Use of biorational insecticides for the control of Tuta absoluta (Meyrick) infestations on open field tomato

• Autores: Paolo Lo Bue, Sadek Abbas, Ezio Peri, Stefano Colazza
• Localización: New medit: Mediterranean journal of economics, agriculture and environment = Revue méditerranéenne d'economie, agriculture et environment, ISSN 1594-5685, Vol. 11, Nº. Extra 4 (Suplemento), 2012 (Ejemplar dedicado a: Special issue on Organic farming: a sustainable model for transition in the Mediterranean), págs. 39-41
• Idioma: inglés
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• Resumen

  • Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), the tomato leaf miner, is one of the most devastating pests affecting tomato crops in Italy. Management of T. absoluta was assessed in open-field tests using three biorational insecticides, Azadirachtin, Bacillus thuringiensis var. kurstaki, and Beauveria bassiana, and a combination of three synthetic insecticides, Emamectin, Indoxacarb and Metaflumizone, as a control treatment. Our results showed that only the combination of Azadirachtin � B. thuringiensis was able to reduce the impact of tomato leaf miner on the fruit�s marketable production similarly to the control treatment. This finding suggests that biorational insecticides are a good alternative to synthetic ones. Possible use of biorational insecticides in the management of tomato leaf miner in organic farming system is discussed.