Brígida Souza

Brígida Souza
Universidade Federal de Lavras (UFLA) | UFLA · Departamento de Entomologia

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147
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Publications

Publications (147)
Article
Knowledge about the development and bioecology of red-banded thrips, Selenothrips rubrocinctus (Giard, 1901) (Thysanoptera: Thripidae), is scarce. In this work, we tested the hypothesis that the development of S. rubrocinctus is affected by the rose cultivar in which it grows. The biological characteristics of this thrips in two rose cultivars were...
Book
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Esta cartilha tem o objetivo de apresentar de forma acessível a importância das hortas familiares, algumas técnicas de controle de pragas e a importância ecológica das formigas nestes espaços.
Article
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The mealybugs Planococcus minor (Maskell) and Planococcus citri (Risso) (Hemiptera: Pseudococcidae) are cryptic species to be morphologically similar and share common hosts. However, some host preference has been observed. In addition to preference, evidence showed that host plants could affect the reproductive traits of mealybugs. Although there a...
Article
The mealybugs Planococcus minor (Maskell) and Planococcus citri (Risso) (Hemiptera: Pseudococcidae) are cryptic species to be morphologically similar and share common hosts. However, some host preference has been observed. In addition to preference, evidence showed that host plants could affect the reproductive traits of mealybugs. Although there a...
Article
Background: Whether tactics to manipulate natural enemies in agro-ecosystems enhance their ecosystem function and services remains debatable. We conducted field experiments in 2015-2016 to test the hypothesis that attraction of natural enemies to herbivore-induced plant volatiles (HIPVs), alone or in combination with companion plants, increases cr...
Article
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Most studies regarding ant–aphid interactions focus only on the direct effects of ants on tended aphids and aphidophagous predators, or the indirect effects on the host plant. Studies evaluating the effects of aphid-tending ants on more than one trophic level are rare and evaluate only the presence or absence of such effects. Here we assessed the e...
Article
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A reprodução da cochonilha-branca Planococcus citri tem sido relatada como biparental e partenogenética facultativa ou exclusivamente biparental. Entretanto, a ocorrência da partenogênese facultativa pode ser um atributo das populações locais e, assim, as diferenças geográficas serem determinantes na reprodução desses insetos. Desta forma, objetivo...
Article
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Methyl salicylate (MeSA) is a commonly emitted herbivore-induced plant volatile (HIPV) known to attract insect predators in agricultural crops. However, thorough studies on whether MeSA can increase their ecological functioning or their attraction under field conditions are still lacking. Here, we conducted laboratory, greenhouse, and field studies...
Article
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Cassidinae Gyllenhaal is the second largest subfamily of Chrysomelidae (Coleoptera), which presents characteristic morphology, biology and behaviour. The current study describes the life cycle of Paraselenis(Spaetiechoma) dichroa (Germar), determining biological and behavioural aspects as well as the action of natural enemies on populations, when t...
Article
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Ant-aphid interactions may affect host plants in several ways, however, most studies measure only the amount of fruit and seed produced, and do not test seed viability. Therefore, the aim of this study was to assess the effects of the presence of ant-aphid interactions upon host plant productivity and seed viability in two different contexts: isola...
Data
Bean plant seed germination rates. Bean plant seed germination rate, mean per block (ten seed/block), from three treatments: Control—caged plants without ant-aphid interaction, and exclusion of all the arthropods from the plant; Community–cageless plants with free access to the entire arthropod community; and Ant free community–plants with ant excl...
Data
Occurrence of aphid-tending ant species in each week sampled. Aphid-tending ants were actively sampled from treatments: Community and Ant-aphid totalizing 50 sampled beans plants (Phaseolus vulgaris). A–Occurrence of ant species in Ant-aphid treatment; and B–Occurrence of ant species in Community treatment. (DOCX)
Article
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The reproduction of the citrus mealybug, Planococcus citri (Hemiptera: Pseudococcidae) has been reported as biparental with facultative parthenogenesis or exclusively biparental. Parthenogenesis may be an attribute of local populations, thus geographic variations could be determinant for the type of reproduction. Therefore, this work aimed to incre...
Article
The selection of appropriate flowering plants as sources of pollen and nectar for beneficial insect predators and parasitoids is essential in maintaining conservation biocontrol in agroecosystems. The objectives of the present work were: (i) to evaluate the capacity of Chrysoperla externa (Hagen) adults to feed on pollen of three different Apiaceou...
Article
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Differences in susceptibility to viruses in plants may be partially explained by the insect vector probing behavior and by the presence of phenolic compounds, which are often associated with defense strategies. This study aimed at detecting barriers that may difficult the probing activity of the Dysmicoccus brevipes (Pseudococcidae) pineapple mealy...
Article
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Chrysoperla externa (Neuroptera: Chrysopidae) eggs are attached to the oviposition substrate by long silk stalks. The complete removal of these stalks is crucial for efficient egg release in biological control programs. The present study aimed at establishing an appropriate oviposition substrate and determining the best embryonic stage for submissi...
Article
We tested three artificial diets for rearing larvae of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae), aiming at reducing the production costs of this predator. Two of the diets come from studies with other species of lacewings, and the third is a modification described in this paper. All diets were based on animal protein and were supplied...
Article
The objectives of this study was to assess the efficiency of third instar larvae of Chrysoperla externa and to quantify its population control on different densities of Macrosiphum euphorbiae aphids on greenhouse rose crops. For 24 hours, the consumption of C. externa on first and second stage nymphs of M. euphorbiae at a predator: prey ratio of 1:...
Article
Full-text available
The objectives of this study was to assess the efficiency of third instar larvae of Chrysoperla externa and to quantify its population control on different densities of Macrosiphum euphorbiae aphids on greenhouse rose crops. For 24 hours, the consumption of C. externa on first and second stage nymphs of M. euphorbiae at a predator: prey ratio of 1:...
Article
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This note extends the geographical distribution of two rare species of Mantispidae (Neuroptera) in Minas Gerais state, Brazil. This is the first record of Gerstaeckerella irrorata and the second record of Plega zikani for the state.
Article
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The mealybugs Planococcus citri and Planococcus minor (Hemiptera: Pseudococcidae) have increased their importance in brazilian coffee and cause similar damage to plants. Our objective was to determine the characteristics related to the development of these species, testing the hypothesis that, despite of considered cryptic, they have different biol...
Article
Report of the first record of occurrence of Argentoleon irrigatus in the state of Minas Gerais, from three specimens collected in the Mata do Baú, municipality of Barroso, MG, Brazil. Thus, knowledge of the geographic distribution of this species of Myrmeleontidae in Brazil is increased. © 2015, Sociedad Colombiana de Entomologia. All rights reserv...
Article
Ichneumonidae (Hymenoptera) is one of the largest families of Insecta, but information on family diversity and distribution in Brazil is limited. The aim of the study was to assess the abundance, richness and seasonal distribution of Ichneumonidae in an urban secondary semideciduous montane forest. Insect specimens were captured in a Malaise trap p...
Article
Chrysoperla externa (Neuroptera: Chrysopidae) is one of the natural enemies of the corn leaf aphid Rhopalosiphum maidis (Hemiptera: Aphididae) and has potential application in the biological control of that pest. The effect of’ temperature on the development and the predatory capacity of this chrysopid fed with R. maidis nymphs was investigated. Fr...
Article
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O presente estudo relata, pela primeira vez, a ocorrência de Hemerobius gaitoi Monserrat, 1996 e Hemerobius hernandezi Monserrat, 1996 (Neuroptera: Hemerobiidae) para o estado de Minas Gerais, Brasil.
Article
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Espécies de Apiaceae dispõem de óleos essenciais, nos quais podem ocorrer compostos voláteis, que funcionam como sinais para atração e manutenção de inimigos naturais nas áreas cultivadas. Com base nestas características, este trabalho objetivou avaliar a atratividade aos adultos do predador Chrysoperla externa. Foram utilizados folhas e caules de...
Article
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The objective of this study was to evaluate the parasitoids of horticultural insect pests associated with Apiaceae plants: coriander, dill and fennel. The experiment was conducted in a randomized complete block design with four replications and three treatments. Collections were carried out weekly, beating the plants on white plastic trays. Parasit...
Conference Paper
Natural enemy behavior is mediated by cues associated with the host-plant complex, such as volatiles emitted by damaged plants, and the surrounding vegetation. In this study, we investigated: a) under greenhouse conditions, green lacewing, Chrysoperla externa, adult attraction and oviposition on rose, Rosa sp., damaged by the potato aphid, Macrosip...
Article
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Os insetos predadores da família Chrysopidae têm sido relatados tanto em ecossistemas naturais como nos agroecossistemas, sejam eles cultivos consorciados ou monocultivos. Porém, são escassas as informações sobre o comportamento das populações desses insetos nos agroecossistemas diversificados, como aqueles de base agroecológica. O presente trabalh...
Article
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The release of lacewings eggs in the field requires the removal of their silk stalk, otherwise the release is impaired, as the eggs can become entangled in these pedicels. This study evaluated the effect of three concentrations of chlorine solution associated with two different exposure times for removing the stalks of eggs of Chrysoperla genanigra...
Article
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Collections of natural enemies of Bemisia tabaci biotype B (Genn.) (Hemiptera: Aleyrodidae) were made in Lavras, state of Minas Gerais, Brazil. In the greenhouse, 6,495 predators and 16,628 parasitoids belonging to three families were collected. In the field, 267 predators and 344 parasitoids belonging to five families were found. For the first tim...
Article
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A survey of odonatofauna was carried out in Mata do Baú, a predominantly forested area in Barroso, Minas Gerais, regarded as a priority area for conservation and scientific investigation, as published by Biodiversitas, a Brazilian nongovernmental institution. Sample collection was conducted over twenty-six days from November 2009 to February 2011....
Article
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The community of orchid bees (Hymenoptera: Apidae: Euglossina) was studied at an area in the transition between the Cerrado and Atlantic Forest biomes, from March, 2010 to February, 2011 in the Barroso region, state of Minas Gerais, eastern Brazil. Orchid-bee males were collected with bait traps containing three different scents (cineole, eugenol a...
Article
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Storage of predators' eggs at low temperatures is a technique used to detain embryonic development in order to accumulate the required amount of eggs for sale. The establishment of the optimal storage period will ensure quality of the product purchased by consumers, which has great importance in quality control on the production process. This study...
Article
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We evaluated biological and reproductive aspects of Chrysoperla externa fed with the aphid Neotoxoptera formosana reared on Welsh onion (Allium fstulosum). The experiment was conducted at a temperature of 25 ± 1 °C, RH 70 ± 10% and photophase of 12 hours, with 40 repetitions of one individual for the larval period. For the adults, nine pairs were u...
Article
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O estudo de genótipos de feijoeiro resistentes à mosca-branca Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) éde grande importância devido aos danos ocasionados por essa praga à cultura. Neste trabalho, foram estudados a atratividadepara adultos, a preferência para oviposição em testes com e sem chance de escolha, o ciclo ovo-adulto e o...
Article
O objetivo deste trabalho foi detectar uma possível especificidade alimentar de duas espécies crípticas de cochonilhas do gênero Planococcus, refletida em seu desenvolvimento em frutos de cacaueiro, cafeeiro e citros. A cochonilha Planococcus minor (Maskell), obtida de frutos de cacau (Theobroma cacao L. cv. Comum), e Planococcus citri (Risso), de...
Article
Full-text available
The aim of this study was to investigate a possible host specificity of two cryptic species of mealybugs of the genus Planococcus, reflected in its development in fruits of cocoa, coffee and citrus. The mealybugs Planococcus minor were obtained from cocoa fruits (Theobroma cacao L. cv. Comum) and citrus mealybug, Planococcus citri, from coffee seed...
Article
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Espécies vegetais da família Apiaceae podem proporcionar recursos vitais para insetos predadores de pragas agrícolas, promovendo sua eficiência como agentes de controle biológico devido à oferta de recursos como sítios de refúgio, proteção e alimentação. Assim, o objetivo deste trabalho foi avaliar a atração de insetos predadores pelas apiáceas coe...
Article
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The study of bean genotypes resistant to the whitefly Bemisia tabaci (Genn.) B biotype (Hemiptera: Aleyrodidae) has been of great importance due to the damage caused by this pest. In this research, bean genotypes were evaluated regarding attractiveness to whitefly adults, the preference for oviposition in free-choice and non choice tests, egg-to-ad...
Article
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RESUMO Este trabalho teve por objetivo estudar o desenvolvimento de populações de cochonilhas do gênero Planococcusem diferentes espécies vegetais, visando à verificação de especificidade hospedeira. A cochonilha Planococcus minorfoi obtida de plantas de cacau (Theobroma cacaoL.) e de café (Coffea canephoraPierre), enquanto Planococcus citrifoi obt...
Article
It was aimed to study biological and behavior aspects of larvae and adults of Chrysoperla externa in greenhouse, on cotton plants. Recently hatched larvae were released on the upper third of cotton plants, which were previously infested with Aphis gossypii,. After emergence, adults were separated by sex and packed in cylindrical PVC recipients with...
Article
Full-text available
Life table studies of insect pests in different temperatures aid in comprehension on the population dynamics of these organisms. In this study, fertility and life expectancy tables were built for the green peach aphid Myzus persicae reared on pepper Capsicum annuum under different thermal conditions. In laboratory, the study was carried out at 15,...
Article
Full-text available
In order to study the interactions of green lacewings toxocenosis on natural ecossystems, samplings were carried out in the Parque Ecológico Quedas do Rio Bonito, located in Lavras, Alto Rio Grande region, South of Minas Gerais, Brazil. The species inventory was accomplished in two vegetation types: semi-evergreen forest and open field formations,...
Article
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This paper examines some biological aspects and the predatory capacity of Chrysoperla externa fed nymphs of Sipha flava and reared at different temperatures. Recently hatched larvae were placed individually in Petri dishes, fed ad libitum with S. flava and reared at either 12, 16, 20, 24, 28 or 32 ± 1°C, a RH of 70 ± 10% and a 12-h photophase. The...
Article
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This work aimed to evaluate the effect of genotypes of elephant grass, Pennisetum purpureum Schum, on some biological aspects of Sipha flava (Forbes). Foliar disks of 15 elephant grass genotypes were used, on which individual nymphs up to 12 hours old were placed in dishes and kept at 25 ºC, RH of 70 ± 10% and 12-hour photophase. We evaluated the n...
Article
Full-text available
It was aimed to study biological and behavior aspects of larvae and adults of Chrysoperla externa in greenhouse, on cotton plants. Recently hatched larvae were released on the upper third of cotton plants, which were previously infested with Aphis gossypii,. After emergence, adults were separated by sex and packed in cylindrical PVC recipients with...
Article
Full-text available
This work aimed to evaluate the effect of genotypes of elephant grass, Pennisetum purpureum Schum, on some biological aspects of Sipha flava (Forbes). Foliar disks of 15 elephant grass genotypes were used, on which individual nymphs up to 12 hours old were placed in dishes and kept at 25°C, RH of 70 ± 10% and 12-hour photophase. We evaluated the nu...
Article
Full-text available
The objective of this study was to estimate the life expectancy and fertility tables of Sipha flava (Forbes, 1884) fed with elephant grass at different temperatures. The investigations were conducted in climate controlled chambers at 12, 16, 20, 24, 28 and 32ºC, UR 70 ± 10% and 12-hour photophase, with 150 insects at each temperature. There was gra...
Article
Full-text available
The aim of this study was to verify the viability of exclusive use of elephant grass pollen, Pennisetum purpureum (Schum), to feed larvae of the lacewing Chrysoperla externa (Hagen, 1861). The insects were kept at 24ºC and the duration and survival rate of each instar and the larval and pupal phases were recorded. The diet provided complete develop...
Article
RESUMO Objetivou-se avaliar o benefício do mel e do pólen proveniente de duas espécies de forrageiras, sobre os aspectos biológicos da fase adulta de Chrysoperla externa (Hagen, 1861). Casais do predador foram individualizados em gaiolas cilíndricas de PVC (10 x 10 cm) mantidas em câmaras climatizadas a 25 ± 1º C, 70% UR e fotofase de 12 horas. Uti...
Article
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O afídeo Sipha flava (Forbes) ocasiona injúrias em capim-elefante e sua biologia é pouco conhecida. O objetivo deste trabalho foi avaliar o efeito da temperatura no desenvolvimento, sobrevivência e reprodução de S. flava alimentada com Pennisetum purpureum. Ninfas com até 12h de idade foram individualizadas sobre seções foliares de capim-elefante e...
Article
The aphid Sipha flava (Forbes) is a pest on elephant grass, but little is known about its biology. The objective of this work was to evaluate the temperature effects on the development, survival and reproduction of S. flava fed on Pennisetum purpureum. Twelve-hour-old nymphs were individualized on sections of elephant grass blades and maintained at...
Article
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A cochonilha Planococcus citri (Risso, 1813) suga a seiva dos botões florais e frutos do cafeeiro, atacando as rosetas desde a floração até a colheita. Embora seja relatada há alguns anos na cafeicultura, são escassas as informações sobre o desenvolvimento dessacochonilha em cafeeiros. Assim, o presente trabalho teve por objetivos avaliar alguns as...
Article
Full-text available
The citrus-growing ecosystem houses a great deal of species of natural enemies, among them Chrysoperla externa (Hagen, 1861), which presents a great potential for use in the biological control of pests. The aim of this work was to evaluate the effects of the preys Planococcus citri (Risso, 1813) and Toxoptera citricida (Kirkaldy, 1907) on the devel...
Article
The citrus-growing ecosystem houses a great deal of species of natural enemies, among them Chrysoperla externa (Hagen, 1861), which presents a great potential for use in the biological control of pests. The aim of this work was to evaluate the effects of the preys Planococcus citri (Risso, 1813) and Toxoptera citricida (Kirkaldy, 1907) on the devel...
Article
RESUMO A ocorrência da mosca-branca Bemisia tabaci (Genn.) biótipo B (Hemiptera: Aleyrodidae) foi registrada pela primeira vez em mudas de Eucalyptus camaldulensis Dehn. em Lavras, Estado de Minas Gerais. O ataque foi observado no dia 16/1/2007 em 30 mudas de E. camaldulensis mantidas em casa-de-vegetação. As plantas infestadas apresentavam-se amar...
Article
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The cucurbitaceous plants are always on demand in world market and one of the main pests on these crop is the aphid Aphis gossypii. This work aimed to study the biological aspects of A. gossypii on the Caserta (Cucurbita pepo L.) cultivar in different temperatures. To determine the biological aspects of A. gossypii, nymphs were kept on leaf disks (...
Article
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RESUMO Neste estudo objetivou-se verificar a composição da comunidade de crisopídeos (Neuroptera: Chrysopidae) em 15 fragmentos de floresta estacional semidecídua da região do Alto Rio Grande, sul do Estado de Minas Gerais, Brasil, assim como o efeito do tamanho e complexidade da forma desses fragmentos sobre a riqueza, abundância e diversidade das...
Article
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Avaliou-se alguns aspectos biológicos e a capacidade predatória em três temperaturas de larvas de Ceraeochrysa cubana (Hagen) alimentadas com ninfas de terceiro e quarto ínstares de Aphis gossypii Glover. Os experimentos foram conduzidos em câmaras climáticas a 22; 25 e 28±1ºC, 70±10% de UR e fotofase de 12 horas. O delineamento experimental foi in...
Article
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The efficiency of Chrysoperla externa first instar larvae in the control of Myzus persicae in sweet pepper was evaluated in experiments conducted in climatic chamber and room at 25 ± 1ºC, 70 ± 10% RH and 12h photophase. C. externa newly emerged larvae were released in sweet pepper foliar discs containing 5; 10 or 20 aphid nymphs, putted in Petri di...
Article
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Some biological aspects and the predatory capacity at three temperatures of larvae of Ceraeochrysa cubana (Hagen) fed third and fourth instar nymphs of Aphis gossypii Glover were evaluated. The experiments were conducted in climatic chambers at 22; 25 and 28±1 o C, 70±10% of RH and 12-hour photophase. The experimental design was completely randomiz...