Dida Lontsi et al Greener Journal of Agricultural Sciences Vol. 9(1), pp. 14-22, 2019 ISSN: 2276-7770 Copyright ©2019, the copyright of this article is retained by the author(s) DOI Link: http://doi.org/10.15580/GJAS.2019.1.121418176 http://gjournals.org/GJAS Effect of aqueous extracts of Thevetia peruviana K. seeds on the control of late blight and pest insects of Solanum tuberosum L. in Cameroon Sylvere Landry DIDA LONTSI1, Zachee AMBANG1*, Champlain Lordon DJIETO2, Becaire Cedrik CHEDJOU WOUOM1, Alain HEU1, Angele NDOGHO PEGALEPO1 1 Laboratory of Phytopathology and Microbiology, Department of Plant Biology, Faculty of Science, University of Yaoundé I, Box. 812, Yaoundé-Cameroon 2 Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé I, PO BOX.812 Yaoundé, Cameroon. ARTICLE INFO ABSTRACT Article No.: 121418176 Type: Research DOI: 10.15580/GJAS.2019.1.121418176 In the perspective of effective control of diseases and pests of potatoes (Solanum tuberosum), a study carried out in the Highland West Region of Cameroon permitted to evaluate the effect of aqueous extracts of Thevetia peruviana seeds (AETPS) on the development of late blight caused by Phytophthora infestans and the population of insect pests. Two potato varieties (local (V1) and one improved variety “Cipira” (V2) were used. Five treatments: AETPS (T1), Bravo 720 fungicide (T3), Decis 5 EC insecticide (T4), mixture of the three substances (T2) and the control (T0) were tested using a double factorial system with completely randomized blocks. The evolution of the disease, insect population and tuber yield were evaluated and compared according to different treatments. The results show that a main disease identified in field and laboratory was mildew. 88 pests were collected and 9 pest families were identified. The Coccinelidae family was most represented (23, 86%). The incidence and severity of late blight in the field were respectively reduced to 22.77 and 76.05 % by the AETPS at 50 g/l, as the synthetic fungicide (T3). The number of insects decreased after treatment but remained relatively stable in control. The insecticidal power was maximum 1 h after application of the decis contrary to the AETPS of with maximum was between 24 and 48 h. The commercial yields obtained in the AETPS treatment were greater than 7.5 t/ha compared to 0 t/ha obtained in the controls (T0). Extracts of T. peruviana can therefore be used as anti-parasite substances in crop protection. Submitted: 14/12/2018 Accepted: 20/12/2018 Published: 31/01/2019 *Corresponding Author AMBANG Zachee E-mail: zachambang@ yahoo.fr Keywords: late blight, pests, Thevetia peruviana, aqueous extracts Return to Content View [Full Article – PDF] [Full Article – HTML] [Full Article – EPUB] Post-Publication Peer-review Rundown View/get involved, click [Peer-review] REFERENCES Alkher H., Islam M. R., Wijekoon C., Kalischuk M., Kawchuk L. M., Peters R. D., Al-Mughrabi K. I., Conn K. L., Dobinson K. F., Waterer D. and Daayf F., 2015. Characterization of Phytophthora infestans populations in Canada during 2012. Canadian Journal of Plant Pathology, 37(3): 305-314. Ambang Z., Dooh Ngoh J. P. et Djilé B., 2005. Effet des extraits des graines du laurier jaune (Thevetia peruviana (pers.) K. schum.) sur les charançons (Sitoptilus zeamais Motsch), ravageurs des stocks. Biosciences proceedings. 11: 57-63. Ambang Z., Ndongo B., Petga E., Dooh Ngoh J. P. et Asanga A., 2007. Effect of crude extract of Thevetia peruviana seeds on devlopment of leaf spot disease of groundnut (Arachis hypogaea L.) caused by cercospora sp. Afri. crop sci. Sociéty, 8 : 797-800. Ambang Z., Omokolo N. D., Ouzounov I. S. 2002. Evaluation de l’efficacité de la Bacillus thuringiensis contre les larves et imagos de Andrector ruficornis sur des plants de Solanum tuberosum au Cameroun. Tropicultura. 20 (3) : 113-117. Anonyme, 2008. Année internationale de la pomme de terre : Eclairage sur un trésor enfoui. Compte rendu de fin d’année. Organisation des Nations Unies pour l’Alimentation et l’Agriculture, Rome. 148 p. Anonyme, 2014. Clavibacter michiganensis subsp sepedonicus « le flétrissement bactérien de la pomme de terre ». Ministère de l’Agriculture de l’Agroalimentaire et de la Forêt. France. 11 p. Anonyme, 2013. FAO statistical yearbook world Food and Agriculture. Rome 307 p. Anonyme 2007. Le monde de la pomme de terre production consommation. Année internationale de la pomme de terre FAO, Rome, 3 P. Binyam T., Temam H. and Tekalign T., 2014. Efficacy of Reduced Dose of Fungicide Sprays in the Management of Late Blight (Phytophthora infestans) Disease on Selected Potato (Solanum tuberosum L.) Varieties Haramaya, Eastern Ethiopia. Journal of Biology, Agriculture and Healthcare, 4 (20): 2224-3208. Chougourou C.D., Dellouh P.I., Agbaka A., N’guessan K. R., Gbenou J. D., 2012. Toxicité et effets répulsifs de certaines huiles extraites des plantes locales Béninoises sur la mouche domestique Musca domestica L. (Diptera muscidae). J. Appl. Biosci. 55: 3953– 3961. Djocgoué P. F., 2008. Héritabilité des caractères de résistance a Phytophthora megakarya BRAS et GRIF. Chez Theobroma cacao L. Thèse, Université de Yaoundé I.145 p. Dooh Ngoh N. J. P., Ambang Z., Ndongo B., HEU A. et Tueguem K. W., 2014a. Effect of Thevetia peruviana (pers) K. Schum. On development of Phytophthora megakarya causal agent of black pod disease of cocoa. J. Appl. Biosci. 77: 6564-6574. Dooh Ngoh J. P., Ambang Z., Ewola A. T., Heu A., Kosma P., Yalen M. J. E. And Goghomu T. R., 2014b. Screening and the effect of extracts of Thevetia peruviana on the development of Colletotrichum gloeosporioides, causal agent of cassava anthracnose disease. J. of Agri. Res. And Dev. 4 (4): 054-065. Dooh Ngoh J. P., 2006. Effet des extraits bruts de Thevetia peruviana (pers.) K. Schum. Sur quelques souches de Phythoptora megakarya Bras. Et Grif. En condition in vitro. Mémoire de DEA, Université de Yaoundé I. 60 p. Ellisèche D., 2008. Production de pomme de terre. Quels défis pour aujourd’hui et pour demain. 6 p. Fontem D. A., Nana S. F., Njualem D. K. and Demo P., 2007. Effect of co-formulated fungicides on late blight management in seed and ware potatoes. Proceedings of the 13th ISTRC Symposium. pp. 345 – 354. Fontem D.A., Olanya O.M., Tsopmbeng G.R., Owona M.A.P., 2005. Pathogenicity and metalaxyl sensitivity of Phytophthora infestans isolates obtained from garden huckleberry, potato and tomato in Cameroon. Crop Protection, 24 (2005): 449–456. Fontem, D.A., 2003. Quantitative effects of early and late blights on tomato yields in Cameroon. Tropicultura 21, 36–41. François H. et Michel D. P., 2013. Impact des successions culturales (y compris intercultures) sur l’utilisation de produits phytosanitaires. Biotechnol. Agron. Soc. Environ. 17: 292-296. Gata-gonçalves L., Nogueira J. M. F., Matos O. and Bruno de sousa A., 2003. Photoactive extract from Thevetia peruviana with antifungal properties against Cladosporium cucumerinum. Journal of photochemistry and photobiology, 70 (1): 51-54. George K. et Preston S., 2004. Solutions biologiques de lutte contre le mildiou de la pomme de terre. National Sustainable Agriculture Information Service. 12 p. Girma F., Amare A., Nigussie D., 2013. Management of late blight (phytophthora infestans) of potato (solanum tuberosum through potato cultivars and fungicides in Hararghe Highlands, Ethiopia. Int. J. of Life Sci., 2 (3): 130-138. Habtamu K., Alemayehu C., Bekele K. and Pananjay K.T., 2012. Evaluation of different potato variety and fungicide combinations for the management of potato late blight (Phytophthora infestans) in Southern Ethiopia. Int. J. of Life Sci., 1(1) : 8-15. Kumar R., 2003. La lutte contre les insectes ravageurs et champignons pathogènes. In : La situation de l’agriculture africaine. Ed. Paris. pp. 314-344. Mollah J. U., Islam W., 2007. Toxicity of Thevetia peruviana (Pers) Schum extract to adults of Callosobruchus maculates F. (Coleoptrera: Bruchidae). J. Agric. Rural Dev., 5: 105-109. Muchiri F.N., Narla R.D., Olanya O.M., Nyankanga R.O., and Ariga E.S., 2009. Efficacy of fungicide mixtures for the management of Phytophthora infestans (US-1) on potato Phytoprotection, 90: 19-29. Munro, J. 1981. Potato virus X. W.J. Hooker. ed, Compendium of Patata Diseases. APS Press, St. Paul, Minnesota. pp. 72-74. Njualem, D.K., Demo, P., Mendoza, H.A., Koi, J.T. and S.F. Nana. 2001. Reaction of some potato genotypes to late blight in Cameroon. African Crop Science Journal 9: 209-213. Obasi N. B. and Igboechi A. C., 1991. Seed-oil distillates of Thevetia peruviana (Syn. T. nerifolia): analysis and antibacterial activity. Fitoterapia. 62 (2): 159-162. Oji O. and Okafor Q. E., 2000. Toxicological studies on steam bark, leaf and seed Kermel of yellow oleander (Thevetia peruviana). Phyto. Ther. Res. 14: 133-135. Omolara O. O., Ibiyemi A. S., Lamidi A.U., 2007. Effect of detoxification on nutrient content of Thevetia peruviana seed cake. Research Journal of Applied Sciences 2: 188-191. Santiago S. et Brice D., 2010. Nouvelles pratiques pour contrer la Jambe noire. Agroscope Changins Wadens Wil. 2 p. Saxena V. K. and Jain S. K., 1990. Thevetia peruviana Kermel oil: a potential bactericidal agent. Fitoterapia. 61 (4): 348-349. Schaafsma A.W., Tamburic-Ilinic L., Miller J.D. et Hooker D.C., 2001. Agronomic considerations for reducing deoxynivalenol in wheat grain. Canadian journal of plant pathology. 23 : 279-285. Stoll (1994). Protection naturelle des végétaux en zone tropicale. CTA. AGRECOL. pp. 95-99 Tchumakov A. E. et Zaharova I. I., 1990. Influence et statistique du développement des maladies. In : Agronome (eds). Dommages causés par les maladies aux cultures agricoles. Moscou. pp. 5-60. Cite this Article: Dida Lontsi, SL; Ambang, Z; Djieto, CL; Chedjou Wouom, BC; Heu, A; Ndogho Pegalepo, A (2019). Effect of aqueous extracts of Thevetia peruviana K. seeds on the control of late blight and pest insects of Solanum tuberosum L. in Cameroon. Greener Journal of Agricultural Sciences 9(1): 14-22, http://doi.org/10.15580/GJAS.2019.1.121418176
