Integrated Management of Sterility Mosaic Disease (SMD) of Red Gram and Virus - Vector Relationship in the Context of Weather Parameters
Ahila Devi, P *
Department of Plant Pathology, Tamil Nadu Rice Research Institute, Aduthurai -612 101, Thanjavur District, India.
Gnanachithra,M
Department of Microbiology, Tamil Nadu Agricultural University, Coimbatore-641-003, Tamil Nadu, India.
Mathiyalazhan, S
Department of Plant Pathology, Tamil Nadu Rice Research Institute, Aduthurai, Thanjavur District, India.
Subha,L
Agricultural Research Station, Tamil Nadu Agricultural University, Pattukottai-614 602, India.
Renuka,R
Department of Plant Pathology, Pandit Jawaharlal Nehru College of Agriculture And Research Institute, Karaikal - 609603, U.T. of Puducherry, India.
Shanmugapriya,S
Department of Nematology, Dr. M. S. Swaminathan Agricultural College and Research Institute, Eachangkottai-613 006, Thanjavur, Tamil Nadu, India.
*Author to whom correspondence should be addressed.
Abstract
The treatments were found to be more effective in comparison to untreated control. However, the Seed treatment imidacloprid 70 % WS @ 5 g/kg seed+ spraying of fenazaquin 5 EC @ 0.1% provided the maximum control (PDI 10.00) of the sterility mosaic disease and the vector population was decreased to 3 when compared to control (PDI 50.00). The SMD, incidence of redgram was positively correlated with maximum temperature and negatively correlated with Relative humidity and rainfall. The maximum temperature 24 % and Maximum RH 22 % is positively related to SMD incidence.
Keywords: Redgram, Sterility mosaic disease, virus, vector relationship