Bioecological aspects of mites associated with Vitis vinifera varieties in the state of Rio Grande Do Sul, Brazil

2020 ◽  
Vol 25 (9) ◽  
pp. 1618-1642
Author(s):  
Rita Tatiane Leão Da Silva ◽  
Vinicius Leão Da Silva ◽  
Darliane Evangelho Silva ◽  
Joseane Moreira Do Nascimento ◽  
Matheus Schüssler ◽  
...  

Viticulture is an activity of economic importance in the state of Rio Grande do Sul, especially in Serra Gaúcha, which is the major grape-producing region. However, an increase in cultivated areas has been observed in other municipalities in the state. The aim of this study is to characterize mite diversity and community behavior on different varieties, recognizing which predatory species have potential to control phytophagous mites associated with Europan varieties in the Taquari Valley, Rio Grande do Sul state. The study was conducted in vineyards located in the municipalities of Marques de Souza: ‘BRS Vitória’ and cv ‘Itália’ “m”; Imigrante: cv ‘Itália’ “i”; Dois Lajeados: cv ‘Itália’ (c and f), ‘Tannat’ and ‘Chardonnay’; and Putinga: ‘Champanhe’ and ‘Moscato’. Samplings were carried out monthly in the period ranging from March 2017 to March 2018, during which twenty plants were randomly collected from each variety. Three leaves were clipped from each plant; one from the apical third, one from the median third, and one from the basal third, totaling 60 leaves per area. A total of 10,533 specimens were collected, belonging to 12 families, 38 genera, and 53 species, along with those belonging to the suborder Oribatida. The ‘Itália’ “c” variety had the highest abundance (2,012), followed by ‘Moscato’ (1,788) and ‘BRS Vitória’ (1,593). Phytoseiidae had the highest diversity among the mite families observed, with 20 species followed by Tetranychidae (8). The most abundant species were Polyphagotarsonemus latus (Banks) (3,420) and Euseius concordis (Chant) (565), present throughout the study period. ‘Chardonnay’ variety had the highest similarity (72.55%) among mite fauna compositions and the highest dissimilarity occurred between ‘BRS Vitória’ and ‘Champanhe’ varieties (95.48%). Environments evaluated in Dois Lajeados and Putinga were the most homogeneous concerning mite fauna diversity and abundance.

Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 522 ◽  
Author(s):  
Crisna Letícia Klock ◽  
Marcos Botton ◽  
Noeli Juarez Ferla

The mitefauna associated to Merlot and Chardonnay grapevine cultivars and associated plants in the municipalities of Bento Gonçalves and Candiota, Rio Grande do Sul was investigated. The study was developed between October 2006 and September 2007, where 20 grapevine plants were randomly chosen from each municipality and monthly sampled. Three leaves of each plant were taken. A total of 11,598 mites belonging to 14 families and to 52 species were found. Fifty-nine percent of the total specimens were collected in Candiota, being 93% associated to the Merlot cultivar. Higher species richness was observed on associated plants. Phytoseiidae showed the highest species richness, with ten species, and Eriophyidae showed the highest abundance, with 8,675 specimens. Calepitrimerus vitis (Nalepa, 1905) and Polyphagotarsonemus latus (Banks, 1904) were the most common phytophagous mites, while Neoseiulus californicus (McGregor, 1954) and Pronematus anconai (Baker ,1943) were the most common predators.


2017 ◽  
Vol 39 (2) ◽  
pp. 341
Author(s):  
Abraão Martins Terceiro

The work deals with the theme artisanal fisheries and has as main objective, the characterization of the activity in the municipalities of Tramandaí and Imbé, located in the State of Rio Grande do Sul, the spatial distribution and the challenges to occur fisheries in this region. The research is justified by the large number of fishermen in the study area and the economic importance of the activity, mapping through popular knowledge areas of greatest value for fishing, the main existing species and the main features and instruments used in fish capture.


2011 ◽  
Vol 11 (3) ◽  
pp. 413-415
Author(s):  
Geraldo Salgado-Neto

Xanthozona melanopyga (Wiedmann, 1830) (Diptera: Tachinidae) is recorded here as a parasitoid of Brassolis astyra Godart, 1824 (Lepidoptera: Nymphalidae). Dipteran endoparasitoids have been recorded as pupal endoparasitoids of Brassolis sophorae (L.), due to the scientific and economic importance of these interespecific relationships, and aiming to increase the knowledge on natural and conservative biological control, I hereby record Xanthozona melanopyga (Wiedmann) as larval-pupal parasitoid of Brassolis astyra Godart for the State of Rio Grande do Sul, Brazil. For the first time.


Zootaxa ◽  
2011 ◽  
Vol 2976 (1) ◽  
pp. 15 ◽  
Author(s):  
NOELI JUAREZ FERLA ◽  
LIANA JOHANN ◽  
CRISNA KLOCK ◽  
FERNANDA MAJOLO ◽  
MARCOS BOTTON

In this paper we report on the phytoseiid mites associated with grapevine in the state of Rio Grande do Sul, Brazil, which may be natural enemies of the pest mites Calepitrimerus vitis, Colomerus vitis (Eriophyidae), Panonychus ulmi (Tetranychidae) and Polyphagotarsonemus latus (Tarsonemidae). A total of 1,538 phytoseiid mites belonging to 30 species was found. Neoseiulus californicus showed the highest abundance with 844 specimens, followed by Euseius inouei, with 274 specimens. The majority of mites (83%) were observed on vine plants and 17% on the uncultivated plants. Of the 30 species found, 22 were observed on vine plants, 15 on the uncultivated plants and 10 species on both types of plants. When the phytoseiid species were collected in both places, on vine and on the associated plants, greater populations were found on vine plants.


2020 ◽  
Vol 50 (2) ◽  
Author(s):  
Adriane da Fonseca Duarte ◽  
Grazielle Furtado Moreira ◽  
Uemerson Silva da Cunha ◽  
Paulo Ricardo Ebert Siqueira ◽  
Gilberto José de Moraes

ABSTRACT: The diversity of edaphic mites in Brazilian natural environments is little known, especially in the Pampa biome, in southern region of Brazil. The objective of this study was to evaluate the diversity and abundance of edaphic fauna of mesostigmatid mites in a region of the Pampa biome of the state of Rio Grande do Sul. Soil samples were collected in the municipality of Aceguá, in 2012 and 2013. Mites were extracted using Berlese-Tullgren modified funnels. In total, 1900 mesostigmatid mites were collected, representing 44 species from 23 genera and 10 families. The most abundant families were Rhodacaridae, Ologamasidae and Laelapidae, with respectively 903, 578 and 214 specimens, corresponding respectively to 47.5, 30.4 and 11.3% of the Mesostigmata collected. Laelapidae was the most diverse family, being represented by 22 species. The remaining families were each represented by 1-5 species. Gaeolaelaps (Laelapidae) was the most diverse genus, with 14 species. Rhodacaridae was represented by a single species, Binodacarus aceguaensis Duarte, Castilho, Cunha & Moraes, representing 47.5% of the mesostigmatids. Ologamasidae was represented by four species, with Neogamasellevans sp. corresponding to the second most abundant species, representing 27.5% of the mesostigmatids. Further analysis of the data, in terms of mite identification to species level and the potential use of the mites collected for applied biological control are needed.


Redes ◽  
2016 ◽  
Vol 22 (1) ◽  
pp. 556
Author(s):  
Fernanda Queiroz Sperotto

Resumo O estudo examinou o fenômeno da especialização produtiva em atividades industriais de alto potencial poluidor-APP. Os objetivos da análise foram (a) avaliar, a partir de dados secundários, a importância atual das indústrias de APP para a economia do RS; e (b) mapear no território gaúcho essas indústrias, a fim de observar a concentração espacial dessas atividades. Para tanto, analisou-se dados de emprego, estabelecimentos, produção e exportação das atividades industriais de APP, no período de 2007 e 2014. Embora os resultados não tenham indicado mudanças substanciais ao longo desses oito anos, foi possível estabelecer um panorama do setor industrial de APP gaúcho, o qual servirá de base para pesquisas futuras sobre a formação de paraísos de poluição no RS. Abstract The study analyzed the phenomenon of productive specialization in industrial activities of high pollution potential-HPP. The objectives of the analysis were (a) to evaluate, from secondary data, the current importance of HPP industries for the State Rio Grande do Sul (RS/Brazil); and (b) to map in the territory these industries and to observe the spatial concentration of these activities. Therefore, it was analyzed employment data, establishments, production and export of industrial HPP activities, in the period 2007 and 2014. Although the results did not indicate substantial changes over these eight years, it was possible to establish an overview of the industry HPP in RS, which will form the basis for future research on the formation of pollution havens in RS.


2013 ◽  
Vol 35 (84) ◽  
Author(s):  
Geraldo Salgado-Neto

The species Cotesia alius (Muesebeck, 1958) (Hymenoptera: Braconidae: Microgastrinae) is a larvae parasitoid of Opsiphanes invirae amplificatus Stichel (1904) (Lepidoptera: Nymphalidae). Hymenopteran parasitoids larvae and pupae are recorded acting as defoliators of palm. Concerning the scientific and economic importance of these interespecific relationship, and aiming to increase the knowledge to natural and conservative biological control, the present study records in the State of Rio Grande do Sul State, Brazil, some data on the biology of this C. alius as larval parasitoid of O. invirae amplificatus Stichel (1904). Based on 35 postures were recorded 4581 cocoons. On 16 postures (48%) observed all cocoons were open and empty, indicating that all parasitoids emerged (Normal). In the 19 remaining postures (52%) (Altered), 134 cocoons (6%) were closed with C. alius intacts in six postures (40%) (Intacts) or remains (fragments) (44%), and in Eulophidae intact within three postures (16%). These data can be used in mass rearing of parasitoids, and biological control of defoliator’s palm.


2021 ◽  
Vol 3 ◽  
pp. ec03023
Author(s):  
Rita T. L. Da Silva ◽  
Amália L. W. Berté ◽  
Gabriel L. Bizarro ◽  
Angelica Sulzbach ◽  
Vinicius L. Da Silva ◽  
...  

The South of Brazil is the largest producer of grapes, however this production is affected by climate and herbivores such as phytophagous mites. The aim of this work was to associate the mite fauna with the grape cultivars Chardonnay, BRS Lorena and hybrid cultivars rootstock Paulsen 1103, in trellising and espalier systems, in the municipalities of Bento Gonçalves and Garibaldi, Rio Grande do Sul State, Brazil. The cultivars were: Chardonnay trellis (Cl) Chardonnay espalier (Ce), BRS Lorena trellis (Ll), BRS Lorena espalier (Le) and the hybrid cultivars Paulsen rootstock 1103 (Pa). Monthly samplings were carried out from November 2016 to April 2017. Twenty plants per area were randomly sampled, from each plant three apical leaves were collected, apical, median and basal branches (60 leaves / area). In total, 6,865 mites belonging to seven families, 13 genera and 22 species were collected. The most abundant phytophagous belong to Tarsonemidae and Tenuipalpidae, the predators to Phytoseiidae and the generalists to Tydeidae and Iolinidae. The cultivars Lorena Ll was the greatest similarity (82.39%) among species mites, followed by Paulsen Pa (72.54%), Lorena Le (70.67%), Chardonnay Cl (31.79%) and Chardonnay Ce (31.48%). The highest dissimilarity among the cultivars occurred between Chardonnay Ce and Lorena Le (66.49%), followed by Chardonnay Ce, Chardonnay Cl (66.44%), Chardonnay Ce and Lorena Ll (61.49 %). Thus, there is homogeneity between the sampled cultivars and the conduction systems and the apical third of the leaves and the sampling period are important in determining the composition of the species.


Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
Mariana Juventina Magrini ◽  
Paula Beatriz Araujo ◽  
Marcio Uehara-Prado

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.


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