Some Field Applications for Controlling Tuta absoluta Meyrick (Lepidoptera;Gelechiidae) in Egypt

Document Type : Original Article

Authors

1 Plant Protection Research Institute (PPRI), Agriculture Research Center (ARC), Dokki 12618, Giza, Egypt.

2 Plant Protection Research Institute (PPRI), Agriculture Research Center (ARC), Dokki 12618, Giza, Egypt

Abstract

The tomato leafminer, Tuta absoluta (Meyrick), is one of the key pests of tomato crop in Egypt. Chemicalcontrol and essential aromatic oils had been the main method of controlling it. However, the study aims to evaluated chemical pesticide, essential aromatic oils   (Garlic, Dill) and mineral oil alone and in binary mixtures, to identify their impact on the population densities of T. absoluta insect pest as well as their effects on the yield of tomato. The results showed that during the two seasons 2017 and 2108, the leafminer, T. absoluta recorded three generations in both seasons. When using chemical pesticide, essential aromatic oils   (Garlic, Dill) and mineral oil alone and in binary mixtures found highly significant differences between the thirteen tested compounds. The pest control were using 4cm Coragen 20% SC / 25cm mineral oil, 3cm Coragen 20% SC / 25cm mineral oil, 4cm Voliam Flexi 40% WG / 25cm mineral oil and 40cm Dill oil  / 25cm mineral oil showed highly mortality .the low effect was using 20cm Garlic oil / 25cm mineral oil.

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