CaCV is as an economically important virus infecting tomato and pepper in Australia and Thailand and recently peanut in China. To our knowledge, this is the first report of CaCV in tomato in India. Both PBNV and CaCV can produce similar symptoms in tomato warranting further studies on crop improvement strategies against these two tospoviruses in vegetable and legume crops in India. This report highlights the need for continuous monitoring on the prevalence of CaCV in India and other countries in the Asia-Pacific region. Accepted for publication 10 October 2007. Published 4 December 2007.

Two isolates of Capsicum chlorosis virus (CaCV, genus Tospovirus) from tomato (CaCV-To-Ind) and chilli (CaCV-Ch-Pan), collected from Haryana and Uttar Pradesh states of northern India respectively, were compared. A comparison of the amino acid sequences of their N genes revealed more than 96% identity, confirming that the virus isolates in India have a high degree of sequence conservation and are closely related to Australian isolates. Analysis of the host range of CaCV revealed no biological difference between the isolates, but they differed from CaCV-Australia. The nucleotide sequences of S, M and L RNA of CaCV-Ch-Pan were determined. The S RNA contains 3,105 nucleotides (nt), with NSs and N genes of 1,320 and 828 nt, respectively. The M RNA consists of 4,821 nt, with an NSm gene of 927 nt and a Gn/Gc gene of 3,366 nt. The intergenic regions of S and M RNA contain 824 and 425 nt, respectively. The L RNA consists of 8,912 nt, with an RNA-dependent RNA polymerase gene of 8,634 nt.

To our knowledge, this is the first report of Groundnut bud necrosis virus (GBNV, genus Tospovirus) infection in okra and also its mixed infection with Okra yellow vein mosaic virus (OYVMV, genus Geminivirus) in India. It appears that the GBNV is expanding its host range from Fabaceae and Solanaceae families to crops belonging to Malvaceae family. The potential impact of mixed infection of GBNV and OYVMV on economical yield in okra warrants continuous monitoring of the diseases in field. Accepted for publication 3 October 2012. Published 23 October 2012.