Efeito da incorporação de folhas de nim ao solo sobre o complexo Fusarium x Meloidogyne em quiabeiro

Abstract

The objective of this study was to investigate the effect of soil ammendment with neem (Azadirachta indica) leaf on the complex Fusarium x Meloidogyne in okra (Abelmoschus esculentum) in greenhouse conditions. The treatments consisted of the addition of 25g or 50g of leaves per kg of soil and infested with M. incognita and Fusarium oxysporum f. sp. vasinfectum, together and separately, contained in pots with capacity of 2 L. Soil without supplement it served as the control. The experimental design was completely randomized with six replications and five plants per pot. The leaves were incorporate 30 days before planting and the evaluation 90 days later. The percentagem of dead plants was used to evaluate the efficiency of neem. The incorporation of 50g of fresh neem leaves was efficient in the control of both Meloidogyne and Fusarium separately as well as in their interaction. The incorporation of 25g of neem leaves was shown efficient just for the control of Meloidogyne separately.