Toxicity of Aqueous and Powdered Sparrow grass, Asparagus africanus to Meloidogyne incognita on egg plant.

Abstract

The efficacy of aqueous plant extracts and dry powder from sparrow grass, Asparagus africanus in the control of root-knot nematode, Meloidogyne incognita was investigated in an experiment using potted plants of Solanum melongena var. black beauty. The experimental eggs plants were inoculated with two nematode population levels [0 and 20,000 eggs] and plants were inoculated with two nematode population [aqueous extract dry power and a combination of the two at three different doses [o% /Ot/ha, 50%/ ingredients were carried out plus infrarred spectroscopy of extracts of the leaves, roots and stems of A. Africanus. The results revealed that the different forrms and levels of the test plant used reduced the incidence and adverse effects of Meloidogyne spp on the growth and yield of egg plant. All the measure parameters; vegetative and root parameters were significally better in treated plants than for the untreated control. However, the combination of the higher levels of treatment 100% [aqueous]/3,Ot/ha [powder] were significally more effective than the otherrs, either singly on in combination. Phytochemical screening showed that all the parts examined contained mixture of similar chemical compounds