreated leaf discs, F. occidentalis avoided ovipositing on leaf discs treated with 1 or 0.1% thymol. In no-choice experiments, 1 and 0.1% thymol and 1% carvacrol resulted in a reduced oviposition rate of F. occidentalis compared with the control. Both constituents caused a slight reduction of the feeding damage of F. occidentalis . 1 and 0.1% carvacrol had a pronounced deterrent effect on the oviposition site selection of T. tabaci . Both constituents served as anti-ovipositants for both thrips species, albeit F. occidentalis was more affected than T. tabaci . [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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