Authors:
Njimah Mfonmbouot D.*, Ndonkou Nfozon J.
, Keuete Kamdoum E, Lacmata Tamekou S.
and Tsopmbeng
Noumbo GR, Cameroon
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Abstract:
The aim of the study was to evaluate the activity of Carica papaya, Cupressus lusitanica,
Chromolaena odorata and Mirabilis jalapa powders against Geotrichum candidum, Aspergillus
niger, Phoma sp, Alternaria alternata, Aspergillus fumigatus, Trichoderma harzianum and
Aspergillus flavus associated with tomato rots, while limiting the use of chemical products. To
achieve this, powders of these plants harvested in the town of Dschang were applied against the
various fungal species tested at doses of 1g, 2g and 3g respectively. The experimental set-up was
completely randomised, with three replicates. The antifungal tests showed that all the plant
powders relatively inhibited the growth of the different fungal species tested compared with the
negative control. However, the Carica papaya and Chromoleana odorata powders were the most
effective, completely inhibiting the growth of Geotrichum candidum, Aspergillus niger, Phoma
sp, Aspergillus fumigatus, Trichoderma harzianum and Aspergillus flavus from 2g upwards.
These results suggest a possible use of Carica papaya and Chromolaena odorata powders as
alternatives to chemicals in the control of fungi associated with tomato fruit rots.
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