| Various aspects of integrated pest management (IPM) for onion thrips, Thrips tabaci Lindeman [Thysanoptera: Thripidae], in greenhouse cucumber (Cucumis sativus) were studied. An experiment was conducted to determine and compare the predation rate of the gravid females of two predatory mites, Amblyseius cucumeris (Oudemans) and Iphiseius degenerans (Berlese) [Acarina: Phytoseiidae], on first and second instar onion thirps larvae on, cucumber cv 'Jessica' leaf disc arenas.; The effect of the addition of the volatile chemical attractants, rho-anisaldehyde (4-methoxybenzaldehyde) and ethyl nicotinate (3-pyridinecarboxylic acid), to commercially available blue and yellow sticky traps was examined for adult onion thrips in greenhouse cucumber production.; The spatial distributions of Thrips tabaci larvae and adults and the predatory mite, Amblyseius cucumeris, on greenhouse cucumbers were calculated using two variance-mean models: Iwao's patchiness regression (IPR) and Taylor's power law (TPL). (Abstract shortened by UMI.)... |
