EFEITO DO EXTRATO DE CRAVO-DE-DEFUNTO NO CONTROLE DE Meloidogyne Javanica NA CULTURA DO TOMATEIRO

Abstract

Gannet nematodes (Meloidogyne) cause great damage to the tomato crop (Solanumlycopersicum L.), and may limit production if proper management is not done. Chemical control is used to control these parasites, but they have high toxicity, risk of environmental contamination, high cost, low availability in developing countries, and resistance selection. Due to these factors, biological control has been widely used, mainly the use of plant extracts and essential oils of plants, such as Cravo - de - Defunto extract. There are reports of efficiency in the control of nematodes, using the commercial product Microgeo, a biofertilizer, that promotes the recovery of the soil, optimizing other agricultural inputs and factors of production. In relation to these factors, the objective of this study was to verify the efficiency of the Carnation Extract in the control of Meloidogynejavanica in the Tomato (Solanumlycopersicum L.) culture, compared to the BiofertilizerMicrogeo. The experiment was carried out in a completely randomized design (DIC), with 3 treatments and 5 replicates (Tomato Plants + Microgeo, Tomato Plants + Cravo-de-Defunto Extract and Witness), inoculating 5000 eggs of Meilodogynejavanica, and After 70 days, the number of eggs per root system was verified, as well as fresh root matter mass and shoot fresh matter mass and RF. It is possible to conclude that the treatments where the extract of Cravo-de-Defunto were used, had a greater efficiency in the control of nematodes Meloidogynejavanica in the tomato crop in relation to the other treatments.