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Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502.
The present investigation was conducted to study the incidence of sesame phyllody disease in major sesame growing areas in Southern Zone of Andhra Pradesh (Y.S.R, Tirupati and Nellore districts) which revealed that the sesame phyllody incidence ranged from 19.18 to 25.47 per cent in Nellore and Y.S.R. districts. In Y.S.R district, the survey was conducted in 3 mandals. Among them, the highest average per cent disease incidence was observed in Kamalapuram mandal (27.35 per cent) and the lowest average per cent disease incidence (19.9 per cent) was recorded in Chapadu mandal. In Nellore district the survey was conducted in 3 mandals. Among them, the highest disease average per cent disease was observed in Kaligiri mandal (20.1%) and the lowest percentage in kaligiri mandal (16.25%) respectively. The infected plants shown different symptoms such as phyllody, floral virescence etc. In order to know the population dynamics of leafhopper transmitting sesame phyllody, a study was conducted at V.N. Palli mandal in Y.S.R districts during rabi 2023. Studies on the relative abundance of different leaf hoppers found in sesame ecosystem revealed that Orosius albicinctus Distant was the most abundant species found in sesame field with 6.94 per cent..
KEYWORDS: Incidence, leafhopper, phyllody.