Integrated pest management in rose greenhouses using Franklinothrips vespiformis againts thrips
2008
Nammour, Doummar | Pizzol, Jeannine | Poncet, Christine | Ziegler, Jean-Pierre | Voisin, Sophie | Reynaud, Philippe | Olivier, N. | Paris, B. | Maignet, Pascal
Thrips have become major pests in rose greenhouses of southern France and Integrated Pest Management (IPM) programs do not provide reliable control in summer. This study was undertaken in 2006, on 2 three rose cultivars ('Aubade', 'Miss Paris' and 'Sayonara'), in two 130 M greenhouses at the CREAT experimental station (Nice, Alpes Maritimes, France). The predatory mite Neoseiulus cucumeris (Oudemans) [Acarina: Phytoseiidae], currently the beneficial most widely used against these pests, is of limited efficiency where temperatures are high and thrips infestation severe. We therefore supplemented the use of N. cucumeris with another predator, Franklinothrips vespiformis (Crawford) [Thysanoptera: Aeolothripidae]. Thrips were sampled using a rose shaking method to assess their population dynamics. Seven different species of thrips were identified in the samples. Thrips tabaci Lindeman and Frankliniella occidentalis Pergande were the most abundant. Two different species belonging to the Aeolothrips genus were also present. The combined use of F. vespiformis and N. cucumeris during the period of high thrips infestation in the greenhouse gave a better result than the use of N. cucumeris alone.
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