02822naa a2200361 a 450000100080000000500110000800800410001902400270006010000180008724501910010526000090029652017240030565000330202965000250206265000130208765000120210065000110211265000170212365000200214065000110216065300220217165300130219370000240220670000200223070000220225070000220227270000190229470000240231370000220233770000230235970000230238277300550240521445522022-07-08       2019    bl uuuu     u00u1 u    #d7 a10.1111/ppa.129202DOI1 aMACEDO, M. A.  aTemporal and spatial progress of the diseases caused by the crinivirus tomato chlorosis virus and the begomovirus tomato severe rugose virus in tomatoes in Brazil.h[electronic resource]  c2019  aEfficient management of whitefly-borne diseases remains a challenge due to the lack of a comprehensive understanding of their epidemiology, particularly of the diseases tomato golden mosaic and tomato yellowing. Here, by monitoring 16 plots in four commercial fields, the temporal and spatial distribution of these two diseases were studied in tomato fields in Brazil. In the experimental plots these diseases were caused by tomato severe rugose virus (ToSRV) and tomato chlorosis virus (ToCV), respectively. The incidence of each virus was similar in the plots within a field but varied greatly among fields. Plants with symptoms for both diseases were randomly distributed in three of four spatial analyses. The curves representing the progress of both diseases were similar and contained small fluctuations, indicating that the spread of both viruses was similar under field conditions. In transmission experiments of ToSRV and ToCV by Bemisia tabaci MEAM1 (former biotype B), these viruses had a similar transmission rate in single or mixed infections. It was then shown that primary and secondary spread of ToCV were not efficiently controlled by insecticide applications. Finally, in a typical monomolecular model of disease pro- gress, simulation of the primary dissemination of ToSRV and ToCV showed that infected plants were predominantly ran-domly distributed. It is concluded that, although the manner of vector transmission differs between ToSRV (persistent) and ToCV (semipersistent), the main dispersal mechanisms are most probably similar for these two diseases: primary spread is the predominant mechanism, and epidemics of these diseases have been caused by several influxes of viruliferous whiteflies.  aPlant diseases and disorders  aSolanum lycopersicum  aTomatoes  aDoença  aInseto  aMosca Branca  aPraga de Planta  aTomate  aManejo da doença  aWhitefly1 aINOUE-NAGATA, A. K.1 aSILVA, T, N. Z.1 aFREITAS, D. M. S.1 aREZENDE, J. A. M.1 aBARBOSA, J. C.1 aMICHEREFF FILHO, M.1 aNASCIMENTO, A. R.1 aLOURENÇÃO, A. L.1 aBERGAMIN FILHO, A.  tPlant Pathologygv. 68, n. 1, p. 72-84, jan. 2019.