Watermelon production is affected by root-knot nematode (RKN), as all varieties of the crop are susceptible. Studies have been conducted to identify readily available and environmentally safe nematicides for the management of RKN. Aqueous and powdered extracts of Chromolaena odorata (L) King and Robinson and Ficus mucuso Welw. ex Ficalho were applied alone and in combination. All data collected on growth, yield and nematode populations were subjected to analysis of variance, and treatments were compared using Duncan’s multiple range test at a 5% level of significance. Among the treatments, the combination of C. odorata and F. mucuso powders was the most effective, with higher growth and yield performance. The experiment showed that aqueous and powdered extracts of C. odorata and F. mucuso were effective in managing RKN in the field (see page 527)
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