#urticae - Twitter Hashtag

Entomological Society of India- IJE @EntoIndia

over 1 year ago

Efficacy of Predators Against Spider Mite Tetranychus urticae https://t.co/wGfDfkuyKZ #ije #ESI #india #indianentomology #entosocindia #entomologicalsocietyofindia #Society #Researcharticle #insect #Spider #Mite #Tetranychus #urticae #tomato #pumpkin #Phytoseiulus

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Stefan F. Wirth

@wirthstef

almost 3 years ago

The #psyllid #Trioza #urticae is tied to a specific group of #hostplants. They are sometimes perceived by other #insects in shades of #gray and can harbor #plantpathogenic #bacteria. Enemies are predatory insects, like lady beetles. Depending on the predator taxon, the prey is #perceived differently in terms of its #color. The #wavelengths that insects can perceive begin with the UV spectrum and extend below the color red. Therefore, as a small #artistic project, I have presented a specimen in the color that our vertebrate eyes can perceive, a further specimen in which the #reddish parts that are not visible to insects are highlighted, and a third specimen in shades of gray, as it is at least partially seen by various insect predator species. Trioza urticae (#Sternorrhyncha, #Hemiptera) is #hostspecific for stinging nettles (#Urticaceae). The adults overwinter (at least in Central Europe). The nymphs that hatched after mating in the following year induce #galls to their host plant, in which they develop and which cause the leaves to curl and bend, thereby interfering with the growth of the nettle shoots. #Jumpingplantlice can harbor and spread plant pathogenic #microorganisms. Psyllid species spread the bacterium #Candidatus #Liberibacter #solanacearum as an important plant pathogen native to North America that there infects apiaceous and solanaceous #crops. However, the bacterium could already be found in Finland in the form of the so-called #haplotype U on Trioza urticae and U. dioica. The authors M. J. Sjölund et al. (2018) provided the first evidence for the bacterium CLso in Trioza urticae in #Germany. It was found with an unknown haplotype on a T. urticae specimen from a population near the city Quedlinburg (Saxony-Anhalt, Germany). Now I would like to return to the #colorimpression that predators and other insects in general get from T. urticae. This is difficult to define in detail and across insects, as the preferred #colorspectrum can vary from species to species, depending on the ecology, morphology and physiology. The authors Bo-Mi Song & Chi-Hon Lee (2018) dealt with the general “Mechanistic Understanding of #ColorVision in Insects”. Their studies showed at least one commonality in insects, namely that insects have an #oppositionbased processing for “#truecolorvision”. Thus this affects insects as well as vertebrates. Ecology, physiology and eye morphology initially play no role on that general level. © StefanFWirth Berlin Sources : M. J. Sjölund et al. (2018): https://t.co/8aREDmEjYx Bo-Mi Song & Chi-Hon Lee (2018): https://t.co/9qWYBh2vN6

wirthstef's tweet photo. The #psyllid #Trioza #urticae is tied to a specific group of #hostplants. They are sometimes perceived by other #insects in shades of #gray and can harbor #plantpathogenic #bacteria. Enemies are predatory insects, like lady beetles.

Depending on the predator taxon, the prey is #perceived differently in terms of its #color. The #wavelengths that insects can perceive begin with the UV spectrum and extend below the color red. Therefore, as a small #artistic project, I have presented a specimen in the color that our vertebrate eyes can perceive, a further specimen in which the #reddish parts that are not visible to insects are highlighted, and a third specimen in shades of gray, as it is at least partially seen by various insect predator species.

Trioza urticae (#Sternorrhyncha, #Hemiptera) is #hostspecific for stinging nettles (#Urticaceae). The adults overwinter (at least in Central Europe). The nymphs that hatched after mating in the following year induce #galls to their host plant, in which they develop and which cause the leaves to curl and bend, thereby interfering with the growth of the nettle shoots.

#Jumpingplantlice can harbor and spread plant pathogenic #microorganisms. Psyllid species spread the bacterium #Candidatus #Liberibacter #solanacearum as an important plant pathogen native to North America that there infects apiaceous and solanaceous #crops. However, the bacterium could already be found in Finland in the form of the so-called #haplotype U on Trioza urticae and U. dioica. The authors M. J. Sjölund et al. (2018) provided the first evidence for the bacterium CLso in Trioza urticae in #Germany. It was found with an unknown haplotype on a T. urticae specimen from a population near the city Quedlinburg (Saxony-Anhalt, Germany).

Now I would like to return to the #colorimpression that predators and other insects in general get from T. urticae. This is difficult to define in detail and across insects, as the preferred #colorspectrum can vary from species to species, depending on the ecology, morphology and physiology. The authors Bo-Mi Song & Chi-Hon Lee (2018) dealt with the general “Mechanistic Understanding of #ColorVision in Insects”. Their studies showed at least one commonality in insects, namely that insects have an #oppositionbased processing for “#truecolorvision”. Thus this affects insects as well as vertebrates. Ecology, physiology and eye morphology initially play no role on that general level.

© StefanFWirth Berlin

Sources :

M. J. Sjölund et al. (2018):
https://t.co/8aREDmEjYx

Bo-Mi Song & Chi-Hon Lee (2018):
https://t.co/9qWYBh2vN6

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Stefan F. Wirth

@wirthstef

about 3 years ago

#Sternorrhyncha (#Hemiptera) is a clade that includes (hopping) #plantlice, white flies, scale insects and aphids. Most species are phloem sucking #plant #parasites. Shown here is the plant louse #Trioza #urticae using #stinging #nettles as plant host. Plant #pests are not freaks of nature or plagues created by supernatural beings to punish humanity for its sins. Plant parasites are the result of #evolution and under favorable circumstances can have a positive #regulating effect on the #population density of their #hosts. In addition, plant parasites can themselves be hosts to various #parasitoids. Their existence is therefore closely linked to #interactions with other #species. In this way they contribute to the preservation of #biodiversity. Plant lice form the clade #Psylloidea. The group is characterized by jumps that can usually be performed with the hind legs and e.g. by their nymphs having a specific order of pore openings for #waxglands. Some species can produce plant #galls. Trioza urticae is found on stinging nettles. My macro photo shows an adult individual on #Urtica #dioica in an #urban #park in #Berlin. The species can produce up to four generations per year in Central Europe, but is otherwise also distributed in Asia and North Africa. Trioza urticae is #hostspecific for stinging nettles (#Urticaceae). The adults overwinter (at least in Central Europe). The nymphs that hatched after mating in the following year induce galls to their #hostplant, in which they develop and which cause the leaves to curl and bend, thereby interfering with the growth of the nettle shoots. Possible parasitoids for Psylloidea are gall midges (#Cecidomyiidae), parasitoid #Hymenoptera and e.g. the entomopathogenic #fungus Entomophthora sphaerosperma (#Entomophthoromycota). Not to forget the natural #predators of the Psylloidea such as ladyeetles, heteropteran bugs or spiders/arachnids. The specific parasitoids of Trioza urticae are not known to me. © Stefan F. Wirth June 2023 Berlin park Rehberge urbannature parasitism hostspecificy

wirthstef's tweet photo. #Sternorrhyncha (#Hemiptera) is a clade that includes (hopping) #plantlice, white flies, scale insects and aphids. Most species are phloem sucking #plant #parasites. Shown here is the plant louse #Trioza #urticae using #stinging #nettles as plant host.

Plant #pests are not freaks of nature or plagues created by supernatural beings to punish humanity for its sins. Plant parasites are the result of #evolution and under favorable circumstances can have a positive #regulating effect on the #population density of their #hosts. In addition, plant parasites can themselves be hosts to various #parasitoids. Their existence is therefore closely linked to #interactions with other #species. In this way they contribute to the preservation of #biodiversity.

Plant lice form the clade #Psylloidea. The group is characterized by jumps that can usually be performed with the hind legs and e.g. by their nymphs having a specific order of pore openings for #waxglands. Some species can produce plant #galls.

Trioza urticae is found on stinging nettles. My macro photo shows an adult individual on #Urtica #dioica in an #urban #park in #Berlin. The species can produce up to four generations per year in Central Europe, but is otherwise also distributed in Asia and North Africa.

Trioza urticae is #hostspecific for stinging nettles (#Urticaceae). The adults overwinter (at least in Central Europe). The nymphs that hatched after mating in the following year induce galls to their #hostplant, in which they develop and which cause the leaves to curl and bend, thereby interfering with the growth of the nettle shoots.

Possible parasitoids for Psylloidea are gall midges (#Cecidomyiidae), parasitoid #Hymenoptera and e.g. the entomopathogenic #fungus Entomophthora sphaerosperma (#Entomophthoromycota). Not to forget the natural #predators of the Psylloidea such as ladyeetles, heteropteran bugs or spiders/arachnids. The specific parasitoids of Trioza urticae are not known to me.

© Stefan F. Wirth June 2023 Berlin park Rehberge urbannature parasitism hostspecificy

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Matthew Gates @Synchangel

almost 5 years ago

"A wild SPIDER MITE appeared!" and what to do about it, #Tetranychus #urticae https://t.co/MdqwCcugYh

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FrikiGen || OFICIAL @FrikiGenES

over 5 years ago

¿Habéis visto el nuevo filtro de Instagram @bethesda_ESP? 😍 Las creadores son @jenherranz y #Urticae.

Bethesda Español

@bethesda_ESP

over 5 years ago

😈 ¡Celebramos el lanzamiento de #GatesofOblivion con este increíble filtro de Instagram que os convertirá temporalmente en daedra! 😈 Probadlo a través de nuestro perfil utilizando el móvil 📲 https://t.co/ns71PeIXa1 Creadoras: @jenherranz y #Urticae.

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Bethesda Español

@bethesda_ESP

over 5 years ago

😈 ¡Celebramos el lanzamiento de #GatesofOblivion con este increíble filtro de Instagram que os convertirá temporalmente en daedra! 😈 Probadlo a través de nuestro perfil utilizando el móvil 📲 https://t.co/ns71PeIXa1 Creadoras: @jenherranz y #Urticae.

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Simón Pérez @simonperex

over 6 years ago

Con la subida de temperaturas ya se están viendo grandes daños de #tetranychus #urticae en #melon de #invernadero Una plaga bastante problemática si no se toman las medidas necesarias... #melon #plaga #plagas #agriculture #agricultura #agricultura_covid19 #AgriculturaFamiliar

simonperex's tweet photo. Con la subida de temperaturas ya se están viendo grandes daños de #tetranychus #urticae en #melon de #invernadero
Una plaga bastante problemática si no se toman las medidas necesarias...
#melon #plaga #plagas #agriculture #agricultura #agricultura_covid19 #AgriculturaFamiliar https://t.co/DVFdFup3Gr

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Patricia Carrasco @patrucarrasco

almost 8 years ago

Y en #ciencias utilizamos muchísimos nombres #científicos en #latín como #viridis=verde, #megacephala=cabeza grande,#bipunctata=2puntos,#cyanea=azul,#urticae=urticante...El #latin es #LenguaViva!#latinismos #4ºESO @proyectocartama @RaquelCartima @CarmenBalleste @auro_carretero

Lidia @Lidia93175358

almost 8 years ago

Mucha gente cree que el latín ya es una lengua muerta, pero no es así, hoy en día segumos usando el latín en nuestro día a día, ¿y cómo es eso? Con los latinismos, es decir, palabras de origen latino y que se siguen diciendo igual o muy parecido.

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