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167 results for “Predatory mites”
FIGURE 3 in Sustainable weed management and predatory mite (Acari: Phytoseiidae) dynamics in Tunisian citrus orchards
FIGURE 3: Mean Phytoseiidae densities per date (a) per citrus leaf, (b) per weed quadrat and (c) per trap for the four weeding modalities in the experimental site 1.
FIGURES 1–5 in A new species of Neoseiulus Hughes, with records of seven species of predatory mites associated with date palm in Saudi Arabia (Acari: Phytoseiidae)
FIGURES 1–5. Neoseiulus saudiensis Negm, Alatawi & Aldryhim n. sp. Female, 1. idiosoma dorsum, 2. idiosoma venter, 3. spermatheca, 4. chelicera, 5. genu, tibia and basitarsus IV.
Northward range expansion of rooting ungulates decreases detritivore and predatory mite abundances in boreal forests
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Data from: Prey exploitation and dispersal strategies vary among natural populations of a predatory mite
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Data from: A tiny cuckoo: risk-dependent interspecific brood parasitism in a predatory mite
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FIGURE 11 in New species of predatory mites (Acari: Prostigmata: Cunaxidae) for southern Brazil
FIGURE 11. Lupaeus waldumirus sp. nov., female. A. Leg I; B. Leg II; C. Leg III; D. Leg IV.
FIGURE 9 in New species of predatory mites (Acari: Prostigmata: Cunaxidae) for southern Brazil
FIGURE 9. Lupaeus waldumirus sp. nov., female. (A) Dorsal and (B) ventral view of the idiosoma.
FIGURE 6 in New species of predatory mites (Acari: Prostigmata: Cunaxidae) for southern Brazil
FIGURE 6. Cunaxoides lajeadensis sp. nov., male. A. Leg I; B. Leg II; C. Leg III; D. Leg IV.
FIGURE 4 in New species of predatory mites (Acari: Prostigmata: Cunaxidae) for southern Brazil
FIGURE 4. Cunaxoides lajeadensis sp. nov., female. A. Leg I; B. Leg II; C. Leg III; D. Leg IV.
Figure 7 in Some new species records of the predatory mite family Phytoseiidae (Acari: Mesostigmata) from The Netherlands
Figure 7. Proprioseiopsis cf. umidus Karg (Female): (A) Idiosoma, dorsal view; (B) Idiosoma, ventral view; (C) Spermatheca; (D) Leg IV.
Fig. 3 in Efficiency Against The Two-Spotted Spider Mite Tetranychus Urticae And Prey-Age-Related Choice Of Three Predatory Mites
Fig. 3. Number of juvenile spider mites surviving in the presence of predatory mites at different predator densities. Light grey boxes represent treatments with low predator densities, dark grey boxes represent treatments with high predator densities. Boxes show the median and the 25–75 percentiles; dashed lines indicate the range
Fig. 2 in Efficiency Against The Two-Spotted Spider Mite Tetranychus Urticae And Prey-Age-Related Choice Of Three Predatory Mites
Fig. 2. Number of spider mite eggs surviving in the presence of predatory mites at different predator densities. Light grey boxes represent treatments with low predator densities, dark grey boxes represent treatments with high predator densities. Boxes show the median and the 25–75 percentiles; dashed lines indicate the range
Dataset: Local management and landscape composition affect predatory mites in European wine-growing regions
<p>Data repository of the raw data for the data analysis of the article: "Local management and landscape composition affect predatory mites in European wine-growing regions" published in Agriculture, Ecosystems and Environment Volume 344, 1 March 2023, 108292.</p>
Figure 4 Age-specific predation rate k in Quality control of the predatory mite Euseius scutalis (Acari: Phytoseiidae) againstTetranychus turkestani (Acari: Tetranychidae) over 30 generations of rearing on cattail pollen
Figure 4 Age-specific predation rate k (x), age-specific net predation rate q (x) and cumulative predation rate (Cx) of Euseius scutalis fedTetranychus turkestani before (G0) and after (G10 –G30) long-term rearing on cattail pollen.
Predation test results and dynamics between three species of soil-dwelling predatory mites and early stages of maize pest.
<p>PREDATORY MITES</p> <p> The three species used in this experiment were stored in climatic chambers at 25°C +/- 0,5°C and 70% +/- 10 RH% with constant obscurity. A mix of <em>Aleuroglyphus ovatus</em> stages was used as food and extra water was provided three times a week in a 100 mm x 94 mm bugdorm-5002 with 30µm nylon screen port sold by Bugdorm©.</p> <p><em>Macrocheles robustulus</em></p> <p> Koppert Biological systems provided <em>Macrocheles robustulus</em>. Their product is called Macro-mite©. We maintained them on vermiculite for 2 months with a mix of <em>A. ovatus</em> stages.</p> <p><em>Gaeolaelaps aculeifer</em></p> <p><em> </em><em>Gaeolaelaps aculeifer</em> is produced by EWH Bioproduction, Denmark. The population was maintained during 8 months on a substrate made of 1/3 third blond sphagnum peat and 2/3 of fine vermiculite and fed with a mix of <em>A. ovatus</em> stages.</p> <p><em>Stratiolaelaps scimitus</em></p> <p> <em>Stratiolaelaps scimitus</em> individuals used in this experiment are produced by Bioline AgroSciences. The product is called Hypoline©. This population has been maintained on blond sphagnum peat and fed with a mix of <em>A. ovatus</em> stages for 2 years.</p> <p>PREYS</p> <p> We experimented eggs and first instar larvae for both <em>Diabrotica virgifera virgifera</em> and <em>Agriotes sordidus </em>as potential prey. We also added <em>Aleuroglyphus ovatus</em> eggs as a positive control of predation activity since astigmatid mites are known to be a suitable food source for those species (Rueda-Ramirez et al. 2018).</p> <p><em>Diabrotica virgifera virgifera</em> eggs</p> <p> WCR diapausing eggs were provided by the Centre of Agriculture and Bioscience International (CABI), Hungary. They were stored at 7°C +/- 0,5°C below their temperature of development (Meinke et al. 2009). We sieved the eggs from their substrate and selected only turgescent eggs to offer them to the predatory mites.</p> <p><em>Diabrotica virgifera virgifera</em> first instar larvae</p> <p> We placed WCR eggs on the plaster of Paris in a climatic chamber at 25°C +/- 0,5°C and 70% +/- 10 RH%. We added water twice a week to keep the plaster of Paris moist. We checked daily if eggs hatched and introduced the first instar larvae in the predation device.</p> <p><em>Agriotes sordidus</em> eggs</p> <p> Arvalis provided <em>Agriotes sordidus</em> eggs and first instar larvae by sending us a couple of adults ready to lay eggs in Petri dishes filled with a sample of soil where they have been collected. Both eggs and first instar larvae have been extracted from this dirt.</p> <p><em>Aleuroglyphus ovatus</em> eggs</p> <p><em> </em><em>A. ovatus</em> eggs are produced by Bioline AgroSciences. Eggs were sterilized before presentation to the predatory mites.</p> <p><em>Ephestia kuehniella </em>eggs<br> </p> <p><em> E. kuehniella </em>eggs are produced by Bioline Agrosciences. Eggs were sterilized before presentation to the predatory mites.</p> <p> PREDATION DEVICE</p> <p> Predation tests have been inspired by El Adouzi, Bonato, et Roy 2017; Lovis et al. 2011 and Nordenfors et Hoglund 2000 protocols by isolating each mite individually. However, we chose to carry out the predation tests in 2 mL Eppendorf tubes containing each 1 mL of dried plaster of Paris to maintain a high percentage of humidity necessary to soil-dwelling predatory mites survival (El Adouzi, Bonato, et Roy 2017). Adult mites of both sexes were individually isolated and starved for 7 days in the tubes before the predation tests. In total, 240 predatory mites have been isolated with 1/3 of each species to present them to 4 different types of prey. Twenty predation tests were made by prey/predator couple. <br> During the 7-days period of starvation, we added 100µL of water every 3 days to maintain a suitable relative humidity necessary for soil-dwelling predatory mites survival. We also drilled the top of the tube and covered it with a 106 µm mesh width nylon tissue. This size of mesh allowed for water and gas exchange while preventing mites from leaving the tube. These tubes were stored in a climatic chamber at 25°C +/- 0,5°C with 70% +/- 10% RH. All three species were active after this period of storage and starvation.</p> <p> We introduced 20 times one prey in a tube containing a predatory mite and observed predation activity during a maximum of 10 minutes or less if predation happens before that timing. We observed each mite feeding or non-feeding activity through the tube with a binocular. We used an indirect source of light, controlled at 100 lux (measured with the Digital Illuminance meter TES 1335), to minimize natural behavior disruption of these lucifugous species. During each assay, the timing and number of contacts between the predator and the prey before predation were noted. We considered predation activity when mites impaled the prey with their chelicerae. We chose to observe predation on a short duration because some of the prey could be impacted by plaster of Paris abrasive texture if it dries up.</p>
Figure 2 in Effects of soil core handling, transport and storage on numbers and body sizes of edaphic predatory mites (Gamasina)
Figure 2. Effects of improper core treatment on the body size distribution of predatory mites (Gamasida) extracted from soil samples. Numbers in panel heads are body sizes in micrometers [Mm]. See Fig. 1 for plot labels.
Figure 1 in Effects of soil core handling, transport and storage on numbers and body sizes of edaphic predatory mites (Gamasina)
Figure 1. Effects of improper core treatment on the total abundance of predatory mites (Gamasida) extracted from soil. (A) storage duration, (B) storage temperature, (C) shaking intensity, (D) sample compression, (E) filling of sample containers in extraction apparatus, (F) combination of compression and prolonged storage, and (G) combination of shaking and prolonged storage.
Figure 1 in Suitability of different pollen grains and Tetranychus urticae as food for the predatory mite, Amblyseius swirskii (Acari: Phytoseiidae)
Figure 1. Age-stage-specific survival rate (sxj) of Ambluseius swirskii fed on Tetranychus urticae and seven different plant pollen grains.
Figure 1 in Communities of predatory mites (Phytoseiidae and Stigmaeidae) in different environments of the Brazilian Pampa
Figure 1 Bipartite network of mite and host plant species. Bars on the left side represent host plant species and bars on the right side represent mite species; green bars represent Grassland; yellow bars represent Grazing Exclusions; red bars represent Riparian Forest; grey bars represent Stigmaeidae and black bars represent Phytoseiidae.
Figure 2 in Communities of predatory mites (Phytoseiidae and Stigmaeidae) in different environments of the Brazilian Pampa
Figure 2 Ordination (NMDS) of mites. ○: Grassland, ●: Grazing Exclusions: + Riparian Forest. The low stress value (=0.06) indicates good fit of the twodimensional representation of the distances between samplings.
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