Some Recent Approaches to ControlTuta absolutain Tomato Under Greenhouse Conditions

Tuta absoluta (Meyrick) is considered the major pest that attacks tomato in many countries. Some insecticides (indoxacarb, imidacloprid) and non-traditional methods (culture filtrate of Bacillus thuringiensis, Artemisia cina extract, clove oil and nanosilica) were evaluated against T. absoluta in tomato under greenhouse conditions. Furthermore, GC-MS analysis was carried out to identify the chemical components of B. thuringiensis culture filtrate as well as A. cina and clove oil extracts. Nanosilica was the most effective treatment against T. absoluta followed by A. cina, imidacloprid A. cina, indoxacarb, filtrate of B. thuringiensis, imidacloprid, indoxacarb A. cina and clove oil treatments, respectively. The mixing of the tested insecticides with A. cina improved the efficiency against the tested insect relative to using insecticides alone. The results suggest possible use of the tested natural products and nanosilica as alternatives for T. absoluta control. Also, this study suggests the possible mixing of the A. cina extract with the tested insecticides to minimize health risk and environmental pollution.