Interaction of trap colour attractiveness with morphological variability of the thrips Frankliniella occidentalis (Pergande 1895) |
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| Authors: | J Larki P Kilochyckij V Fedorenko P Chumak |
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| Institution: | 1. Faculty of Biology , Taras Shevchenko Kyiv National University , 64, Volodymirs'ka Str., Kyiv , 01601 , Ukraine jamshid_larki@yahoo.com;3. Faculty of Biology , Taras Shevchenko Kyiv National University , 64, Volodymirs'ka Str., Kyiv , 01601 , Ukraine;4. Institute of Plant Protection of National Academy of Agrarian Sciences , 33, Vasyl'kivs'ka Str., Kyiv , 03022 , Ukraine;5. Acad. O.V. Fomin Botanic Garden of Taras Shevchenko Kyiv National University , 1, Kominterna Str. 01032, Kyiv, Ukraine |
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| Abstract: | In the latitude of Kiev, 80% of Frankliniella occidentalis (Pergande 1895) population was caught on the colour traps from 11 a.m. to 5 p.m. in summer and from 11 a.m. to 3 p.m. in winter. Meanwhile, 10% of the population did not react to the colour traps at all (“passive” individuals), whereas for 20% of the population it was impossible to determine the clear colour with attractive properties. The thrips attracted with blue and yellow color traps, had more massive and variable body parts to be connected with their flight. Their antennae and segment sizes were significantly smaller than compared to the control variant, which could be explained by eyesight domination over other organs of sensory orientation. The indices of heterogeneity of morphological features can be used as evaluation criteria for the adaptive variability and stability of the thrips population. |
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| Keywords: | morphological variability colour attractiveness Thysanoptera Frankliniella occidentalis protected environment (greenhouses) |
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