Influence of five plant dried leaf powders on eggplant plants infected with Meloidogyne incognita under greenhouse conditions

Abstract

A greenhouse trail was conducted to study the influence of five plant driedleaf powders i.e. cabbage, sorrel, spinach, rocket and tomato in comparing withoxamyl on root-knot nematode M. incognita infecting eggplant under greenhouseconditions. All treatments showed remarkable increase in plant growth parametersas well as reduced nematode criteria. Cabbage dried leaf powder showed highereffectiveness of the tested botanical dried leaf powders and enhanced plant growthparameters with significant increase values. On the other hand, spinach dried leafpowder as soil amendments overwhelmed other treatments in suppressingnematode population in soil (78.3%), root galling number (87.0%), egg-masses(91.5%) and eggs / one gram root (91.5%) respectively. However, the least valuesof the same nematode criteria was achieved by sorrel treatment with values of34.0,77.3,90.5 and 89.3 respectively, comparing to nematode alone. The recordedresults showed a potential properties of using such plant dried leaf powders as ecofriendlycontrol method instead of chemical pesticides.