CONTROLE ALTERNATIVO DE Rotylenchulus sp. EM COENTRO

Abstract

Vegetables are considered an essential component of human food, as they are an excellent source of calories, carbohydrates, including fiber, minerals and vitamins. Coriander is widely consumed in several regions of Brazil, especially in the North and Northeast regions and to a lesser extent in the Southeast region. The presence of nematodes in areas of vegetable production has been responsible for high damages, resulting in large economic losses and also a great reduction in productivity. The present work had the objective to determine the efficiency of aqueous extracts of plant species in the control of the phytoparasite nematode, Rotylenchulus sp. in the coriander culture. Collections of soil infested with Rotylenchulus sp. Were extracted, quantified and identified. For the production of the plant extracts one gram of the dried material was used for 10 mL of distilled water, using leaves of marigold, crotalaria and mucuna seeds. The evaluations were made after the crop complete its cycle that is of 45 and it was evaluated fresh root mass, dry mass of the area and population of Rotylenchulus sp. With application of extracts in the soil it was possible to observe a reduction in the population level of the nematode and for the dry mass of the area and fresh root mass the extracts did not influence. Aqueous extracts of plant species are efficient in controlling the phytonematoid, reducing its population by more than 50%.