TY - JOUR AU - Goudoum, Augustin AU - Ngamo Tinkeu, Léonard Simon AU - Ngassoum, Martin Benoît AU - Mbofung, Carl Moses PY - 2016/04/14 Y2 - 2024/03/29 TI - Insecticidal and Antifungal Properties of Essential Oil of Bidens Pilosa Linn. Var. Radita (Asteraceae) Towards Stored Bambara Groundnut Insect and Fungi Pests JF - Asian Journal of Agriculture and Food Sciences JA - AJAFS VL - 4 IS - 2 SE - Articles DO - UR - https://ajouronline.com/index.php/AJAFS/article/view/3537 SP - AB - <div><p>The present research studies in on hand the degradation of seeds due to pests: Callosobruchus maculatus and some fungi during 5 months and in other hand the efficiency of essential oil (EO) of fresh leaves of Bidens pilosa (Asteracea) to prevent these pest attacks on Bambara groundnut (BG) in the Far-North Region of Cameroon. The major constituents of the leaves EO were methyl α-pinene (14.71%), E-caryophyllene (13.47%), β-ocimene (12.83%) and cadinene (10.05%). Towards insect pest, the effective concentrations of B. pilosa that kill 50%, 80% and 99% population of C. maculatus were respectively 2.48, 3.46 and 4.07 mg/ml. At the LC<sub>50</sub>, EO protects 62.33 g of 100 g of BG after five month storage. The LC<sub>80</sub> and LC<sub>99</sub> of B. pilosa, reduced respectively 85 and 98% of damages of C. maculatus. Concerning fungi, 6 species beloging to 4 gender are isolated on untreated BG seeds after 5 months of storage: Aspergillus, Penicellium, Fusarium and Mucor. EO of fresh leaves of B. pilosa effectively reduced the fungal development. The sample treated with LC<sub>80</sub> and LC<sub>99</sub> have 4 species namely P. roquefortii (13.33 to 16.33%), A. Niger (20 to 24%), A. fumigatus (10 to 13.33%) and Mucor spp. (3.33 to 6%). This composition made clear the insecticidal and antifungal activities of the EO of B. pilosa and indicated its potential to protect BG from pest attacks..</p><p> </p></div> ER -