Comparison of Frankliniella fusca and Frankliniella occidentalis (Thysanoptera: Thripidae) as Vectors for a Peanut Strain of Tomato Spotted Wilt Orthotospovirus

2018 ◽  
Vol 47 (3) ◽  
pp. 623-628 ◽  
Author(s):  
Steven P Arthurs ◽  
Kevin M Heinz ◽  
Forrest L Mitchell
Keyword(s):  
Frankliniella Occidentalis ◽  
Tomato Spotted Wilt ◽  
Frankliniella Fusca

Some characteristics of the thrip vector relationship of tomato spotted wilt virus in Canada

1976 ◽  
Vol 54 (5-6) ◽  
pp. 402-405 ◽  
Author(s):  
Y. C. Paliwal
Keyword(s):  
British Columbia ◽  
Tomato Spotted Wilt Virus ◽  
Frankliniella Occidentalis ◽  
First Generation ◽  
Thrips Tabaci ◽  
Eastern Canada ◽  
Tomato Spotted Wilt ◽  
Frankliniella Fusca ◽  
Wilt Virus ◽  
Relationship Of

Two isolates of tomato spotted wilt virus (TSWV) from British Columbia were transmitted by Frankliniella occidentalis, which is common in British Columbia but does not occur in eastern Canada. Frankliniella occidentalis from B.C. transmitted the virus to a smaller proportion of Emilia plants as compared with Frankliniella fusca, a known vector that occurs in eastern Canada, after a 48-h acquisition feeding as nymphs on infected Emilia leaves. Neither isolate of the virus was transmitted by Thrips tabaci, which is a vector of TSWV in some other countries. Males and females and macropterous and brachypterous forms of F. fusca did not differ significantly in their vector ability. TSWV was detected serologically in homogenates of 50 ‘exposed' F. fusca (first-generation adults reared on newly infected plants) but was difficult to detect in homogenates prepared from these thrips 2 weeks later. Thrip transmissibility of the virus declined considerably when propagated for long periods without passage through the thrip vector.

scholarly journals First Report on the Multiplication of Tomato Spotted Wilt Tospovirus in Tobacco Thrips, Frankliniella fusca

Plant Disease ◽  
1998 ◽  
Vol 82 (11) ◽  
pp. 1282-1282 ◽  
Author(s):  
H. R. Pappu ◽  
J. W. Todd ◽  
A. K. Culbreath ◽  
M. D. Bandla ◽  
J. L. Sherwood
Keyword(s):  
Virus Replication ◽  
Virus Detection ◽  
Western Flower Thrips ◽  
Enzyme Linked Immunosorbent Assay ◽  
Vector Species ◽  
Flower Thrips ◽  
Tomato Spotted Wilt ◽  
Frankliniella Fusca ◽  
Tobacco Thrips ◽  
Individual Adult

In Georgia, tomato spotted wilt tospovirus (TSWV) causes significant losses in peanut, tobacco, tomato, and pepper. Transmission of TSWV in Georgia primarily is by tobacco thrips (TT), Frankliniella fusca (Hinds), and western flower thrips, F. occidentalis (Pergande), with TT being the predominant vector species in peanut (2). TSWV must be acquired at the larval stage for the adult to transmit the virus. Detection of NSs (a non-structural TSWV protein present only following virus replication) in thrips by enzyme-linked immunosorbent assay (ELISA) is a reliable indicator that the virus had multiplied in the vector and thus the vector is competent to transmit TSWV. While this has been accomplished with F. occidentalis (1), information is lacking for F. fusca, the predominant vector in Georgia and other states in the Southeast. Thus, the nature of the TSWV-TT association was investigated and the proportion of transmitters in a field population determined in 1,436 individual adult TT collected from sticky cards positioned in selected peanut fields in south Georgia. Additionally, 650 larvae collected from volunteer peanut plants were reared to adults in the laboratory and the resulting 295 adult TT were individually evaluated by ELISA. Of those collected from the sticky cards, NSs was detected in 8% of the adult insects, indicating that the virus had multiplied in TT. NSs was not detected in control TT that had no access to the virus. Of the adult TT that emerged from larvae collected from volunteer peanuts, 6.1% were positive for NSs. Our study provides the first immunological evidence that TSWV multiplies in TT. References: (1) M. D. Bandla et al. Phytopathology 84:1427, 1994. (2) J. R. Chamberlin et al. J. Econ. Entomol. 86:40, 1993.

scholarly journals Survival and Reproductive Success of Tobacco Thrips on Three Tomato Spotted Wilt Virus Infected and Noninfected Peanut Cultivars

2000 ◽  
Vol 27 (2) ◽  
pp. 49-52 ◽  
Author(s):  
L. E. Garcia ◽  
G. G. Kennedy ◽  
R. L. Brandenburg
Keyword(s):  
North Carolina ◽  
Reproductive Success ◽  
Tomato Spotted Wilt Virus ◽  
Mixed Model ◽  
Mixed Model Analysis ◽  
Tomato Spotted Wilt ◽  
Frankliniella Fusca ◽  
Tobacco Thrips ◽  
Peanut Cultivars ◽  
Wilt Virus

Abstract A comparison of the survival and reproductive success of Frankliniella fusca (Hinds) (Thysanoptera: Thripidae) on tomato spotted wilt virus (Bunyviridae: Tospovirus) (TSWV) infected and uninfected peanut plants was conducted under greenhouse conditions in North Carolina. Three cultivars—NC 9, NC-V11, and NC 12C—adapted to North Carolina production practices were evaluated. A total of 180 individually caged plants, in three replicates, were infested with 20 female F. fusca each. Adult and larval thrips were collected after 30 d on the plants. Final counts were square root transformed and a mixed model analysis of variance conducted. Effects of cultivar and the virus-by-cultivar interaction were not statistically significant. TSWV-infected plants had significantly fewer adult and larval F. fusca than did uninfected plants for adults (P = 0.04) and for larvae (P = 0.01). This study reports on an alternative method of assessing TSWV resistance among peanut cultivars and the trend appears to support the conclusions of a previous field study, which found NC 9 more susceptible to TSWV than either NC-V11 or NC 12C.

scholarly journals Evaluation of Tactics for Management of Thrips-Vectored Tomato spotted wilt virus in Tomato

Plant Disease ◽  
2000 ◽  
Vol 84 (8) ◽  
pp. 847-852 ◽  
Author(s):  
D. G. Riley ◽  
H. R. Pappu
Keyword(s):  
Host Plant ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Tomato Spotted Wilt Virus ◽  
Frankliniella Occidentalis ◽  
Management Practices ◽  
Planting Date ◽  
Insecticide Treatment ◽  
Tomato Spotted Wilt ◽  
Wilt Virus

Two studies were conducted in Georgia during the spring of 1997 and 1998 to evaluate various management practices for reducing thrips and thrips-vectored Tomato spotted wilt virus (TSWV) in tomato. Populations of the two species of thrips responsible for transmitting TSWV in tomato fields, Frankliniella occidentalis and F. fusca, were determined using blossom and sticky trap samples. Management practices evaluated were host plant resistance, insecticide treatments, planting date, and light-reflective mulch. In both years, intensive insecticide treatment had the largest effect in reducing thrips and spotted wilt and increasing marketable yield, compared with host plant resistance and reflective mulch. The effect of planting date was consistent in that the later planting date resulted in higher incidence of TSWV, lower thrips numbers, and lower tomato yields, both in fruit quality and dollar value. Host plant resistance and reflective mulch significantly reduced thrips and TSWV. In both years, early planting on black plastic with an intensive insecticide treatment resulted in the highest yield.

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