The potential pigmentation‐related genes in spider mites revealed by comparative transcriptomes of the red form of Tetranychus urticae

2021 ◽  
Author(s):  
S.‐M. Huo ◽  
Y.‐Y. Zhang ◽  
Z.‐R. Song ◽  
X.‐H. Xiong ◽  
X.‐Y. Hong
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mites ◽  
Red Form

UV-induced citrus resistance to spider mites (Tetranychus urticae)

2021 ◽  
Vol 144 ◽  
pp. 105580
Author(s):  
Sharon Warburg ◽  
Mosaab Yahyaa ◽  
Tamar Lahav ◽  
Shlomit Medina ◽  
Shiri Freilich ◽  
...  
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mites

scholarly journals Maize inbred line B96 is the source of large-effect loci for resistance to generalist but not specialist spider mites

2021 ◽  
Author(s):  
Huyen Bui ◽  
Robert Greenhalgh ◽  
Gunbharpur S. Gill ◽  
Meiyuan Ji ◽  
Andre H. Kurlovs ◽  
...  
Keyword(s):  
Zea Mays ◽  
Tetranychus Urticae ◽  
European Corn Borer ◽  
Spider Mite ◽  
Insect Pests ◽  
Spider Mites ◽  
Mite Species ◽  
Chromosome 1 ◽  
Corn Borer ◽  
Oligonychus Pratensis

AbstractMaize (Zea mays subsp. mays) yield loss from arthropod herbivory is substantial. While the basis of resistance to major insect herbivores has been comparatively well-studied in maize, less is known about resistance to spider mite herbivores, which are distantly related to insects and feed by a different mechanism. Two spider mites, the generalist Tetranychus urticae, and the grass-specialist Oligonychus pratensis, are notable pests of maize, especially during drought conditions. We assessed the resistance to both mite species of 38 highly diverse maize lines, including several previously reported to be resistant to one or the other mite species. We found that line B96, as well as its derivatives B49 and B75, were highly resistant to T. urticae. In contrast, neither these three lines, nor any others included in our study, were notably resistant to O. pratensis. Quantitative trait locus (QTL) mapping with F2 populations from crosses of B49, B75, and B96 to susceptible B73 identified a large-effect QTL on chromosome 6 as underlying T. urticae resistance in each line, with an additional QTL on chromosome 1 in B96. Genome sequencing and haplotype analyses identified B96 as the apparent sole source of resistance haplotypes. Our study identifies loci for use in maize breeding programs for T. urticae resistance, as well as to assess if the molecular-genetic basis of spider mite resistance is shared with insect pests of maize, as B96 is also among the most resistant known maize lines to several insects, including the European corn borer, Ostrinia nubilalis.Key message Maize(Zea mays subsp. mays) inbred lines B49, B75, and B96 harbor large-effect loci for resistance to the generalist spider mite Tetranychus urticae, but not the specialist Oligonychus pratensis.

Resistance to pyridaben in Canadian greenhouse populations of two-spotted spider mites, Tetranychus urticae (Koch)

2020 ◽  
Vol 170 ◽  
pp. 104677 ◽  
Author(s):  
Hooman Hosseinzadeh Namin ◽  
Vladimir Zhurov ◽  
Jeremy Spenler ◽  
Miodrag Grbić ◽  
Vojislava Grbić ◽  
...  
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mites ◽  
Tetranychus Urticae Koch

scholarly journals Bifenazate, a prospective acaricide for spider mite (Tetranychus urticae Koch) control in Czech hops

2010 ◽  
Vol 46 (No. 3) ◽  
pp. 135-138
Author(s):  
J. Vostřel
Keyword(s):  
Czech Republic ◽  
Tetranychus Urticae ◽  
Laboratory Tests ◽  
Spider Mite ◽  
Spider Mites ◽  
The Czech Republic ◽  
Tetranychus Urticae Koch ◽  
Good Substitute

Bifenazate, a new selective carbazate acaricide, seems to be a very good substitute for propargite to control spider mites (Tetranychus urticae Koch) on hops in the Czech Republic. To investigate the phenomenon of T. urticae resistance to this compound, 20 samples of field populations were taken in several Czech and Moravian hop-growing regions in 2006 and 2007 and subjected to laboratory tests in a Potter tower. Low values of C100 M (100% mortality) in comparison with the supposed registered concentration reveal that bifenazate may become a useful acaricide within the anti-resistant strategy against T. urticae not only in Czech but also in all European hop-growing regions.

Occupational allergy due to spider mites: Tetranychus urticae (Koch) and Panonychus citri (Koch)

1996 ◽  
Vol 26 (11) ◽  
pp. 1262-1267 ◽  
Author(s):  
E. BURCHES ◽  
A. PELAEZ ◽  
C. MORALES ◽  
J.V. BRASO ◽  
A. ROCHINA ◽  
...  
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mites ◽  
Occupational Allergy ◽  
Panonychus Citri ◽  
Tetranychus Urticae Koch

Under pressure: predation risk defining mating investment in matured spider mite Tetranychus urticae

2020 ◽  
Vol 25 (8) ◽  
pp. 1359-1372
Author(s):  
Matheus S. Rocha ◽  
Lívia A. Celada ◽  
Everton N. L. Rodrigues ◽  
Luiz E. Costa-schmidt
Keyword(s):  
Decision Making ◽  
Predation Risk ◽  
Tetranychus Urticae ◽  
Laboratory Experiments ◽  
Spider Mite ◽  
Reproductive Effort ◽  
Spider Mites ◽  
Investment Behavior ◽  
Two Spotted Spider Mite ◽  
Mating Performance

The emergence of anti-predatory strategies for prey survival are ruled by the minimization of the encounters/interactions with potential predators, but at the same time by maximizing the access to limiting resources such as food or mating partners. Cues indicating predatory activity influence decision-making activities in the two-spotted spider mite Tetranychus urticae, such as dispersion, foraging activities, and reproductive effort.  However, anti-predatory strategies studied in spider mites generally considers mainly the female perspective (e.g. oviposition), leaving a gap in how T. urticae couples deal with predatory risk. Here, through laboratory experiments, we observed that matured spider mite couples were only affected by predation risk during the pre-copulatory stages of the mating process, especially when deciding to proceed in a mating opportunity. The mating performance of individuals was independent of their exposure to predation risk, suggesting that couples would adopt full investment behavior after opting to proceed in a mating attempt. Though our working hypothesis predicted predation risk interference throughout the entire mating process, we conclude that decision-making activities by spider mite during pre-copulatory stages act independently from copulatory stages associated to insemination.

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