Mortality and motility of Meloidogyne incognita in aqueous extract of rosemary.

Nematodes , especially Meloidogyne sp. , are hard to control due their aggressiveness and the lack of products registered for this purpose . Therefore, the objective of this work was to evaluate the in vitro nematicide / nematostatic potential of 1 %, 5 % and 10 % of aqueous extract of Rosmarinus officinalis (rosemary) against M. incognita . The experiment was conducted in the Nematology Laboratory of Unioeste , Marechal Cândido Rondon, Parana State . The experimental design was completely randomized, with four treatments , using three concentrations of aqueous extract of rosemary and water as control treatment, with five replicates each . Motility and mortality of second stage juveniles (J2) were evaluated after 24 and 48 h , respectively. The rosemary extract showed nematostatic effect, with 97% of nematode movement reduction, and nematicide effect, with 83% of mortality .