Scientia Agricola (2007) 64, 476-481

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Edson Luiz Lopes Baldin, José Djair Vendramim and André Luiz Lourenção (2007)
Interaction between resistant tomato genotypes and plant extracts on Bemisia tabaci (Genn.) biotype B
Scientia Agricola 64 (5), 476-481
Abstract: The tomato (Lycopersicon spp.) productivity is severely reduced by attack of several insects and microorganisms. It is economically one of the most important crops that has been extensively cultivated in the Americas. Therefore, assays were performed in the greenhouse and the laboratory to evaluate the possible interaction between resistant tomato genotypes and plant extracts on the control of the pest Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) biotype B. This evaluation was performed for genotypes IAC-Santa Clara, PI-134417, LA-716, PI-134418, and PI-127826, and aqueous extracts from seeds of Azadirachta indica A. de Jussieu (Rutales: Meliaceae), branches and leaves of Trichilia pallida Swartz (Rutales: Meliaceae). In the greenhouse, spraying with extracts from seeds of A. indica, and leaves and branches of T. pallida reduced whitefly attraction with IAC-Santa Clara; on PI-134417, LA-716, PI-134418, and PI-127826 the extracts did not affect the attractiveness to the B. tabaci biotype B. Extracts from A. indica seeds and T. pallida leaves and branches reduced oviposition on IAC-Santa Clara; extracts from T. pallida branches reduced oviposition on PI-134417, PI-134418, and PI-127826, while the extract from A. indica seeds reduced oviposition in PI-127826. The extracts did not affect oviposition on LA-716. In the laboratory, the extracts increased the mortality of nymphs on the genotypes. The 'genotype × extract' interaction was significant, indicating an addictive effect between resistant genotypes and plant extracts on whitefly control.
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Full text of article
Database assignments for author(s): Edson Luiz Lopes Baldin, José Djair Vendramim

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
control - general

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Bemisia tabaci biotype MEAM1 Tomato (Solanum lycopersicum)
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