Effectiveness of Neem Oil and Jatropha Oil in Controlling Spodoptera frugiperda (J.E Smith) on Maize in the Republic of Chad

Upon the evidence of its invasion in Chad 2018, Spodoptera frugiperda has become a serious threat to maize production, thereby prompting farmers massive use chemical pesticides reduce damage. However, given adverse negative effects on human health and environment, alternatives control are highly sought. In that respect, effectiveness Neem oil Jatropha oil, two bio widely acknowledged for their insecticidal properties, was evaluated field comparison with insecticide, Emamectin benzoate, Fisher Blocks design 4 treatments replicates. The mean larval density per 25 plants significantly lowest (P < 0.0001) benzoate-treated plants(1.13 ± 0.70), followed by (6.13 0.87) (7.13 0.80) while highest recorded untreated (12.31 0.87). Similarly, infestation rates were lower plots received insecticide or compared 0.0001). Foliar ear damage scores also treated than 0.0001); number ears attacked higher other treatments. Maize grain yields 0.001). Yield gains over 132.57%, 90.91% 72.73% respectively It appears, therefore, could contribute an effective sustainable management S. Chad, calling need further investigations area frame integrated pest this pest.