The effects of sucrose and tannin on oviposition by the western flower thrips

Whittaker, M. S. and Kirk, W. D. J. (2004) The effects of sucrose and tannin on oviposition by the western flower thrips. Acta Phytopathologica et Entomologica Hungarica, 39 (1-3). pp. 115-121. ISSN 0238-1249

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In no-choice experiments, the addition of sucrose to a diet of water had no effect on oviposition rate whether or not pollen was also present. However, the addition of 1% or 5% tannic acid to a diet of water decreased the oviposition rate by 68% and 86% respectively when pollen was also present. A novel design of U-tube cage allowed thrips to choose between two oviposition and feeding substrates in the presence of pollen. When thrips were offered a choice between 5% tannic acid solution and water, 88% fewer eggs were laid in the tannic acid. However, the total number of eggs laid per U-tube was not significantly different from in control U-tubes with water as the only substrate. It is concluded that tannin acts as a feeding deterrent and/or oviposition deterrent rather than as a toxin.

Item Type: Article
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
Q Science / természettudomány > QK Botany / növénytan > QK10 Plant physiology / növényélettan
Q Science / természettudomány > QL Zoology / állattan > QL01 Systematic zoology / állatrendszertan
Depositing User: xBarbara xBodnár
Date Deposited: 23 Oct 2017 11:51
Last Modified: 23 Oct 2017 11:51

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