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1.
Braz. j. biol ; 84: e253469, 2024. tab, graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1364522

RESUMO

Agriculture sector of Saudi Arabia is growing swiftly and tomato is an important crop cultivated mostly under green houses. Unfortunately, it is facing severe infestation due to divers mite species. Present study, relates to evaluation of toxicity of oxamyl against two phytophagous mites; Aculops lycopersici and Tetranychus urticae, isolated from tomato plants suffering from infestation. Simultaneous effect of oxamyl on two predatory mites; Neosiulus cucumeris and Euseius scutalis, was also evaluated. Three concentrations of oxamyl; half of the recommended dose (HRD), recommended dose (RD) and double recommended dose (DRD), were used against each mite specie to observe mortality within seven days as compared to the control. Significant mortality of 97.91% and 93.92% was observed in A. lycopersici and T. urticae, respectively at RD. In case of predatory mites; N. cucumeris and E. scutalis, mortality was 60.61% and 64.48%, respectively, under same conditions. Mortality of mites observed at HRD was insignificant and there was negligible increase in mortality at DRD. Oxamyl being less toxic to predatory mites and significantly mortal to phytophagous mites is recommended as a tool to as a tool to achieve biological control parallel to pesticidal effect.


O setor agrícola da Arábia Saudita está crescendo rapidamente e o tomate é uma cultura importante cultivada principalmente em estufas. Infelizmente, está enfrentando uma infestação severa devido a diversas espécies de ácaros. O presente estudo refere-se à avaliação da toxicidade do oxamil contra dois ácaros fitófagos; Aculops lycopersici e Tetranychus urticae, isolados de tomateiros infestados. Efeito simultâneo de oxamil em dois ácaros predadores; Neosiulus cucumeris e Euseius scutalis, também foi avaliado. Três concentrações de oxamil; metade da dose recomendada (HRD), dose recomendada (RD) e dose dupla recomendada (DRD), foram usados ​​contra cada espécie de ácaro para observar a mortalidade em sete dias em comparação com o controle. Mortalidade significativa de 97,91% e 93,92% foi observada em A. lycopersici e T. urticae, respectivamente no RD. No caso de ácaros predadores; N. cucumeris e E. scutalis, a mortalidade foi de 60,61% e 64,48%, respectivamente, nas mesmas condições. A mortalidade de ácaros observada no HRD foi insignificante e houve um aumento insignificante na mortalidade no DRD. Oxamil sendo menos tóxico para ácaros predadores e significativamente mortal para ácaros fitófagos é recomendado como ferramenta para alcançar o controle biológico paralelo ao efeito pesticida.


Assuntos
Animais , Controle Biológico de Vetores , Lycopersicon esculentum , Agricultura , Ácaros , Arábia Saudita
2.
Biomed Res Int ; 2022: 8125585, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36193327

RESUMO

Arthropods can be either large or too small to be seen from the microscope. Their legs are jointed and perform a specific function in the soil. Several arthropods have been identified to date. Therefore, it is essential to identify them in a different type of soil. An experiment to quantify the soil arthropods in the urban forests of D.G. Khan was conducted at the Zoology lab of Ghazi University on four tree plants, i.e., neem (Azadirachta indica), mango (Mangifera indica), guava (Psidium guajava), and phalsa (Grewia asiatica). Soil samples were taken from different areas and on different months. The diversity of arthropods was analyzed through the Shannon index. The results were all significant. The total number of arthropods found in the experiment was 5151, with the following distributions: millipedes were 132 in neem, 133 in guava, 113 in mango, and 121 in phalsa; centipedes were 136 in neem, 142 in guava, 118 in mango, and 132 in phalsa; springtails were 138 in neem, 130 in guava, 120 in mango, and 134 in phalsa. There were a total of 12 different species of arthropods found. Neem (Azadirachta indica) have mites, centipede, and ants; guava (Psidium guajava) have centipedes and ants. Mango (Mangifera indica) have millipedes, centipedes, mites, springtail, and ants, and phalsa (Grewia asiatica) have mites, ants, and centipedes. The study reveals that millipedes, centipedes, springtails, and ants were found abundantly in the urban forest area of D.G. Khan, resulting in increased organic matter decomposition and appropriate distribution of nutrients through the soil having beneficial effects on the terrestrial ecosystem.


Assuntos
Artrópodes , Azadirachta , Mangifera , Ácaros , Psidium , Animais , Ecossistema , Florestas , Humanos , Solo , Árvores
4.
Zootaxa ; 5133(4): 585-593, 2022 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-36101080

RESUMO

During a survey on heterostigmatic mites (Acari: Prostigmata) associated with insects, a new species, Imparipes (Imparipes) hajiqanbari sp. nov. (Heterostigmata: Scutacaridae) is described and illustrated based on female individuals associated with ants of Lasius sp. (Hymenoptera: Formicidae) collected from Hyrcanian forests, Gorgan, Northern Iran. Moreover, I. (I.) obsoletus Rack, 1966 and I. (I.) histricinus Berlese, 1903 are recorded from Iran for the first time. We further provide an overview of Iranian Imparipes mites associated with hymenopterans as well as their host range.


Assuntos
Formigas , Ácaros , Animais , Feminino , Irã (Geográfico)
5.
Zootaxa ; 5133(4): 567-576, 2022 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-36101082

RESUMO

Laelaspis loeckii Duarte Moreira sp. nov. is described based on the morphology of adult females and males collected from soil in a survey carried out in southern Brazil, in the temperate Pampa biome. This is the first species of this genus described from this country. A key to the species that have so far been reported from the Western Hemisphere is provided.


Assuntos
Ácaros , Estruturas Animais/anatomia & histologia , Animais , Brasil , Ecossistema , Feminino , Masculino , Solo
6.
Zootaxa ; 5133(4): 486-508, 2022 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-36101087

RESUMO

This paper reports on six species of the genus Cosmolaelaps (Laelapidae) in Russia: Cosmolaelaps lutegiensis (Shcherbak) collected from soil-litter, C. chianensis (Gu) and C. rectangularis Sheals, 1962 from Myrmica sp. (Formicidae), and Cosmolaelaps lasiophilus Joharchi sp. nov., Cosmolaelaps latisetis Joharchi sp. nov., and Cosmolaelaps sejongi Keum et al. from Lasius spp. (Formicidae). Two new species are described and illustrated from adult females and supplementary descriptions of three other species are presented to facilitate species delimitation. In addition, an identification key to all known Russian species of the genus is presented.


Assuntos
Formigas , Ácaros , Estruturas Animais , Animais , Feminino , Federação Russa , Solo
7.
Zootaxa ; 5133(2): 279-292, 2022 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-36101098

RESUMO

The genus Calepitrimerus (Acari: Eriophyoidea) comprise more than 90 extant species. Most species infest angiosperms, while only five were reported from gymnosperms. Herein, we describe and illustrate three new species of the genus Calepitrimerus from China: two from angiosperms, C. huayanlingense sp. nov. on Ficus erecta (Moraceae), C. cryptocaryaer sp. nov. on Cryptocarya concinna (Lauraceae), and one from a gymnosperm, C. liuanense sp. nov. on Cryptomeria japonica (Cupressaceae). All new species were found vagrant on lower surfaces of their hosts leaves, albeit inducing no apparent symptom. A list of Calepitrimerus species in China is tabulated.


Assuntos
Magnoliopsida , Ácaros , Traqueófitas , Animais , China , Cycadopsida , Folhas de Planta
8.
Zootaxa ; 5133(2): 226-240, 2022 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-36101102

RESUMO

Three new species of Pergalumna (Pergalumna) (Oribatida, Galumnidae)P. (P.) dedzaensis sp. nov., P. (P.) paratsavoensis sp. nov. and P. (P.) parafrater sp. nov.are described from sifting litter of highland forests in Central and Southern Malawi. An identification key to known species/subspecies of the genus from the Afrotropical region is presented.


Assuntos
Ácaros , Animais , Florestas , Malaui
9.
Zootaxa ; 5168(1): 24-38, 2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-36101303

RESUMO

The present taxonomic study was carried out with material collected in the Michoacn state, Mexico, during one year of sampling. Ten new records of oribatid mites are reported for Mexico. Also, a new species, Gustavia mexicana sp. nov., is described, which differs from Gustavia fusifer (Koch, 1841), G. transylvanica Mahunka, 2006, G. latolamellata Hammer, 1977 and G. magnifica Golosova et Karppinen, 1984 by the absence of setal alveolus c, shape of sensillum, size and shape of rostrum, shape of lamella and presence of sejugal suture, respectively. A detailed description, schemes and photographs of the new species and an identification key for the species of the genus are provided.


Assuntos
Ácaros , Animais , México
11.
Zootaxa ; 5150(3): 357-380, 2022 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-36095657

RESUMO

Laboratory rearing of two mite species, Erythraeus (Zaracarus) budapestensis Fain Ripka, 1998 collected in Turkey and E. (Z.) rupestris (Linnaeus, 1758) sampled in Germany, allowed establishing the correspondence of their larval and postlarval instars. Erythraeus (Z.) iranicus Saboori Akrami, 2001 syn. nov. is considered a new subjective junior synonym of E. (Z.) budapestensis. Erythraeus (Z.) eleonorae Haitlinger, 1987 syn. nov. and E. (Z.) didonae Haitlinger, 2000 syn. nov. are synonymized with E. (Z.) rupestris. Data on the life history, parasitic associations and habitats are provided, and the status of currently recognized subgenera of Erythraeus is discussed.


Assuntos
Ácaros , Animais , Ecossistema , Laboratórios , Larva
12.
Zootaxa ; 5182(3): 201-237, 2022 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-36095689

RESUMO

A rapid roving survey was done in the East Sikkim district of the state Sikkim with a target to explore phytoseiid fauna of the region. Nine species of phytoseiid mites namely Amblyseius lanceae sp. nov.; Amblyseiulella cancellatus sp. nov.; Amblyseiulella gangtokiensis sp. nov.; Euseius tubuliferus sp. nov.; Okiseius pahari sp. nov.; Paraamblyseius ranipoolensis sp. nov.; Phytoseius ferrum sp. nov.; Typhlodromus (Anthoseius) himaliniae sp. nov. Typhlodromus (Anthoseius) kanchanjanghai sp. nov. are described with proper illustrations in the present paper.


Assuntos
Ácaros , Animais , Índia , Siquim
13.
14.
Zootaxa ; 5141(4): 301-320, 2022 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-36095786

RESUMO

A compilation of halacarid mite species (Halacaridae) from India has been carried out based on published records. Indian halacarid records were mostly found among algal habitats, some are also reported associated with pneumatophores and halophytes. Copidognathus is the most dominant genus with 19 species reported from the Indian coast. Reports of halacarid mites from Indian interstitial habitats are mostly doubtful and needs verification. Acarochelopodia delamarei, Copidognathus fabricii, Scaptognathus hallezi, Simognathus minutus should be excluded from Indian record. The real diversity and distribution of Indian halacarid fauna is far from being complete and future investigations may reveal further new taxa.


Assuntos
Ácaros , Animais , Ecossistema , Índia
15.
Zootaxa ; 5138(5): 501-532, 2022 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-36095821

RESUMO

Rice agroecosystems are inhabited by a number of Steneotarsonemus species worldwide with various host plant relationships and taxonomic identities. To clarify this situation, a large-scale survey was initiated in rice growing belts of eastern India and this revealed the presence of four species of Steneotarsonemus viz. S. furcatus, S. konoi, S. spinki and S. subfurcatus. However, only S. spinki and S. subfurcatus were found infesting rice while the other species were found associated with a number of graminaceous weeds. We found three intraspecific variants within the population of S. spinki which are differentially distributed in nine separate locations covering four states across eastern India. A new subgenus Linzhangia is proposed for inclusion of exceptionally unique S. subfurcatus possessing setaceous v2 on prodorsum of female. Additionally, the population of S. spinki and S. subfurcatus were found to be differentially distributed across five different agroclimatic zones of West Bengal with S. spinki being the dominant species.


Assuntos
Ácaros , Oryza , Animais , Índia , Plantas Daninhas
16.
Zootaxa ; 5178(3): 229-240, 2022 Aug 26.
Artigo em Inglês | MEDLINE | ID: mdl-36095733

RESUMO

Six species of Parholaspidid mites were collected from Guilan province in Northern Iran. Gamasholaspis browningi (Bregetova Koroleva, 1960) is a new record for the Iranian Parholaspidid mite fauna. This paper provides a checklist for Parholaspidid mites species recorded from Iran, with a key for identification of the species.


Assuntos
Ácaros , Animais , Irã (Geográfico)
17.
Zootaxa ; 5138(4): 464-480, 2022 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-36095824

RESUMO

This study provides additional morphological information and new illustrations for three species of Ololaelaps Berlese described by Bregetova Koroleva (1964) from RussiaO. caucasicus, O. sellnicki and O. ussuriensisto supplement the original descriptions. Since holotypes for these three species were not designated, a lectotype is chosen from among the syntypes of each examined species. We describe the adult male and female of Ololaelaps altaiensis Joharchi sp. nov., from specimens collected from moss on the shore of the Teletskoye Lake, in Altai Mountains, Russia. The new species is distinguished from other Ololaelaps species by its short peritremes, ending near the middle of coxae II. The new species also has elongate paradactyli, extending well beyond the pretarsal claws; this feature appears to be correlated with the species semiaquatic habitat, and such correlation between tarsal morphology and ecology occurs in other species of Ololaelaps and of Gaeolaelaps with similar habitats.


Assuntos
Briófitas , Ácaros , Animais , Ecossistema , Feminino , Lagos , Masculino , Federação Russa
18.
J Evol Biol ; 35(10): 1387-1395, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36117406

RESUMO

Major hypotheses on sex evolution predict that resource abundance and heterogeneity should either select for or against sexual reproduction. However, seldom have these predictions been explicitly tested in the field. Here, we investigated this question using soil oribatid mites, a diverse and abundant group of soil arthropods whose local communities can be dominated by either sexual or asexual species. First, we refined theoretical predictions by addressing how the effects of resource abundance, heterogeneity and abiotic conditions could modify each other. Then, we estimated the strength of selection for sexual species in local communities while controlling for phylogeny and neutral processes (ecological drift and dispersal), and tested its relation to resource and abiotic gradients. We show that sexual species tended to be favoured with increasing litter amount, a measure of basal resource abundance. Further, there was some evidence that this response occurred mainly under higher tree species richness, a measure of basal resource heterogeneity. This response to resources is unlikely to reflect niche partitioning between reproductive modes, as sexual and asexual species overlapped in trophic niche according to a comparative analysis using literature data on stable isotope ratios. Rather, these findings are consistent with the hypothesis that sex facilitates adaptation by breaking unfavourable genetic associations, an advantage that should increase with effective population size when many loci are under selection and, thus, with resource abundance.


Assuntos
Fome , Ácaros , Animais , Ácaros/genética , Filogenia , Reprodução , Reprodução Assexuada , Solo
19.
Poult Sci ; 101(10): 102099, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36055030

RESUMO

Mite infestations in laying hens can cause losses to producers due to stress, reduced egg production and even death of birds. A new species of mite, Allopsoroptoides galli (A. galli), Analgoidea: Psoroptoididae, was recently identified in commercial laying farms in Brazil, causing damage due to its highly aggressive infestation that results in a sharp drop in egg production and culling. The present study evaluated the acaricidal action of a formulation containing fluralaner (Exzolt) against A. galli. Thirty-four laying hens naturally infested with A. galli were equally divided into a fluralaner-treated group and an untreated control group. The fluralaner-treated group received Exzolt in drinking water at a dose of 0.05 mL/kg body weight (equivalent to 0.5 mg fluralaner/kg body weight), twice, 7 d apart. Both groups were followed for 70 d evaluating the level of infestation by counting mites in skin scrapings and assessment of skin lesions. The average mite count of the treated group decreased significantly, dropping from 61.6 to 3.8 mites (D+7 to D+70). The efficacy progressively increased on subsequent days, reaching 98.8% on d +56 post-treatment and 96.9% on d +70. Recovery of skin lesions was observed after administration of Exzolt, showing a marked remission in the degree of lesions (2.5 on d -14 to 0.2 on d +70). The mean number of mites in the untreated control group ranged from 79.3 to 124.1 and the lesion score from 2.6 to 2.9, thus remaining stable throughout the study. The results obtained in the present study demonstrated that Exzolt administered at a dose of 0.05 mL of product/kg body weight (equivalent to 0.5 mg of fluralaner/kg body weight), twice at a 7-d interval, in drinking water was effective in the treatment of the mite Allopsoroptoides galli in naturally infested laying hens.


Assuntos
Água Potável , Infestações por Ácaros , Ácaros , Doenças das Aves Domésticas , Animais , Peso Corporal , Galinhas , Feminino , Isoxazóis , Infestações por Ácaros/tratamento farmacológico , Infestações por Ácaros/veterinária , Doenças das Aves Domésticas/tratamento farmacológico
20.
Turkiye Parazitol Derg ; 46(3): 219-223, 2022 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-36094124

RESUMO

Objective: This study aimed to determine whether ocular Demodex colonization leads to changes in the conjunctival flora in healthy middle-aged individuals. Methods: This study included 70 patients who applied to an ophthalmology clinic with a complaints of presbyopia. Two eyelash specimens from the lower eyelids of both eyes were obtained from each individual. In eyelash specimens were examined for Demodex spp. by direct wet smearing under microscopy. Conjunctival culture samples were cultivated on blood agar, eosin methylene blue and chocolate agar. Results: In the 38.5% of the individuals, Demodex spp. mites were found in the eyelashes, out of which 11.4% were Demodex brevis and 27.1% Demodex folliculorum. Bacterial growth was observed in 82.9% of the samples examined. The most frequently detected bacterium was Staphylococcus epidermidis (57%). Conclusion: Although Demodex spp. infestation has been shown to be related to diseases on ocular surface of eyes such as pterygium, xerophthalmia and chalazion, we did not observe that it induces changes in ocular surface flora in healthy adults.


Assuntos
Blefarite , Pestanas , Infestações por Ácaros , Ácaros , Adulto , Ágar , Animais , Humanos , Pessoa de Meia-Idade , Infestações por Ácaros/epidemiologia
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