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Développement d'un projet de protection contre Tuta absoluta sur tomate. Focus sur la recherche d'un parasitoïde oophage

Abstract : In 2008, a nex invasive pest on tomato crop was accidentally introduced in France : the South American tomato leafminer Tuta absoluta. Phytophagus larvae are responsible for damage with a reduction in photosynthesis and fruit damage, causing yield loss. Despite the existence of some treatments against the pest that have low toxicity for beneficials, this new pest was real risk to crops in Integrated Biological Protection and Organic Agriculture on tomato. In this context was developped the CASDAR Project "TutaPi" (2011-2014), funded by the French Ministry of Agriculture. After three years of research, the results are positive, both in terms of the development and the effectiveness of strategies, and the importance of the role of beneficials. Collaboration and complementarity of the partners of this projetc, from research, experimentation and development has improved the knowledge of the pest. It validated and provided effective strategies for producers to control T.absoluta that are adapted to different crop conditions. A combination of methods and beneficial insects, either commercially available or naturally occurring, are at the heart of the strategy. The release of the predatory mirid bug Macrolophus pygmaeus had good control efficiency on T.absoluta and results were improved by simultaneus releases of Trichogramma achaeae. Since the new French legislation on the introduction of non native macro-organisms, it was of interest to work on endemic parasitoids, with lees risk to the environment and better adapted to our environmental conditions. The aim was also to find a more efficient and less expensive oophagous parasitoid (easier to mass rearing and storable) than T.achaeae
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https://hal.inrae.fr/hal-02797452
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Submitted on : Friday, June 5, 2020 - 2:49:41 PM
Last modification on : Monday, September 27, 2021 - 9:54:06 AM

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  • HAL Id : hal-02797452, version 1
  • PRODINRA : 308695

Citation

Elisabeth Tabone, Maurane Buradino, Etty Colombel, Amélie Lefevre, Yannie Trottin, et al.. Développement d'un projet de protection contre Tuta absoluta sur tomate. Focus sur la recherche d'un parasitoïde oophage. Insectinov - Insectes : une filière d'avenir pour les biotechnologies, Dec 2014, Paris, France. ⟨hal-02797452⟩

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