Effects of Plant Leaf Extracts on Egg-Masses Hatching and Juveniles Mortality of the Root-Knot Nematode, Meloidogyne Javanica

Document Type : Original Article

Authors

1 Agric. Zool. and Nematol. Dept., Fac. of Agric. Al-Azhar University. Cairo.

2 Agric. Zool. and Nematol. Dept., Fac. of Agric. Al-Azhar University. Assiut Branch.

Abstract

The effects of plant extracts from fresh leaves of five different plants; Acasia
arabica, Ziziphusspina christi, Eucalyptus camaldulensis, Lawsonia inermis and
Dalbergia sissoo were evaluated against egg-masses hatching and juvenile
mortality of root-knot nematode, Meloidogyne javanica under laboratory conditions.
Results revealed that, all treatments extracts had significantly (P < 0.05) reduced in
the hatching of egg-masses. The maximum reduction occurred in Acasia arabica
with the concentration (S) was (97.13%) and the concentration (S/2) was (89.99%),
whereas the minimum reduction caused by Ziziphusspina christi with the
concentration (S) was (45.49%) and the concentration (S/2) was (24.63%). The
same effects of plant extracts against M. javanica juveniles, the most mortality of
second stage juveniles was observed in leaf extracts of Acasia arabica, and
Dalbergiasissoo with the concentration (S) was (100%) as regarding to and the
concentration (S/2) was (100%) in Dalbergia sissoo, while the least in Ziziphusspina
christi with the both concentrations S and S/2 (17.0 and 5.33%), respectively.

Keywords

Egyptian Journal of Agronematology
Volume 16, Issue 1
January 2017
Pages 21-29

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