scholarly journals Management of the Wheat Curl Mite and Wheat Streak Mosaic Virus With Insecticides on Spring and Winter Wheat

2021 ◽  
Vol 12 ◽  
Author(s):  
Carmen Y. Murphy ◽  
Mary E. Burrows
Keyword(s):  
Mosaic Virus ◽  
Untreated Control ◽  
Seed Treatment ◽  
Experimental Treatment ◽  
Plant Viruses ◽  
Wheat Streak Mosaic Virus ◽  
Mite Infestation ◽  
Northern Great Plains ◽  
Growth Inhibitors ◽  
Wheat Curl Mite

The wheat curl mite (WCM, Aceria tosichella, Keifer) is an eriophyid mite species complex that causes damage to cereal crops in the Northern Great Plains by feeding damage and through the transmission of plant viruses, such as wheat streak mosaic virus. Insecticide treatments were evaluated in the greenhouse and field for efficacy at managing the WCM complex on wheat. Treatments tested were carbamates, organophosphates, pyrethroids, a neonicotinoid seed treatment, mite growth inhibitors, and Organic Materials Review Institute–approved biocontrols, soaps, and oils. Treatment with carbamates, organophosphates, and pyrethroids decreased WCM in greenhouse trials compared with untreated controls 14 days after infestation. The seed treatment, mite growth inhibitors, and organic pesticides did not reduce WCM populations effectively and consistently. The timing of application was tested using a sulfur solution as the experimental treatment. Treating plants with sulfur seven days after mite infestation reduced mites compared with the untreated control. In contrast, prophylactically applied sulfur and sulfur applied 14 days after mite infestation were not effective. When tested under field conditions with plots infested with viruliferous mites, there was no yield difference detected between untreated control plots and plots sprayed with insecticides. Select carbamates, organophosphates, and pyrethroids have a potential for use in greenhouse mite management when appropriate.

scholarly journals First Report of Wheat streak mosaic virus on Wheat in New Zealand

Plant Disease ◽  
2009 ◽  
Vol 93 (4) ◽  
pp. 430-430 ◽  
Author(s):  
B. S. M. Lebas ◽  
F. M. Ochoa-Corona ◽  
B. J. R. Alexander ◽  
R. A. Lister ◽  
J. D. F. Fletcher ◽  
...  
Keyword(s):  
New Zealand ◽  
Mosaic Virus ◽  
Total Yield ◽  
The United States ◽  
Plant Viruses ◽  
Wheat Streak Mosaic Virus ◽  
Rt Pcr ◽  
Wheat Curl Mite ◽  
Experimental Trials ◽  
Das Elisa

In August of 2005, seeds of wheat (Triticum aestivum) breeding line 6065.3 tested positive for Wheat streak mosaic virus (WSMV; genus Tritimovirus) by a WSMV-specific reverse transcription (RT)-PCR assay (2). The sequence of the 200-bp amplicon (GenBank Accession No. FJ434246) was 99% identical with WSMV isolates from Turkey and the United States (GenBank Accession Nos. AF454455 and AF057533) and 96 to 97% identical to isolates from Australia (GenBank Accession Nos. DQ888801 to DQ888805 and DQ462279), which belong to the subclade D (1). As a result, an extensive survey of three cereal experimental trials and 105 commercial wheat crops grown on the South Island of New Zealand was conducted during the 2005–2006 summer to determine the distribution of WSMV. Wherever possible, only symptomatic plants were collected. Symptoms on wheat leaf samples ranged from very mild mosaic to symptomless. In total, 591 leaf samples suspected to be symptomatic were tested for WSMV by a double-antibody sandwich (DAS)-ELISA (DSMZ, Braunschweig, Germany). Of the 591 symptomatic samples, 81 tested positive. ELISA results were confirmed by RT-PCR with novel forward (WSMV-F1; 5′-TTGAGGATTTGGAGGAAGGT-3′) and reverse (WSMV-R1; 5′-GGATGTTGCCGAGTTGATTT-3′) primers designed to amplify a 391-nt fragment encoding a region of the P3 and CI proteins. Total RNA was extracted from the 81 ELISA-positive leaf samples using the Plant RNeasy Kit (Qiagen Inc., Chatsworth, CA). The expected size fragment was amplified from each of the 81 ELISA-positive samples. The positive samples represent 30 of 56 wheat cultivars (54%) collected from 28 of 108 sites (26%) sampled in the growing regions from mid-Canterbury to North Otago. These results suggest that WSMV is widespread in New Zealand both geographically and within cultivars. WSMV is transmitted by the wheat curl mite (Aceria tosichella) (3), which had not been detected in New Zealand despite repeated and targeted surveys. WSMV is of great economic importance in some countries, where the disease has been reported to cause total yield loss (3). Although WSMV is transmitted by seeds at low rates (0.1 to 0.2%) (4), it is the most likely explanation of the spread of the disease in New Zealand. References: (1) G. I. Dwyer et al. Plant Dis. 91:164, 2007. (2) R. French and N. L. Robertson. J. Virol. Methods 49:93, 1994. (3) R. French and D. C. Stenger. Descriptions of Plant Viruses. Online publication. No. 393, 2002. (4) R. A. C. Jones et al. Plant Dis. 89:1048, 2005.

Wheat Curl Mite Resistance: Interactions of Mite Feeding With Wheat Streak Mosaic Virus Infection

2011 ◽  
Vol 104 (4) ◽  
pp. 1406-1414 ◽  
Author(s):  
M. Murugan ◽  
P. Sotelo Cardona ◽  
P. Duraimurugan ◽  
A. E. Whitfield ◽  
D. Schneweis ◽  
...  
Keyword(s):  
Virus Infection ◽  
Mosaic Virus ◽  
Wheat Streak Mosaic Virus ◽  
Wheat Curl Mite ◽  
Mite Feeding ◽  
Mosaic Virus Infection

Controlling Wheat Curl Mite and Wheat Streak Mosaic Virus with Systemic Insecticide1234

1979 ◽  
Vol 72 (6) ◽  
pp. 854-855 ◽  
Author(s):  
T. L. Harvey ◽  
T. J. Martin ◽  
C. A. Thompson
Keyword(s):  
Mosaic Virus ◽  
Wheat Streak Mosaic Virus ◽  
Wheat Curl Mite

scholarly journals Impacts of Crop Variety and Time of Inoculation on the Susceptibility and Tolerance of Winter Wheat to Wheat streak mosaic virus

Plant Disease ◽  
2014 ◽  
Vol 98 (8) ◽  
pp. 1060-1065 ◽  
Author(s):  
Z. Miller ◽  
F. Menalled ◽  
D. Ito ◽  
M. Moffet ◽  
M. Burrows
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Great Plains ◽  
Disease Risk ◽  
Wheat Yield ◽  
Wheat Streak Mosaic Virus ◽  
Northern Great Plains ◽  
Yield Losses ◽  
South Central ◽  
The Impact

Plant genotype, age, size, and environmental factors can modify susceptibility and tolerance to disease. Understanding the individual and combined impacts of these factors is needed to define improved disease management strategies. In the case of Wheat streak mosaic virus (WSMV) in winter wheat, yield losses and plant susceptibility have been found to be greatest when the crop is exposed to the virus in the fall in the central and southern Great Plains. However, the seasonal dynamics of disease risk may be different in the northern Great Plains, a region characterized by a relatively cooler fall conditions, because temperature is known to modify plant–virus interactions. In a 2-year field study conducted in south-central Montana, we compared the impact of fall and spring WSMV inoculations on the susceptibility, tolerance, yield, and grain quality of 10 winter wheat varieties. Contrary to previous studies, resistance and yields were lower in the spring than in the fall inoculation. In all, 5 to 7% of fall-inoculated wheat plants were infected with WSMV and yields were often similar to uninoculated controls. Spring inoculation resulted in 45 to 57% infection and yields that were 15 to 32% lower than controls. Although all varieties were similarly susceptible to WSMV, variations in tolerance (i.e., yield losses following exposure to the virus) were observed. These results support observations that disease risk and impacts differ across the Great Plains. Possible mechanisms include variation in climate and in the genetic composition of winter wheat and WSMV across the region.

Chromosomal location in common wheat of a gene (Cmcl) from Aegilops squarrosa that conditions resistance to colonization by the wheat curl mite

Genome ◽  
1989 ◽  
Vol 32 (6) ◽  
pp. 1033-1036 ◽  
Author(s):  
E. D. P. Whelan ◽  
J. B. Thomas
Keyword(s):  
Mosaic Virus ◽  
Common Wheat ◽  
Chromosomal Location ◽  
Dominant Gene ◽  
Triticum Aestivum L ◽  
Wheat Streak Mosaic Virus ◽  
D Genome ◽  
Wheat Curl Mite ◽  
Aegilops Squarrosa ◽  
Homozygous Resistant

Wheat streak mosaic is a destructive disease of wheat caused by wheat streak mosaic virus. Wheat streak mosaic virus is vectored by the wheat curl mite (Eriophyes tulipae Keifer). A single dominant gene conditioning resistance to colonization by the mite vector was transferred from Aegilops squarrosa L. to a synthetic amphiploid (AC PGR 16635) and then to common wheat (Triticum aestivum L. em. Thell.) through backcrossing. Because of its origin, the transferred gene was probably located in the D genome. Monosomics 1D through 7D were crossed with a homozygous resistant line with the pedigree Norstar*4/AC PGR 16635. Both 41- and 42-chromosome F1 plants were identified and selfed to obtain F2 seed. The observed proportion of resistant and susceptible plants in 6 of the 7 F2 families from monosomics, and in all 7 of the F2s from disomics, did not deviate significantly from a 3:1 ratio. However, the proportion of resistant plants from the F2 of monosomic 6D was significantly (p < 0.01) in excess of this ratio and susceptible plants from this family were nullisomic for all or part of 6D. In crosses with standard ditelosomic stocks, telocentrics from a ditelosomic derivative of susceptible individual of this F2 paired with 6D(L) but failed to pair with 6D(S). The F2 of heterozygous resistant plants that were monotelodisomic for the long arm of 6D(L) segregated approximately 19 resistant to 1 susceptible, while those from monotelodisomics for the short arm segregated normally (3 resistant to 1 susceptible, p = 0.27). These data show that the gene Cmcl for mite resistance is located on the short arm of chromosome 6D. Key words: Aegilops squarrosa, wheat streak mosaic virus.

Molecular cytogenetic discrimination and reaction to wheat streak mosaic virus and the wheat curl mite in Zhong series of wheat – Thinopyrum intermedium partial amphiploids

Genome ◽  
2003 ◽  
Vol 46 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Qin Chen ◽  
R L Conner ◽  
H J Li ◽  
S C Sun ◽  
F Ahmad ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Barley Yellow Dwarf Virus ◽  
Wheat Breeding ◽  
Wheat Streak Mosaic Virus ◽  
The Other ◽  
Thinopyrum Intermedium ◽  
Wheat Curl Mite ◽  
Partial Amphiploid ◽  
Yellow Dwarf Virus ◽  
Partial Amphiploids

Thinopyrum intermedium (2n = 6x = 42, JJJsJsSS) is potentially a useful source of resistance to wheat streak mosaic virus (WSMV) and its vector, the wheat curl mite (WCM). Five partial amphiploids, namely Zhong 1, Zhong 2, Zhong 3, Zhong 4, and Zhong 5, derived from Triticum aestivum × Thinopyrum intermedium crosses produced in China, were screened for WSMV and WCM resistance. Zhong 1 and Zhong 2 had high levels of resistance to WSMV and WCM. The other three partial amphiploids, Zhong 3, 4, and 5, were resistant to WSMV, but were susceptible to WCM. Genomic in situ hybridization (GISH) using a genomic DNA probe from Pseudoroegneria strigosa (SS, 2n = 14) demonstrated that two partial amphiploids, Zhong 1 and Zhong 2, have almost the identical 10 Th. intermedium chromosomes, including four Js, four J, and two S genome chromosomes. Both of them carry two pairs of J and a pair of Js genome chromosomes and two different translocations that were not observed in the other three Zhong lines. The partial amphiploids Zhong 3, 4, and 5 have another type of basic genomic composition, which is similar to a reconstituted alien genome consisting of four S and four Js genome chromosomes of Th. intermedium (Zhong 5 has two Js chromosomes plus two Js–W translocations) with six translocated chromosomes between S and Js or J genomes. All three lines carry a specific S–S–Js translocated chromosome, which might confer resistance to barley yellow dwarf virus (BYDV-PAV). The present study identified a specific Js2 chromosome present in all five of the Zhong lines, confirming that a Js chromosome carries WSMV resistance. Resistance to WCM may be linked with J or Js chromosomes. The discovery of high levels of resistance to both WSMV and WCM in Zhong 1 and Zhong 2 offers a useful source of resistance to both the virus and its vector for wheat breeding programs.Key words: GISH, genomic composition, J, Js and S genomes, Thinopyrum intermedium, partial amphiploid, WSMV, WCM resistance.

scholarly journals PEMANFAATAN KITOSAN UNTUK PENGENDALIAN BEAN COMMON MOSAIC VIRUS (BCMV) PADA KACANG PANJANG

2013 ◽  
Vol 13 (2) ◽  
pp. 110-116
Author(s):  
Tri Asmira Damayanti ◽  
Haryanto Haryanto ◽  
Suryo Wiyono
Keyword(s):  
Enzyme Activity ◽  
Mosaic Virus ◽  
Incubation Period ◽  
Untreated Control ◽  
Seed Treatment ◽  
Disease Incidence ◽  
Bean Common Mosaic Virus ◽  
Virus Inhibition ◽  
Peroxidase Enzyme ◽  
Relative Inhibition

Utilization of chitosan to control Bean common mosaic virus (BCMV) on yard long bean. Bean common mosaic virus (BCMV) is one of important viruses infecting yard long bean in Indonesia. One of efforts to control its infection is by utilizing chitosan. Thus, the aim of the conducted research was to test the effectiveness of chitosan in controlling BCMV on yard long bean. Concentration of chitosan tested were 0.1% and 1.0% and it was applied as seed treatment (PB), leaf spraying before (SB) and after (ST) mechanical inoculation of BCMV. Incubation period, disease incidence and severity, peroxidase enzyme activity, and BCMV titer were measured as observation parameters. Incubation period of all treated plants were longer as compared with untreated control plants. Symptoms of treated plants at concentration 0.1% (SB and ST) showed mild to severe symptom and leaf malformation, while at concentration 1.0% showing milder symptoms and some of tested plants remain symptomless. Treated plants showed lower peroxidase enzyme activity and significantly lower BCMV titer as compared with that of untreated control plants. The lowest to highest percentage of virus inhibition exhibited by ST0.1, SB0.1, PB0.1, PB1, SB1 and ST1 treatments with virus relative inhibition level ranged 75.94%-86.07% and severity inhibition level ranged  39.55%-64.63%. 

scholarly journals Winter Wheat Cultivars with Temperature-Sensitive Resistance to Wheat streak mosaic virus Do Not Recover from Early-Season Infections

Plant Disease ◽  
2014 ◽  
Vol 98 (4) ◽  
pp. 525-531 ◽  
Author(s):  
Jacob A. Price ◽  
Angela R. Simmons ◽  
Arash Rashed ◽  
Fekede Workneh ◽  
Charles M. Rush
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Great Plains ◽  
Quantitative Resistance ◽  
Genetic Resistance ◽  
Virus Titer ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Infection Period ◽  
Wheat Curl Mite

Wheat streak mosaic virus (WSMV), Triticum mosaic virus, and Wheat mosaic virus, all vectored by the wheat curl mite Aceria tosichella Keifer, frequently cause devastating losses to winter wheat production throughout the central and western Great Plains. Resistant ‘Mace’ and ‘RonL are commercially available and contain the wsm1 and wsm2 genes, respectively, for resistance to WSMV. However, the resistance in these cultivars is temperature sensitive, ineffective above 27°C, and does not protect against the other common wheat viruses. The majority of winter wheat in the Southern Great Plains is planted in early fall as a dual-purpose crop for both grazing and grain production. Early planting exposes wheat plants to warmer temperatures above the threshold for effective resistance. Studies were conducted to determine whether the resistance found in these cultivars would give infected plants the ability to recover as temperatures cooled to a range conducive to effective genetic resistance. RonL, Mace, ‘TAM 111’, ‘TAM 112’, and ‘Karl 92’ wheat were infested with WSMV viruliferous mites at temperatures above the resistance threshold. After the initial 4-week infection period, plants were subjected to progressively cooler temperatures during the winter months, well below the resistance threshold. Throughout the study, plant samples were taken to quantify virus titer and mite populations. Resistant RonL and Mace, which became severely infected during the initial infection period, were not able to recover even when temperatures dropped below the resistance threshold. However, TAM 112 showed resistance to WSMV but, more importantly, it also showed resistance to the wheat curl mite, because the mite population in this cultivar was significantly lower than on all other cultivars. The results of this study are significant in that they represent the first evidence of quantitative resistance to both WSMV and the wheat curl mite in a single wheat cultivar. Resistance to the wheat curl mite has potential to reduce losses to all mite-vectored virus diseases of wheat and not just WSMV.

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