Identification and rearing of four thrips species vectors of Tospovirus in the Federal District, Brazil

Abstract

The disease caused by the viruses belonging to the genus Tospovirus is a serious problem in horticultural and ornamental crops in Brazil. In the field, this virus group is transmitted by the insect vector, thrips. Little is known about the thrips species occurring in Brazil, and which species are important for the dissemination of these diseases. For the study of epidemiology of this virus group, different thrips populations, which may have the capacity to be vectors of tospoviruses, were collected in the Federal District. Four species were identified: Frankliniella occidentalis Pergande, F. schultzei Trybom, Thrips palmi Karny and T. tabaci Lindeman. This is the first report of the occurrence of F. occidentalis and T. palmi in the Federal District. A methodology for the rearing of these four thrips is described in this report.

The competence of four thrips species to transmit and replicate four tospoviruses

“…Populations of F. occidentalis , F. schultzei and T. tabaci were reared in glass jars with bean pods, and T. palmi populations were reared on cucumber fruits (Nagata et al. , 1999b).…”

“…, 1998). The thrips species Frankliniella occidentalis , F. schultzei , Thrips tabaci and T. palmi , which are known to transmit tospoviruses, have been isolated in Brazil (Nagata et al. , 1999b).…”

Transmission of Chrysanthemum Stem Necrosis Virus, a Recently Discovered Tospovirus, by Two Thrips Species

“…Despite the great importance of CSNV in chrysanthemum and tomato crops in Brazil ( Nagata et al, 1998), the vector of this tospovirus species was unknown. In this study, Frankliniella occidentalis Pergande, Frankliniella schultzei Trybom and Thrips tabaci Lindeman, which are known to be vectors of some other tospovirus species ( Wijkamp et al, 1995) and often major thrips pests in vegetable and floral crops in the Federal District, Brazil ( Nagata et al, 1999b), were tested for their ability to transmit CSNV. The infection of adults of these species was confirmed by amplification enzyme‐linked immunosorbent assay (ELISA).…”

Application methods and dosages of thiamethoxam in thrips control on tomato plants

“…Nagata et al (2000) studied the transmission specificity and efficiency of Brazilian tospoviruses occurring on tomatoes caused by four thrips species. The results indicated that F. occidentalis and F. schultzei are the major Tospovirus vectors on tomato.…”

“…Tospovirus (type species: tomato spotted wilt virus, TSWV) result in large losses in several vegetable and floral crops (Nagata et al, 1999). More than ten species of thrips are vectors of tospoviruses and five of them have been detected.…”