Potential of Aqueous Extracts From Some Plants For the Control of Plant Parasitic Nematodes, Heterodera Avenae, Pratylenchus Thornei And Pratylenchus Penetrans

Cereal cyst nematodes and Root lesion nematodes are important plant parasitic nematodes in Turkey. Extracted solutions of some plants were evaluated for their potential on control of plant parasitic nematodes. In this study, different concentrations of the solution were extracted from 12 different dried plants and the solution were tested against the second stage juveniles of the plant parasitic nematode Heterodera avenae, Pratylenchus thornei, and P. penetrans. These plants were dried at 60 oC for 3 hours in drying oven, and then they were chopped up and replaced with water. In the experiments, concentrations of 1, 2.5, 5 and 10% were used for dried plant material and the measurements were performed on 6, 12 and 24 hours awaited concentrations. The most effective treatments on immobilized second-stage juvenile were observed on 24 hours awaited concentrations of the plants. Also, the best concentration is caused by the 10% concentration. The results suggest that the most effective of leaf powder extract of Radix eremuri, Nerium oleander, Eucalyptus camaldulensis could be potential nematicides against H. avenae, whereas P. thornei and P. penetrans were less affected by these plants when it was compared H. avenae. This experiments will be informative effect of plant extracts for field studies on Cereal Cyst and Root Lesion nematodes.This study was supported by Ç.Ü. BAP 11991