Effet bio-insecticide de l’extrait hydro-alcoolique de la menthe et le purin de l’ortie in vivo sur la mineuse de tomate Tuta absoluta

Abstract

This study aims at proposing alternative solutions based on the use of natural products "bio insecticide of vegetable origin". In these contexts, we evaluated in vivo the insecticidal activity of Mentha spicata hydroalcoholic extract and the nettle manure (Urtica dioica) on tomato leafminer T.absoluta. To meet this objective, mint leaf mining, and nettle maceration, was performed to assess its toxicity to T.absoluta. The hydro-alcoholic extract of mint and the nettle manure gave a remarkable activity by adding to the batches of control. "in vivo". The extract and the nettle manure were tested by adopting the method of toxicity by direct contact or by spraying. The hydroxyl alcohol extract exhibited a remarkable insecticidal effect compared to the nettle manure against the in vivo tomato leafminer.