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124 results for “Aphis”
Fig. 24. Aphis beccabungae Koch, 1855 in Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea)
Fig. 24. Aphis beccabungae Koch, 1855. Apt. and juv. on Galeopsis speciosa. A. beccabungae is very similar to A. gossypii Glover, 1877.
Fig. 2. Linear regression models showing the relationship between Aphis citricola and Harmonia axyridis abundance. A in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 2. Linear regression models showing the relationship between Aphis citricola and Harmonia axyridis abundance. A: Catnip (Nepeta cataria) + French marigold (Tagetes patula), B: ageratum (Ageratum houstonianum) + French marigold, C: catnip + ageratum, and D: native vegetation.
Fig. 6 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 6. Typical chromatograms obtained from headspace collections of volatiles from French marigold (Tagetes patula) (B) and catnip (Nepeta cataria) (C). A, air control.
Fig. 9 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 9. An Aphis citricola infestation model showing the effects of aromatic plant volatiles. Solid arrows refer to positive effects. Dotted lines refer to negative effect. The thickness of the arrows indicates the magnitude of the effects. The model includes data from this study and the studies by Song et al. (2013) and Chen et al (2014).
Fig. 8 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 8. Response of Harmonia axyridis adults to 12.5 μL/L, 25 μL/L, and 50 μL/L 1:1 mixed D-limonene and terpinolene afer 60 min. A: No aphids; B: aphids present. The numbers of asterisks represent the level of significance: ** highly significant (P <0.01); * significant (P <0.05); n.s. no significant difference.
Fig. 5 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 5. Differences in the number of Harmonia axyridis adults responding to French marigold (Tagetes patula) (A) and catbip (Nepeta cataria) (B) afer 60 min. T: Apple trees + aromatic plants; CK: apple trees. Aphids removed: aphids introduced for 2 h and then removed. The numbers of asterisks represent the level of significance: * significant (P <0.05); n.s. no significant difference.
Fig. 7 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 7. Differences in the number Harmonia axyridis adults in response to 12.5 μL/L, 25 μL/L, and 50 μL/L D-limonene (A, B) and terpinolene (C, D) afer 60 min. A, C: No aphids;B, D: aphids present.The numbers of asterisks represent the level of significance:** highly significant (P <0.01);* significant (P <0.05);n.s. no significant difference.
Fig. 3 in Behavioral responses of Aphis citricola (Hemiptera: Aphididae) and its natural enemy Harmonia axyridis (Coleoptera: Coccinellidae) to non-host plant volatiles
Fig. 3. Linear regression models showing the relationship in the ratio of Harmonia axyridis abundance to Aphis citricola abundance with sampling years. A: Catnip (Nepeta cataria) + French marigold (Tagetes patula), B: ageratum (Ageratum houstonianum) + French marigold, C: catnip + ageratum, and D: native vegetation.
Fig. 5 in Evaluating categories of resistance in soybean genotypes from the United States and Brazil to Aphis glycines (Hemiptera: Aphididae)
Fig. 5. Mortality (%) of Aphis glycines on 7 soybean genotypes at 5, 7, and 10 d afer infestation (23 ± 3 °C; 60 ± 10% RH; 16:8 h L:D photoperiod).
Fig. 4 in Evaluating categories of resistance in soybean genotypes from the United States and Brazil to Aphis glycines (Hemiptera: Aphididae)
Fig. 4. Cumulative aphid-days (CAD) for soybean genotypes infested with Aphis glycines at V1 and V3 stages (23 ± 3 °C; 60 ± 10% RH; 16:8 h L:D photoperiod).
Fig. 3 in Evaluating categories of resistance in soybean genotypes from the United States and Brazil to Aphis glycines (Hemiptera: Aphididae)
Fig. 3. Number (mean ± SE) of Aphis glycines individuals on 7 soybean genotypes 24 h afer infestation (23 ± 3 °C; 60 ± 10% RH; 16:8 h L:D photoperiod). Means with the same lower case letter do not differ by Fisher's LSD test (P> 0.05). (F = 1.74; df = 6; P = 0.0110).
Fig. 2 in Evaluating categories of resistance in soybean genotypes from the United States and Brazil to Aphis glycines (Hemiptera: Aphididae)
Fig. 2. Number (mean ± SE) of Aphis glycines individuals on KS4202 plants 24 h afer infestation (23 ± 3 °C; 60 ± 10% RH; 16:8 h L:D photoperiod). Means with the same lower case letter do not differ by Fisher's LSD test (P> 0.05). (F = 1.09; df = 6; P = 0.3897).
Improved genome assembly and annotation of the soybean aphid (Aphis glycines Matsumura)
<p>Updated genome assembly and annotation of <em>Aphis glycines</em> biotype 4.</p> <p><strong>Overview of files included in this release:</strong></p> <p><strong>Frozen release:</strong></p> <p>Updated <em>A. glycines </em>biotype 4 genome assembly: Aphis_glycines_4.v2.1.scaffolds.fa.gz </p> <p>BRAKER2 gene models for updated <em>A. glycines </em>biotype 4 genome assembly: Aphis_glycines_4.v2.1.scaffolds.fa.gff</p> <p>BRAKER2 protein sequences: Aphis_glycines_4.v2.1.scaffolds.fa.gff.aa.fa</p> <p>BRAKER2 nucleotide coding sequences: Aphis_glycines_4.v2.1.scaffolds.fa.gff.CDS.fa</p> <p><strong>Unfiltered raw intermediate genome assemblies:</strong></p> <p>Canu assembly of biotype 4 PacBio data from Wenger et. al. (2017): canu.fa.gz</p> <p>DBG2OLC hybrid assembly of selected biotype 4 MiSeq data and biotype 4 PacBio data from Wenger et. al. (2017): DBG2OLC.fa.gz</p> <p>Merged Canu and DBG2OLC assembly created with quickmerge: quickmerge.fa.gz</p> <p>Pilon polished (2 rounds) quickmerge assembly: quickmerge.pilon_r2.fa.gz</p> <p><strong>Mitochondrial and endosymbiont contigs extracted from the pilon polished quickmerge assembly: </strong></p> <p><em>A. glycines </em>biotype 4 mitochondrial genome: Aphis_glycines_4_Buchnera_v1.fa</p> <p><em>A. glycines </em>biotype 4 <em>Buchnera aphidicola</em> contigs: Aphis_glycines_4_Buchnera_v1.fa</p> <p><em>A. glycines </em>biotype 4 <em>Wolbachia</em> contigs: Aphis_glycines_4_Buchnera_v1.fa</p> <p><strong>Other files:</strong></p> <p>MUSCLE alignment of <em>A. glycines </em>v1, <em>A. glycines </em>biotype 4 v2.1 and <em>Drosophila melanogaster</em> R6.22 Osiris proteins in fasta format: D_mel_v1_v2_osiris.prots.muscle.fasta</p> <p>FastTree Maximum Likelihood phylogeny based on the MUSCLE alignment of Osiris genes in newick format: D_mel_v1_v2_osiris.prots.muscle.FastTree.nwk</p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p>
Figure 1 in Host instars preference, density-dependent parasitism and behavioral perspective of parasitoids (Aphidius colemani, Aphidius matricariae and Aphelinus abdominalis) in Aphis glycines and Aphis gossypii
Figure 1: Comparison of parasitoids (Ad.colemani, Ad.matricariae and Al.abdominalis) on different ages (nymphal instars) of the(A) As.glycines (n= 30) and (B) As. gossypii (n= 30).
Figure 2 in Orientation of Hippodamia variegata (Coleoptera: Coccinellidae) to healthy and Beauveria bassiana-infected Aphis fabae (Hemiptera: Aphididae) in an olfactometer system
Figure 2. Response of Hippodamia variegata to broad bean plants infested by A. fabae infected by Beauveria bassiana at the interval of 0 h after infection versus broad bean plants infested by A. fabae infected by B. bassiana at intervals of 24 (a), 48 (b), and 72 (c) h after infection. The white bars indicate the numbers of insects choosing broad bean plants infested by A. fabae infected by B. bassiana at intervals of 24, 48, and 72 h after infection, whereas the black bars indicate the numbers of insects that chose broad bean plants infested by A. fabae infected by B. bassiana at the interval of 0 h after infection.
Figure 4 in Orientation of Hippodamia variegata (Coleoptera: Coccinellidae) to healthy and Beauveria bassiana-infected Aphis fabae (Hemiptera: Aphididae) in an olfactometer system
Figure 4. Response of Hippodamia variegata to broad bean plants infested by A. fabae infected by Beauveria bassiana at the interval of 48 h after infection versus broad bean plants infested by A. fabae infected by B. bassiana at the interval of 72 h after infection. The white bars indicate the numbers of insects choosing broad bean plants infested by A. fabae infected by B. bassiana at the interval of 72 h after infection, whereas the black bars indicate the numbers of insects that chose broad bean plants infested by A. fabae infected by B. bassiana at the interval of 48 h after infection.
Figuras 1-4 in Aspectos biológicos y capacidad depredadora del sírfido Ocyptamus gastrostactus (Wiedemann, 1830) (Diptera: Syrphidae) alimentado con Aphis craccivora Koch, 1854 (Hemiptera: Aphididae) en condiciones de laboratorio
Figuras 1-4. Fases de desarrollo de Ocyptamus gastrostactus alimentado con Aphis craccivora. 1. Huevo. 2. Tercer estadio larval. 3. Pupa. 4. Hembra. Escala: 1 mm. (Fotos: E. Arcaya). / Development phases of Ocyptamus gastrostactus fed Aphis craccivora. 1. Egg. 2. Third larval stage. 3. Pupa. 4. Female. Scale: 1 mm. (Photos: E. Arcaya).
Fig. 1 in Feeding behavior of Aphis glycines (Hemiptera: Aphididae) on soybeans exhibiting antibiosis, antixenosis, and tolerance resistance
Fig. 1. Mean number of potential drops by Aphis glycines on soybean genotypes for a 15 h (900 min) period.
Fig. 2 in Feeding behavior of Aphis glycines (Hemiptera: Aphididae) on soybeans exhibiting antibiosis, antixenosis, and tolerance resistance
Fig. 2. Mean duration of sieve element phase by Aphis glycines on soybean genotypes for a 15 h (900 min) period.
Fig. 2 in Effects of temperature on survival, development, and reproduction of Aphis glycines (Hemiptera: Aphididae) autumnal morphs
Fig. 2. Age-specific fecundity (fx) of Aphis glycines gynoparae and oviparae on overwintering host, Rhamnus davurica at 13, 18, 23, and 28 °C.
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