Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Effects and economics of different treatments against the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) at harvesting time.

Abstract

Nine field treatments against the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) infesting tomato plants were carried out in Fayoum governorate, Egypt in 2012 and 2013 seasons. In 2012, the best results were obtained by using a combination of the egg parasitoid Trichogramma evanescens West. and the chemical insecticide Coragen 20%. This treatment gave the least % infestation in tomato fruits and the highest yield/feddan. The treatment of pheromone trap+Coragen ranked second, while the light trap+Coragen ranked third. In 2013, T. evanescens+the bio-insecticide Emamectin gave the best results, followed by the Trichogramma+Coragen and then the pheromone trap+Coragen. Economically, regarding the costs of application and obtained yield of tomato crop, Trichogramma+Coragen ranked first, followed by Trichogramma+Emamectin.