Plant-parasitic nematodes pose a significant threat to finger millet crops, potentially causing yield reduction of up to 70%. Extracts derived from finger millet varieties contain potent bioactive compounds that can mitigate nematode damage and promote plant growth. This study aimed at isolating and characterizing bioactive compounds from the finger millet varieties Ikhulule, Okhale-1, and U-15; evaluating the impact of Ikhulule and U-15 extracts on the mortality of the root lesion nematode Pratylenchus vandenbergae; assessing the growth promotion effects of Ikhulule and U-15 extracts on the finger millet variety Okhale-1; and determining the efficacy of these extracts in managing plant-parasitic nematodes under greenhouse conditions. Extracts were obtained from both leaves and roots and tested in vitro for nematode mortality and in vivo for growth promotion and nematode control. The results showed that finger millet extracts exhibited strong nematicidal properties in vitro, achieving a mortality rate of up to 98% against P. vandenbergae nematodes. Applying these extracts to finger millet shoots significantly reduced nematode populations in both soil and roots and decreased the reproductive factor to below one (1), indicating an effective nematode control. The study attributes the enhanced nematicidal effects of finger millet extracts to their bioactive compounds, particularly dodecanoic acid, phytol, 1,1,4a-trimethyl-6-decahydro naphthalene, 2,3-dihydro-benzofuran, 2-methoxy-4-vinylphenol and ethyl ester, and hexadecanoic acid. These findings suggest that finger millet-derived extracts offer a natural solution for nematode management and broader agronomic benefits, ultimately contributing to overall plant health and productivity.

The profit efficiency (PE) of maize farming and its determinants are estimated using the true random effect (TRE) approach. A survey of maize farmers was conducted in Uasin Gishu, one of Kenya's top maize-producing regions. Clearly, maize farmers can increase their profits based on the mean PE of 0.62. In terms of profitability, maize farming is elastically affected by the price of maize, but inelastically affected by the price of inputs. In households where the head of household is male, household sizes are larger, and farm sizes are larger, inefficiencies of profit are significantly reduced. Despite this, factors such as the distance between home and the maize farm, soil characteristics, maize diseases, along with natural disasters significantly increase profit inefficiency. According to the findings of the study, maize prices are more effective targets for developing supportive policies than input prices. To significantly increase PE, farmers would benefit from programs designed to improve their production and management skills to preserve soil health and minimize damage caused by disease and natural disasters. Furthermore, increase in PE would be achieved by improving farm size through land-use policies.