Tomato (Solanum lycopersicum L.) is one of the most widely grown commercial vegetable crops in India and many other countries worldwide. Tomato is known as both a productive and protective food. It plays a significant role in human nutrition because it is a rich source of lycopene, minerals (iron and phosphorus), organic acids, essential amino acids, dietary fibre, and vitamins such as ascorbic acid (vitamin C) and β-carotene (provitamin A), which are antioxidants and promote good health. Tomato production is seriously hampered by tomato leaf curl virus (ToLCV), with recorded yield losses of 90%. Geminiviruses constitute the largest and most economically significant group of plant viruses transmitted by Bemisia tabaci. The research trials were conducted during Kharif 2025-26 at the Department of Entomology, Rainfed Agricultural Research Farm Narayan Bagh, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (U.P.), to observe the incidence and management of tomato leaf curl virus disease (ToLCV). The present investigation showed that leaf curl virus is the pathogen involved in ToLCV disease of tomato, is vectored by whitefly, and is one of the constraints on tomato production. The prediction equation obtained through stepwise multiple regression, incorporating whitefly population, evaporation, and minimum temperature, could be used to predict the incidence of ToLCV disease. A foliar spray of Cyantraniliprole 10.20% OD @ 1.2 ml/l + Neem oil @ 2 ml/l could be recommended for effective management of whitefly and ToLCV disease of tomato based on the percentage reduction in disease, vector population, and highest yield.
Abhay Kumar Gangele, J. K. Babele, Saurabh Singh et al.· Journal of Experimental Agri...· 0 citations
Fusarium wilt, caused by Fusarium oxysporum f. sp. lentis, is an important constraint to lentil production. This study evaluated the cultural requirements of the pathogen and the efficacy of selected chemical, botanical and biological treatments under laboratory, net-house and field conditions at Bundelkhand University, Jhansi, Uttar Pradesh, India. The pathogen was isolated from wilt-affected lentil plants and maintained on potato dextrose agar. Pathogenicity was confirmed on the susceptible cultivar PDL-1 by fulfilling Koch’s postulates. Mycelial growth and sporulation were assessed on different media and across temperature and pH regimes. Treatment efficacy was evaluated in vitro and under field conditions using germination, disease incidence, disease control and yield as response variables. Oatmeal agar supported the greatest colony diameter (89.57 mm) and excellent sporulation. Maximum growth at the tested temperatures occurred at 30°C (91.00 mm), while pH 6.0 supported the greatest growth among the evaluated pH levels. Carbendazim 12% + mancozeb 13% produced the highest in vitro mycelial inhibition (79.116%). Under field conditions, this treatment also recorded the highest germination (97.98%), the lowest disease incidence (14.25%), the greatest disease control over the control (43.98%) and the highest yield (11.503 q/ha). Metalaxyl and the other tested treatments also reduced wilt incidence relative to the untreated control. These findings support an integrated approach combining effective chemical and biological options for managing lentil wilt under comparable agro-climatic conditions.
Prashant Bindua, J. K. Babele, Saurabh Singh et al.· Journal of Experimental Agri...· 0 citations
