A Tomato-Free Period Delays and Reduces Begomovirus Disease in Processing Tomato Fields in a Complex Agroecosystem in Central Brazil.

A mandatory tomato-free period (TFP) was implemented in the state of Goiás, Brazil, in 2007 to help manage diseases caused by whitefly-transmitted begomoviruses. The impact of the TFP was examined in five locations across three states in Central Brazil from 2013 to 2016. Surveys revealed significant differences in begomovirus disease incidence among locations, i.

Unique RNA 2 sequences of two Brazilian isolates of Pepper ringspot virus, a tobravirus.

Pepper ringspot virus (PepRSV) is a tobravirus reported only in Brazil. Here, the sequences of the complete RNA 2 segments and the 3' end of the RNA 1 genomic regions of two new isolates from tomato plants were analyzed. The main ORF encodes the CP gene as other tobraviruses and termed ORF 1 of RNA 2.