Utilization of the root-knot nematode, Meloidogyne incognita for monitoring nematicide movement in soil

Document Type : Original Article

Authors

1 Pesticide Chemistry Department, Faculty of Agriculture, University of Alexandria, Alexandria.

2 Pesticide Chemistry Department, Faculty of Agriculture, University of Alexandria, Alexandria

10.21608/jpces.2003.459455

Abstract

Leachability of carbofuran, oxamyl and terbufos in relation to its efficiency against the root-knot nematode, Meloidogyne incognita on tomato seedlings was studied in soil columns under laboratory conditions. In addition, the quantity of nematicide residues in leached water was biologically assayed using Culex pipiens larvae The results showed that leaching of carbofuran or oxamyl was rapid through sandy clay loam soil than that of clay loam soil. However, these nematicides were easily leached out from both soils and had better effect against nematodes in the lower depths than on the surface- Conversely, terbufos acted better on the surface than in deeper layers of both soil types. Few quantities of carbofuran and oxamyl were detected in the leachate from both soils, while terbufos was only found in sandy clay loam soil leachate. The nematicides amounts recovered from column were proportionally related to the amounts of water applied and to the soil type.

Keywords

Journal of Pest Control and Environmental Sciences
Volume 11, Issue 2
December 2003
Pages 27-38

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