Comparative performance of several novel organic formulations against root knot nematode Meloidogyne spp. on eggplant crop under greenhouse condition

摘要

This field trial was conducted in Erbil, Iraq under plastic house condition to evaluate the effectiveness of several novel organic formulations by its field recommended doses : Nemadead, Trevigo 20 SC, Trichozone and Propolis, in comparison with Oncal(Aminoforacarb) 5% G as a standard chemical nematicide on root knot nematode Meloidogyne spp. on eggplant crop under greenhouse conditions. The results showed significant effectiveness of these formulations in reducing both of gall index and numerical density of nematode in the soil by high rates reached up to 69.5 and 97.61%, respectively, for Nemadead treatment which was superior to the efficacy of the standard nematicide 55.5 and 91.62%, respectively. The results showed also the effective role of these formulations in improving the whole studied vegetative and root growth characteristics of eggplant crop by significant rates compared with standard nematicide and inoculated control treatment. Using of these tested organic formulations (Tervigo 20% SC, Nemadead and Trichozone) by its recommended application timing and rates could present good effective and relatively low cost alternatives for chemical nematicides in term of improving crop yield quantity and quality as well as human health and environment conservation.