Volume 62, Issue 2, September 2022, Pages 51–60
Henri Grisseur Djoukeng1, Henry Chotangui Asafor2, Yannick Frank Tanku Tedjon3, Alphonse Azebaze4, and Julius Kewir Tangka5
1 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
2 Department of Agriculture, University of Dschang, Dschang, Cameroon
3 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
4 Cercle international pour la promotion de la création (CIPCRE), Bafoussam, Cameroon
5 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
Original language: English
Copyright © 2022 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
A survey was conducted by administering a questionnaire to identify common bean (Phaseolus vulgaris L.) conservation methods used by farmers in the Hauts-Plateaux division, west region of Cameroon. To reduce post-harvest losses of common bean (P. vulgaris) in the study area, a six-month study was carried out on red and black beans. Vegetable powder of tobacco leaves (Nicotiana tabacum) was produced and tested against the bean weevil (Acanthoscelides obtectus). Tobacco leaves were dried to 13.5% moisture content, crushed and sieved to obtain a powder at pH 5.63. This powder and two other synthetic insecticidal powders (Antouka and Protect DP) based on permethrin were incorporated at a dose of 1 g kg-1 in batches of beans. The coated seeds were placed in 125 mL polyethylene boxes containing 100 seeds each, then stored for 6 months in a room at a temperature between 15 and 27 °C. The experimental set-up applied for each variety was a complete randomized design comprising four treatments and four replicates (Control without any treatment, Tobacco, Protect DP, Antouka). Data on perforated seeds, weevil emergence and mortality were observed throughout the experiment. Results showed that 41% of farmers use synthetic insecticides, 36% do not use any substance, 14% wood ash, 9% fir leaves. This study showed that tobacco powder significantly reduced the puncture of beans by weevils, indicating the importance of alternatives means for pest management. It also emerged from this study that the black bean is more resistant to weevils than the red one.
Author Keywords: post-harvest, pest, insecticidal effect, food insecurity, legume seeds.
Henri Grisseur Djoukeng1, Henry Chotangui Asafor2, Yannick Frank Tanku Tedjon3, Alphonse Azebaze4, and Julius Kewir Tangka5
1 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
2 Department of Agriculture, University of Dschang, Dschang, Cameroon
3 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
4 Cercle international pour la promotion de la création (CIPCRE), Bafoussam, Cameroon
5 Department of Rural Engineering, University of Dschang, Dschang, Cameroon
Original language: English
Copyright © 2022 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
A survey was conducted by administering a questionnaire to identify common bean (Phaseolus vulgaris L.) conservation methods used by farmers in the Hauts-Plateaux division, west region of Cameroon. To reduce post-harvest losses of common bean (P. vulgaris) in the study area, a six-month study was carried out on red and black beans. Vegetable powder of tobacco leaves (Nicotiana tabacum) was produced and tested against the bean weevil (Acanthoscelides obtectus). Tobacco leaves were dried to 13.5% moisture content, crushed and sieved to obtain a powder at pH 5.63. This powder and two other synthetic insecticidal powders (Antouka and Protect DP) based on permethrin were incorporated at a dose of 1 g kg-1 in batches of beans. The coated seeds were placed in 125 mL polyethylene boxes containing 100 seeds each, then stored for 6 months in a room at a temperature between 15 and 27 °C. The experimental set-up applied for each variety was a complete randomized design comprising four treatments and four replicates (Control without any treatment, Tobacco, Protect DP, Antouka). Data on perforated seeds, weevil emergence and mortality were observed throughout the experiment. Results showed that 41% of farmers use synthetic insecticides, 36% do not use any substance, 14% wood ash, 9% fir leaves. This study showed that tobacco powder significantly reduced the puncture of beans by weevils, indicating the importance of alternatives means for pest management. It also emerged from this study that the black bean is more resistant to weevils than the red one.
Author Keywords: post-harvest, pest, insecticidal effect, food insecurity, legume seeds.
How to Cite this Article
Henri Grisseur Djoukeng, Henry Chotangui Asafor, Yannick Frank Tanku Tedjon, Alphonse Azebaze, and Julius Kewir Tangka, “Effect of tobacco leaves (Nicotiana tabacum) on the weevil (Acanthoscelides obtectus) of common bean (Phaseolus vulgaris),” International Journal of Innovation and Scientific Research, vol. 62, no. 2, pp. 51–60, September 2022.
