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

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 Beau...

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Bibliographic Details
Published in:New Medit 2012-12, Vol.11 (4 SI), p.S39
Main Authors: Bue, P. Lo, Abbas, S, Peri, E, Colazza, S
Format: Article
Language:English
Subjects:
Control
Insecticides
Tomatoes
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Summary: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. Keywords; Tomato leaf miner, Azadirachtin, Bacillus thuringiensis, Beauveria bassiana.
ISSN:1594-5685