1Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore
2Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore
3Department of Fruit Crops, HC&RI, TNAU, Coimbatore
4Division of Plant pathology, ICAR-Indian Institute of Horticultural Research, Bengaluru-560089
*E-mail: ragumala2000@gmail.com
Online published on 15 May, 2017.
Studies were conducted to understand the influence of weather factors on aphid population and the incidence of Papaya Ring Spot Virus (PRSV). It was observed that the crop planted during August to December recorded minimum PRSV incidence (10 to 20%) compared to February and March planted crop that succumbed to PRSV incidence at 60 days after planting. Asignificant positive correlation existed between aphid population and maximumtemperature during February to April months. Avoiding planting of papaya during February to April months could reduce PRSV.
Aphids, papaya ring spot virus, weather factors
