EVALUATION OF SOME CHEMICAL NEMATICIDES AND ORGANIC FORMULATIONS IN MANAGEMENT OF ROOT KNOT NEMATODE MELOIDOGYNE SPP ON EGGPLANT. | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 14, Issue 0, March 2014, Pages 8-14 | ||
| Author | ||
| Qais k. Zewain | ||
| Abstract | ||
| This investigation has conducted in yearly naturally infested plastic house with root knot nematode,Meloidogyne spp located in Qoshtapa District- field of Haj. Kamil A. Abdulrahman which is located 12 km south of Erbil city during 2012-2013 agricultural season to evaluate the efficacy of two nematicides Vydate 24 L, Rugby 10 G and two organic formulations of Nemaclean, Protecto RZH and their combinations with enrooting stimulant compound -Rootex- against root knot nematode (RKN) on eggplant Solanum melongena L.-Barcelona variety. Standard agricultural practices for eggplant cultivation under green houses in Iraq were applied; and all mentioned compounds were used in its recommended doses. After application of above treatments, Fresh and dry weights for both of foliage and root/plant, plant length, plant tillers number, fruit weight, root knots number, infected plant number were counted after 10 weeks from plant transplanting date in plastic house. Percentages of disease incidence, disease severity, disease control efficacy and gall index were computed for all applied treatments. Results showed that all compounds used in this investigation have had a significant increasing effect on both of fresh and dry weight of foliage as well as averages of plant height, number of tillers and weight of fruits. No significant effect had observed for these compounds on wet and dry weight of root system except the treatment of Rootex and the treatment of Nemaclean + Rootex.Treatment with both of Protecto RZH + Rootex recorded highest averages of wet and dry foliage weight, plant height, tillers number and fruit weight 725 g, 115.9 g, 72.9 cm, 7.7 tiller and 78.4 g, respectively. Application with Rootex alone gave highest averages of wet and dry weight for root system 116.4 g and 36.7 g, respectively, while the treatment with both of Rugby 10 G + Rootex realized highest average of nematode control efficacy 47.6%. Significant decrease in disease incidence, disease severity and gall index of root knot Nematode on eggplant have observed in all treatments except Rootex treatment. Result showed also that all treatments except Rootex were achieved a significant increase in control efficacy percentage of the pest.Based on these results, we concluded the significant economic importance of root knot nematode on eggplant in green houses in Iraq and the possibility of its control for a good extend by using the combinations of each of Nemaclean, Protecto RZH or Rugby 10 G with rootex at its used dosages in this investigation. | ||
| Keywords | ||
| Meloidogyne spp; Nemaclean; Protecto RZH; Vydate; Rugby; Rootex | ||
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