Tobacco thrips and peanut response to imidacloprid and fluopyram

cftm ◽  
2021 ◽  
Author(s):  
Rick Brandenburg ◽  
Brian Royals ◽  
Sally Taylor ◽  
Sean Malone ◽  
David Jordan ◽  
...  
Keyword(s):  
Tobacco Thrips

Evaluation of Insecticides for Control of the Tobacco Thrips on Peanuts1

1961 ◽  
Vol 54 (1) ◽  
pp. 200-201
Author(s):  
James A. Harding
Keyword(s):  
Tobacco Thrips

scholarly journals Selected Seed and In-Furrow Treatments for Control of Tobacco Thrips in Peanut, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 248-248
Author(s):  
D. A. Herbert, Jr.
Keyword(s):  
Tobacco Thrips

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.

Effect of thiamethoxam seed treatment on injury from tobacco thrips, incidence of spotted wilt disease, and peanut yield

cftm ◽  
2021 ◽  
Author(s):  
Scott Monfort ◽  
Albert Culbreath ◽  
Mark Abney ◽  
Rick Brandenburg ◽  
Brian Royals ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Wilt Disease ◽  
Tobacco Thrips

Effect of In-Furrow Application of Fluopyram on Leaf Spot Diseases of Peanut

Plant Disease ◽  
2021 ◽  
Author(s):  
Albert Culbreath ◽  
Robert Kemerait ◽  
Timothy Brenneman ◽  
Emily Cantonwine ◽  
Keith Rucker
Keyword(s):  
Arachis Hypogaea ◽  
Leaf Spot ◽  
Fungal Pathogens ◽  
Field Experiments ◽  
Resistance Management ◽  
Feeding Damage ◽  
Early Season ◽  
Late Leaf Spot ◽  
Frankliniella Fusca ◽  
Tobacco Thrips

In peanut (Arachis hypogaea) production, in-furrow applications of the pre-mix combination of the SDHI fungicide/nematicide, fluopyram, and the insecticide, imidacloprid are used primarily for management of nematode pests and for preventing feeding damage on foliage caused by tobacco thrips (Frankliniella fusca). Fluopyram is also active against many fungal pathogens. However, the effect of in-furrow applications of fluopyram on early leaf spot (Passalora arachidicola) or late leaf spot (Nothopassalora personata) has not been characterized. The purpose of this study was to determine the effects of in-furrow applications of fluopyram + imidacloprid or fluopyram alone on leaf spot epidemics. Field experiments were conducted in Tifton, GA in 2015, 2016, and 2018-2020. In all experiments in-furrow applications of fluopyram + imidacloprid provided extended suppression of early leaf spot and late leaf spot epidemics compared to the nontreated control. In 2020, there was no difference between the effects of fluopyram + imidacloprid and fluopyram alone on leaf spot epidemics. Results indicated that fluopyram could complement early season leaf spot management programs. Use of in-furrow applications of fluopyram should be considered as an SDHI fungicide application for resistance management purposes.

Winter Occurance and Spring Migration of Frankliniella fusca (Hinds) (Thysanoptera: Tripidae) in North Carolina Peanut (Arachis hypogaea L.) Fields

2003 ◽  
Vol 30 (1) ◽  
pp. 38-42
Author(s):  
L. E. Garcia ◽  
R. L. Brandenburg ◽  
G. G. Kennedy ◽  
J. E. Bailey ◽  
J. R. Bradley
Keyword(s):  
North Carolina ◽  
Nonstructural Protein ◽  
Soil Surface ◽  
Sampling Techniques ◽  
Sticky Traps ◽  
Prevailing Wind Direction ◽  
Frankliniella Fusca ◽  
Tobacco Thrips ◽  
Maximum Temperatures ◽  
Wilt Virus

Abstract Overwintering of Frankliniella fusca (Hinds), tobacco thrips, in North Carolina and their subsequent spring movement into peanut fields were evaluated using two winter sampling techniques and three spring sampling techniques at the Peanut Belt Res. Sta., Lewiston, NC. In the spring of 1992 and 1993, for 14 d following peanut planting, the aerial movement of tobacco thrips was monitored using cylindrical sticky traps, trap plants, and exclusion cages. Frankliniellafusca were trapped significantly more often at 0.2 m and 0.9 m than at 1.8 m and during the afternoons. Thrips catch was significantly influenced by prevailing wind direction. No thrips were caught on sticky traps on days when maximum temperatures did not exceed 18.7 C. Frankliniella fusca began to colonize emerging peanut plants as they cracked the soil surface on days when there were temperatures above 18.7 C and times when there was no precipitation. Aerial F. fusca movement was monitored with sticky traps for three consecutive winters during 1993–96. Tobacco thrips were collected on sticky traps throughout the winter; however, counts were lower in months and years with lower temperatures. Tobacco thrips, caged throughout the winter with peanut plants infected with tomato spotted wilt virus (TSWV), were analyzed for the presence of a nonstructural protein (NSs) encoded for by the small RNA of TSWV and infectivity by ELISA. A total of eight tobacco thrips were collected, of which one tested positive.

scholarly journals Comparison of Foliar, Seed, and Soil Treatments for Reducing Tobacco Thrips Injury on Watermelon, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 162-163
Author(s):  
C. L. McKenzie ◽  
S. Rowland ◽  
B. Cartwright
Keyword(s):  
Tobacco Thrips

scholarly journals Influence of Planting Date, Fungicide Seed Treatment, and Phorate on Peanut in North Carolina

2019 ◽  
Vol 46 (1) ◽  
pp. 14-21
Author(s):  
D.J. Mahoney ◽  
D.L. Jordan ◽  
R.L. Brandenburg ◽  
B.B. Shew ◽  
B.R. Royals ◽  
...  
Keyword(s):  
North Carolina ◽  
Seed Treatment ◽  
Production Systems ◽  
Negative Impact ◽  
Planting Date ◽  
Soil Borne Pathogens ◽  
Arachis Hypogaea L ◽  
Treated Seed ◽  
Tobacco Thrips ◽  
Negative Impacts

ABSTRACT Establishing an adequate stand of peanut (Arachis hypogaea L.) and minimizing the negative impact of tobacco thrips [Frankliniella fusca (Hinds)] is important for maximizing yield in both organic and conventional production systems. The incidence, severity, and impact of soil borne pathogens and thrips populations on peanut may be influenced by planting date, fungicide seed treatment, and/or systemic insecticide application. However, the interaction of these management techniques has not been investigated in North Carolina with Virginia market type cultivars to date. As such, research was conducted over four years in North Carolina to determine peanut stand, injury caused by tobacco thrips feeding, and pod yield as influenced by planting date (early, mid-, and late-May), fungicide seed treatment, and phorate applied in the seed furrow at planting. Peanut stand increased when planting fungicide-treated seed compared to non-treated seed, although the magnitude of this effect lessened with later May plantings. Regardless of phorate treatment, less thrips injury was noted when peanut was planted in mid- or late-May compared with early May in three of four years. Yet the addition of phorate in-furrow further reduced thrips injury at every planting date. Peanut yield increased 75% and 50% of the time when seed was treated with fungicide and phorate was applied in the seed furrow at planting, respectively. Yield was generally greater when peanut was planted in mid-May and late-May compared to planting in early May irrespective of fungicide seed treatment or phorate treatment. Peanut stand was negatively and positively correlated with observed thrips injury and peanut yield, respectively. Additionally, peanut yield was negatively correlated to thrips injury. These data suggest that conventional producers should utilize treated seed and phorate in-furrow for thrips management regardless of planting date and that organic producers should plant in late May to minimize negative impacts of thrips and soil borne pathogens.

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