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61 results for “Myzus”
Myzus persicae electrical penetration graph (EPG) live plant colonisation videos
<p><em>Myzus persicae</em> electrical penetration graph (EPG) traces with images of a single aphid colonising an <em>Arabidopsis thaliana </em>Col-0 leaf. The merged images and EPG traces show the process of plant colonisation ending in <em>M. persicae</em> phloem feeding as a video. Uploaded is also the script (written in the R programming language) to merge the EPGSystems analysis software 'EPG Stylet+a' exported, tabular EPG traces with camera images.</p>
Fig. 1 in Insecticidal and repellent action of pogostone against Myzus persicae (Hemiptera: Aphididae)
Fig. 1. Structure of pogostone.
Figure 1 in DNA barcoding of black cherry aphid Myzus cerasi (Fabricus, 1775) (Hemiptera: Aphididae) populations collected from Prunus avium and Prunus cerasus
Figure 1. Black cherry aphid colonies on the terminal growth of host plant (Denizli, Honaz).
Aphicidal and antifeedant activity of Synandrospadix vermitoxicus extracts against Myzus persicae on potato plants
<p>Supplemental raw data and statistics of López-Isasmendi et al.</p>
Fig. 9 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 9. SEM images of sensilla on the hind tibia of Myzus persicae nicotianae (A-D) and Myzus persicae persicae (E-H). (A, E) The leg of L2 apterous larvae with ventrally located, short type-I trichoid sensilla and a dorsally located long, curved type-I trichoid sensilla. (B, F) Apterous adult leg with evenly distributed type-I trichoid sensilla of the same length. (C, G) Type-I trichoid sensilla are elongated on the dorsal side of the hind tibia of alate L3-L4 nymphs. (D, H) Alate adults bear the same short type-I trichoid sensilla like apterae ones.
Fig. 3 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 3. SEM images of different stages of alate Myzus persicae nicotianae. (A–A′′′′) Larval stage two to three (L2-L3), (B–B′′′′) L3-L4 nymph bearing wing sheaths, and (C–C′′′′) alata. (A′-C′) Dorsal view of scabrous aphid head with distinctive vertex and diverging antennal tubercles (C′). Details of the thorax with enlarged second segment (A′′) and the base of wing buds (B′′), or fully evolved wings (C′′). The abdomen (A′′′ -C′′′) and the posterior abdominal tergites with siphunculi and cauda (A′′′′-C′′′′).
Fig. 1 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 1. Schematic sketch of green peach aphid morphology. (A) Overview of a winged adult aphid (alata) displaying the different features analysed for morphological differentiation. [1] length of the hind femur (hf); [2] length of hind tibia (ht). (B) Aphid antenna segments (I-VI). [I] scape; [II] pedicel; [III- VI] flagellum; [at] antennal tubercle; [pt] processus terminalis; [1] length of antennal segment III (ant III); [2] diameter of the basal part of segment III (dante III); [3] length of trichoid sensilla on antennal segment III (sensant III), V (sensant V) or base of segment VI (sensant VI); [4] length of the base of segment VI (base VI); [5] length of processus terminalis (pt). (C) Ventral view of the head showing the rostrum. Distance between antennal tubercles (tb); the length of the trichoid sensilla located medially on antennal tubercles (hat). (D) Siphunculus with indicated morphometric characters. Length of siphunculus (ls); minimal width of the proximal part ('stem') of siphunculus (pws); maximal width of distal, swollen part of siphunculus (mws).
Fig. 6 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 6. SEM images of the antenna and corresponding sensilla of the apterous L1 larva (A–A′′′), apterous L2 larva (B–B′′′), and apterous adult (C–C′′′), as well as alate L2-L3 nymph (D–D′′′), alate L3-L4 nymph (E–E′′′), and alate adult (F–F′′′) of Myzus persicae nicotianae. (A–F) The third antennal segment with (B–F) or without (A) type-I trichoid sensilla (blue-coloured). Adult alate specimens bore small multiporous placoid sensilla (secondary rhinaria, pink-coloured) within cuticle cavities along the segment (F). (A′-F′) The distal fifth segment with type-I trichoid sensilla (blue-coloured) and big multiporous placoid sensillum (secondary rhinarium, redcoloured), partially covered by cuticular protrusions. (A′′-F′′) The base of the antennal segment VI with multiple big placoid sensilla (primary rhinaria, red-coloured), type-I (green-coloured), and type-II (yellow-coloured) sunken coeloconic rhinaria, all enclosed by cuticle protrusions in separate cavities. (A′′′ -F′′′) Distal processus terminalis with four type-II trichoid sensilla (purple-coloured).
Fig. 5 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 5. SEM images of juvenile and adult alate Myzus persicae persicae. Nymph at developmental stages two to three, L2-L3 (A–A′′′′) or three to four, L3-L4 (B–B′′′′), and adult (C–C′′′′). The head and antennal tubercles (A′, B′) with diverging features and distinctive vertex (C′). The thoracic segments show an enlarged, still wingless second segment (A′′), the roots of the nymphal wing buds (B′′), and the segment with the attachment point of the forewings (C′′). The overview of the abdominal tergites identifies structural differences between juveniles (A′′′, B′′′) and adult (C′′′). Posterior abdominal tergites and cauda with the siphunculi (A′′′′, B′′′′) exhibiting distal swelling (C′′′′).
Fig. 4 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 4. SEM images of different morphs of apterous Myzus persicae persicae. Larva at developmental stage one, L1 (A–A′′′′) and two, L2 (B–B′′′′), and adult (C–C′′′′). The dorsal, wrinkled head (A′, B′) with some spicules (C′). The three dorsally sculptured thoracic segments (A′′-C′′) and the abdomen (A′′′-C′′′). (A′′′′ -C′′′′) Details of the posterior abdominal tergites with the dorsally located, compressed, and distally swollen (A′′′′, B′′′′) or long cylindrical (C′′′′) siphunculi and the transition to the cauda.
Fig. 2 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 2. SEM images of different stages of apterous Myzus persicae nicotianae. (A–A′′′′) L1, (B–B′′′′) L2, (C–C′′′′) adult. (A′-C′) Dorsal head structure. (A′′-C′′) Thoracic segments. (A′′′-C′′′) Abdominal segments. (A′′′′ -C′′′′) The 8th tergite and the cauda with siphunculi.
Fig. 7 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 7. SEM images of the antennal segments III, V, VI, and corresponding sensilla of Myzus persicae persicae. Apterous L1 (A–A′′′), L2 (B–B′′′), apterous adult (C–C′′ ′), alate L2-L3 nymph (D–D′′′), alate L3-4 nymph (E), and alate adult (F). Antennal segment III without sensilla (A, B) or with evenly distributed type-I trichoid sensilla (blue-coloured, C–F). Adult alate also bore small multiporous placoid sensilla (secondary rhinaria, pink-coloured, F). Segment V with type-I trichoid sensilla (blue-coloured,C′,D′) and big multiporous placoid sensillum (red-coloured) enclosed in a cuticular cavity and covered by protrusions (A′, B′, E′, F′). (A′′-F′′) Base of the sixth segment with type-I trichoid sensilla (blue-coloured) and a group of primary rhinaria composed of three big multiporous placoid sensilla of different sizes (red-coloured), and sunken type-I (green-coloured) and type-II (yellow-coloured) coeloconic sensilla. (A′′′-F′′′) Group of four type-II trichoid sensilla (purple-coloured) at the distal terminal process.
Fig. 8 in Comparing morphology of Myzus persicae regarding the taxonomic clarification of a subspecies colonising tobacco
Fig. 8. SEM images of wings of adult alatae Myzus persicae nicotianae and Myzus persicae persicae (A–D) and nymphal wing buds (E, F). Adult M. p. nicotianae forewing (A′) and hindwing (A′′) surface with distinct crescent- and arrow-shaped structures covering the edges. (B) The M. p. persicae fore- and hindwing surface. (B′, B′′) Small crescent-shaped structures cover the distal parts and veins of the wing with centered small knobby structures. (B′) An arrow marks a hamulus on the claval apparatus of the hindwing. (C) White arrows point to the hamuli on the hindwings of alate specimen of M. p. persicae. Hamuli on the left (C′) and right (C′′) hindwing are surrounded by numerous crescent-shaped structures that also cover the veins and distal parts of the wing. (D) The fore- and hindwing of an alate M. p. persicae show the pterostigma and surrounding structures on the wing membrane with scale-shaped elements of varying shapes (D′). Nymphal wing buds of M. p. persicae (E) and M. p. nicotianae (F).
FIGURE 6 in Description of fundatrix and sexual morphs of the Asian apricot aphid, Myzus mumecola (Matsumura, 1917) (Hemiptera: Aphididae)
FIGURE 6. Tarsi of the oviparous female of Myzus mumecola: a—fore tarsus, b—middle tarsus, c—hind tarsus
FIGURE 5 in Description of fundatrix and sexual morphs of the Asian apricot aphid, Myzus mumecola (Matsumura, 1917) (Hemiptera: Aphididae)
FIGURE 5. Photographs of clarified slide mounts of Myzus mumecola: a—fundatrix, b—oviparous female, c—alate male, d—alate gynopara
Effects of Extrinsic Interactions on Fertility Life Table of Aphidius matricariae and Praon volucre on Myzus persicae
<p>Data is related to the manuscript Effects of Extrinsic Interactions on Fertility Life Table of Aphidius matricariae and Praon volucre on Myzus persicae</p>
Fig. 12 in First record of Myzus (Nectarosiphon) persicae (Sulzer, 1776) (Hemiptera: Aphididae) occuring on Valeriana fauriei (Caprifoliaceae)
Fig. 12. Morphs of two M. persicae populations reared on buckwheat plants (15 °C, 10L:14D) over four generations (Gen — generation of the single adult viviparous female initially transferred on buckwheat at maintained (15 °C, 10L:14D) was defined as the first generation; N — population from Nayoro; P — population from Pippu; rep — replication; APT — apterous viviparous female; ALT — alate viviparous female). Рис. 12. Морфы двух популЯций M. persicae, выраЩенных на растениЯх гречихи (15 °C, 10L:14D), в течение четырёх поколений (Gen — поколение единственной вЗрослой живородЯЩей самки, первоначально перенесённоq на гречиху (15 °C, 10L:14D), было принЯто как первое поколение; N — популЯциЯ иЗ Наёро; P — популЯциЯ иЗ Пиппу; rep — раЗмножение; APT — бескрылаЯ живородЯЩаЯ самка; ALT — крылатаЯ живородЯЩаЯ самка).
Figs 10–11 in First record of Myzus (Nectarosiphon) persicae (Sulzer, 1776) (Hemiptera: Aphididae) occuring on Valeriana fauriei (Caprifoliaceae)
Figs 10–11. Myzus persicae collected from Valeriana fauriei: 10 — adult apterous viviparous female (specimen number: 37098); 11 — alate viviparous female (specimen number: 38011). Scale bars: 1 mm. Рис. 10–11. Myzus persicae собраннаЯ с Valeriana fauriei: 10 — вЗрослаЯ бескрылаЯ живородЯЩаЯ самка (номер ЭкЗемплЯра: 37098); 11 — крылатаЯ живородЯЩаЯ самка (номер ЭкЗемплЯра: 38011). МасШтабные линейки: 1 мм.
Figs 1–9 in First record of Myzus (Nectarosiphon) persicae (Sulzer, 1776) (Hemiptera: Aphididae) occuring on Valeriana fauriei (Caprifoliaceae)
Figs 1–9. Valeriana fauriei plant, Myzus persicae occurring on the plant, and plant damage caused by the aphid: 1 — nursery plant of V. fauriei; 2 — colony infesting the plant part near the growing point; 3 — adult apterous viviparous female; 4 — colony infesting the underside of a lower leaf; 5–6 — adult apterous viviparous females; 7 — alate viviparous female; 8 — smearing of the upper side of a lower leaf with honeydew and exuviae produced by the aphids; 9 — withered the leaves of V. fauriei; 1–3 — Nayoro (April 2020); 4–7 — Pippu (December 2020); 8–9 — Pippu (November 2020). Рис. 1–9. Valeriana fauriei, Myzus persicae и повреждениЯ, выЗванные тлёй: 1 — саженцы V. fauriei; 2 — колониЯ, поражаюЩаЯ часть растениЯ рЯдом с точкой роста; 3 — вЗрослаЯ бескрылаЯ живородЯЩаЯ самка; 4 — колониЯ, поражаюЩаЯ нижнюю часть нижнего листа; 5–6 — вЗрослые бескрылые живородЯЩие самки; 7 — крылатаЯ живородЯЩаЯ самка; 8 — верхнЯЯ сторона нижнего листа, ЗагрЯЗнённаЯ медвЯной росой и ЭкЗувиЯ тлей; 9 — увЯдШие листьЯ V. fauriei; 1–3 — Наёро (апрель 2020 г.); 4–7 — Пиппу (декабрь 2020 г.); 8–9 — Пиппу (ноЯбрь 2020 г.).
FIGURE 7 in Description of fundatrix and sexual morphs of the Asian apricot aphid, Myzus mumecola (Matsumura, 1917) (Hemiptera: Aphididae)
FIGURE 7. Hind tarsus of a nymph of a—Myzus mumecola, b—Myzus cerasi
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