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opencc-by-4.0Mar 2015View details →

Fig. 2 in Ultrastructure and development of the new stylets inside pre-molting first instar nymphs of the Asian citrus psyllid Diaphorina citri (Hemiptera: Liviidae)

Fig. 2. Transmission electron micrographs of thin sections in other organs of 1st instar nymphs of D. citri. A & B. The esophagus (A) and tracheal cells (B) of a pre-molting nymph; bl, basal lamina; ep, epithelial cells; nc, new cuticle; nt, new taenidia; nu, nucleus; oc, old cuticle, ot, old taenidia. C. Part of the filter chamber showing the chamber wall (cw), anterior midgut (amg) and posterior midgut (pmg); double arrows indicate closely apposed basal lamina of the anterior and posterior midgut; aml, anterior midgut lumen; mv, microvilli; pml, posterior midgut lumen. D. Bacteriocyte cell in the bacteriome with a large nucleus (nu) and various shaped electron-dense bacterial cells (ed). E. Another part of the bacteriome with 2 types of bacterial cells: electron-dense (ed) and electron-lucent (el).

Fig. 3 in Toxicity of an acetogenin-based bioinsecticide against Diaphorina citri (Hemiptera: Liviidae) and its parasitoid Tamarixia radiata (Hymenoptera: Eulophidae)

Fig. 3. Percentage of emergence of Tamarixia radiata adults exposed to ethanolic extract from Annona mucosa seeds (ESAM) during their larval stage. The concentration of extract used was equivalent to the LC90 (4,463.00 mg/L) estimated for D. citri adults (120 h of exposure).

Fig. 4 in Toxicity of an acetogenin-based bioinsecticide against Diaphorina citri (Hemiptera: Liviidae) and its parasitoid Tamarixia radiata (Hymenoptera: Eulophidae)

Fig. 4. Corrected mortality (Schneider-Orelli 1947) of Diaphorina citri adults exposed to residue on 'Valência' sweet orange seedlings treated with an aqueous emulsion of ethanolic extract from Annona mucosa seeds — ESAM (●) — or the commercial limonoid-based bioinsecticide Azamax® 1.2 EC (O) used as a positive control, at different periods afer application in a semi-field trial (greenhouse). The mortality levels were lower than 7.5% in the controls.

Fig. 1 in Toxicity of an acetogenin-based bioinsecticide against Diaphorina citri (Hemiptera: Liviidae) and its parasitoid Tamarixia radiata (Hymenoptera: Eulophidae)

Fig. 1. Effect of ethanolic extract from Annona mucosa seeds (ES- AM) on oviposition preference of copulated Diaphorina citri females (A) and on feeding in non-sexed D. citri adults (B). Both tests were conducted without opportunity to choose, and the concentration of the extract used was equivalent to the LC25 (224.92 mg/L) previously estimated for D. citri adults (120 h of exposure).

Fig. 2 in Toxicity of an acetogenin-based bioinsecticide against Diaphorina citri (Hemiptera: Liviidae) and its parasitoid Tamarixia radiata (Hymenoptera: Eulophidae)

Fig. 2. Filter paper discs (experimental units) of the control and treatment with ethanolic extract from Annona mucosa seeds (ESAM). Dark points inside the discs comprise honeydew drop areas excreted by Diaphorina citri adults exposed to the referred treatments, which were stained with a ninhydrin:acetone solution (1%, v/v).

Fig. 2 in Effects of cold-acclimation, pathogen infection, and varying temperatures on insecticide susceptibility, feeding, and detoxifying enzyme levels in Diaphorina citri (Hemiptera: Liviidae)

Fig. 2. Quantification of the transcription levels of 5 CYP4 genes from uninfected and Las-infected Diaphorina citri populations (A). Cq values were first normalized to the endogenous control gene actin. Standard deviations were calculated on the basis of 5 independent samples with 3 technical replicates each. Asterisks indicate statistically significant differences (P <0.05). Western blot of CYP4 microsomal proteins from 4 independent samples isolated from uninfected and Las-infected D. citri (B).

opencc-by-4.0Mar 2016View details →

Fig. 1 in Reversal of insecticide resistance in Florida populations of Diaphorina citri (Hemiptera: Liviidae)

Fig. 1. Resistance ratios at the 50% response level using the most susceptible population as a comparison for the 3 nicotinic acetylcholine receptor agonists evaluated in this study. Abbreviations for insecticides are FLU, flupyradifurone; IMID, imidacloprid; THIA, thiamethoxam. Abbreviations for sites are LB, LaBelle; LA, Lake Alfred; SL, Port St. Lucie; WG, Winter Garden.

opencc-by-4.0Mar 2015View details →

Fig. 2 in Mexican strains of Hirsutella isolated from Diaphorina citri (Hemiptera: Liviidae): Morphologic and molecular characterization

Fig. 2. Phylogenetic tree constructed with sequences of the 28S ribosomal gene of 14 Hirsutella species enlisted in the NCBI and 7 Mexican strains isolated from D. citri in Mexico. Percentages from bootstrap analysis that support branches in the tree are shown in the respective nodes. Scale represents the number of substitutions/100 nucleotides.

opencc-by-4.0Mar 2015View details →

Fig. 3 in Mexican strains of Hirsutella isolated from Diaphorina citri (Hemiptera: Liviidae): Morphologic and molecular characterization

Fig. 3. Percentage of mucilaginous colonies developed from fragments of mycelial colonies of 7 Hirsutella Mexican strains afer 5 days under dark conditions. Values followed by the same letter did not differ statistically (Tukey; P = 0.05). Lines in the bars indicate SD.

Figures 12-13 from: Qilemoge, Wang M, Yang D (2018) Three new species of Argyra from China (Diptera, Dolichopodidae, Diaphorinae). ZooKeys 772: 141-151. https://doi.org/10.3897/zookeys.772.25406

Figures 12-13 Argyra sichuanensis sp. n. male. 12 antenna, lateral view 13 genitalia, lateral view. Abbreviations: hyp = hypandrium, sur (v) = ventral lobe of surstylus, sur (d) = dorsal lobe of surstylus, cer = cercus. Scale bars: 0.2 mm.

Figures 7-9 from: Qilemoge, Wang M, Yang D (2018) Three new species of Argyra from China (Diptera, Dolichopodidae, Diaphorinae). ZooKeys 772: 141-151. https://doi.org/10.3897/zookeys.772.25406

Figures 7-9 Argyra longicornis sp. n. male. 7 antenna, lateral view 8 genitalia, lateral view 9 cercus, lateral view. Abbreviations: hyp = hypandrium, sur (v) = ventral lobe of surstylus, sur (d) = dorsal lobe of surstylus, cer = cercus. Scale bars: 0.2 mm.

Figures 10-11 from: Qilemoge, Wang M, Yang D (2018) Three new species of Argyra from China (Diptera, Dolichopodidae, Diaphorinae). ZooKeys 772: 141-151. https://doi.org/10.3897/zookeys.772.25406

Figures 10-11 Argyra pingwuensis sp. n. male. 10 antenna, lateral view 11 genitalia, lateral view. Abbreviations: hyp = hypandrium, sur (v) = ventral lobe of surstylus, sur (d) = dorsal lobe of surstylus, cer = cercus. Scale bars: 0.2 mm.

Figures 1-6 from: Qilemoge, Wang M, Yang D (2018) Three new species of Argyra from China (Diptera, Dolichopodidae, Diaphorinae). ZooKeys 772: 141-151. https://doi.org/10.3897/zookeys.772.25406

Figures 1-6 Habitus, lateral view. 1 Argyra longicornis sp. n. Male 2 Argyra longicornis sp. n. Male Antenna 3 Argyra pingwuensis sp. n. Male 4 Argyra pingwuensis sp. n. Female 5 Argyra sichuanensis sp. n. Male 6 Argyra sichuanensis sp. n. Female. Scale bars: 1 mm.

opencc-by-4.0Mar 2017View details →

Fig. 1. Diaphorina citri surveys between April 2013 and 2016 in First records of parasitoids attacking the Asian citrus psyllid in Ecuador

Fig. 1. Diaphorina citri surveys between April 2013 and 2016. Points represent monitored areas in Guayas province, Ecuador. The lower box represents where the province is located.

opencc-by-4.0Dec 2021View details →

Figura 2 in Insecticidas de bajo impacto ambiental para el control de Diaphorina citri Kuwayama, 1908 (Hemiptera: Liviidae) en limón mexicano (Citrus aurantifolia (Christm.) Swingle)

Figura 2. Comparación de la eficiencia de los tratamientos en las diferentes fechas de muestreo. / Comparison of the efficiency of the treatments in the different sampling dates.

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Data from: Genetic variation and structure of Diaphorina citri (Hemiptera:Liviidae) in populations from México

The Asian citrus psyllid, Diaphorina citri Kuwayama, is native to Asia but has recently invaded North America. Asian citrus psyllid is a significant pest of citrus crops by its direct feeding but, more importantly, as the vector of the bacterium 'Candidatus Liberibacter asiaticus', which causes Huanglongbing disease. Asian citrus psyllid was first found in México in 2001 and 2002 and, since then, has spread quickly across the country, suggesting rapid adaptation to new environments. Yet, we lack information on the genetic variation and structure that could facilitate or inhibit adaptation. Using six microsatellite markers, we analyzed genetic variation and structure among six localities in México: three in western states near the Pacific coast and two in the Yucatán Peninsula near the Gulf of México. We found low genetic diversity (no more than three alleles per locus) and intermediate differentiation between all populations. Asian citrus psyllid populations clustered into two genetic groups, but, surprisingly, these clusters were present in western populations. The first group included El Arenal, and the second group included Autlán de Navarro, Colima, and Tecomán. Interestingly, both of the Yucatán populations shared variation from the two clusters, suggesting admixture. We infer that reproductive isolation, barriers to gene flow, local selection, and the possibility of multiple invasions have influenced the current genetic structure of Asian citrus psyllid in México.

opencc-zeroDec 2018View details →

opennotspecifiedMar 2012View details →

Figure 4 in Shamshevia, a new genus of long-legged flies from Namibia (Diptera: Dolichopodidae: Diaphorinae)

Figure 4. Shamshevia hoanibensis Grichanov sp. nov., antenna.