Effect of Marigold (Tagetes ereacta) and Argel (Solenostemma argel) plants and their extract on Banana Root-Knot Nematodes

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Date
2015-06-15
Authors
Maysoon Mohammed Sabah Elzein Daf Alla, Daf Alla
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uofk
Abstract
This study was initiated to shed some light on the influence of using marigold (Tagetes ereacta) and argel (Solenostemma argel) plants on controlling the root-knot nematodes infesting banana suckers. Under plantation conditions, the treatments consisted of growing marigold plants around banana suckers compared with non-treated suckers (control). Data were collected on the number of root-knot nematodes and banana growth attributes (height and diameter of pseudostem, number of leaves, leaf area, fresh and dry weights of leaves, pseudostems, corms and roots). The results revealed that growing marigold around banana suckers suppressed the number of root-knot nematodes, and this was reflected in greater values of overall growth attributes compared with non-treated suckers. A pot experiment was, also, conducted to investigate the impact of using aqueous extracts of marigold roots and both seeds and leaves of argel plants on root-knot nematodes infesting banana suckers. Number of nematodes and growth attributes were recorded at different times during the course of the experiment. The results revealed that all the parts used of both marigold and argel plants resulted in greater reduction in number of nematodes and enhance of growth attributes than the non-treated suckers (control). Generally, the application of aqueous extract of marigold roots was associated with greater suppression of root-knot nematodes than seeds or leaves of argel plants, which in turn resulted in more or less higher values of growth attributes than marigold roots extract treatment
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Effect of Marigold (Tagetes ereacta) and Argel (Solenostemma argel) plants and their extract on Banana Root-Knot Nematodes
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