Abstract
The survey was conducted during rabi season (2021) to determine the incidence of mosaic disease of capsicum in major capsicum growing districts namely, Chikkaballapura, Kolar, Bengaluru rural and Ramanagar. The per cent incidence of mosaic disease based on symptoms in field was recorded, highest in Ramanagar (54.85%) and the least incidence of mosaic disease was observed in Chikkaballapura (26.85%). Transmission and host range studies under glasshouse conditions revealed that ChiVMV is transmitted mechanically. Among 16 host plants tested, 7 plant species (Nicotiana tabacum cv. Samsun, N. glutinosa, N. occidentalis, Datura metel, Physalis floridana, S. nigrum, Capsicum annum) were infected with the Chilli veinal mottle virus disease and the symptom could be seen in 20-25 days. The per cent transmission of ChiVMV by aphid Aphis gossypii was studied. The results showed that ChiVMV can be transmitted by A. gossypii. However, five aphids per plant showed highest per cent transmission (100%). The effect of different dates of inoculation on different plant growth parameters was also studied, the highest per cent disease transmission was observed in T1: Inoculation 15 days after sowing (100.00%).
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