Geraldo Andrade Carvalho

Universidade Federal de Lavras

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Mára Zeni

Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul

Patrícia Risson

Universidade de Caxias do Sul

S. L. Vieira

Universidade Federal da Paraíba

Ademir J. Zattera

Universidade de Caxias do Sul

Dejane Santos Alves

Universidade Tecnológica Federal do Paraná

César Freire Carvalho

Universidade Federal de Lavras

Denilson F. Oliveira

Universidade Federal de Lavras

Valéria Fonseca Moscardini

Dow Chemical (Brasil)

Luiz Carlos Dias Rocha

Instituto Federal do Sul de Minas

Luis Clepf Passos

University of Catania

Cooperative Institutions

Universidade Federal de Lavras

218

Universidade de São Paulo

Universidade Federal de Viçosa

Brazilian Agricultural Research Corporation

Universidade Estadual Paulista (Unesp)

Empresa de Pesquisa Agropecuária de Minas Gerais

Universidade Tecnológica Federal do Paraná

Universidade Federal de Minas Gerais

National Council for Scientific and Technological Development

Universidade Estadual do Oeste do Paraná

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Association between the occurrence of mound-building termite in pasture with physical, chemical and biological characteristics of the soil

Research Society and Development (2022)

Gustavo Queiroga Bento Paulo Henrique de Siqueira Sabino Gian Otávio Alves da Silva Ligiane Aparecida Florentino Adauton Vilela de Rezende

The occurrence of mound-building termite Cornitermes cumulans (Kollar, 1832) (Termitidae) in pastures may be related to the chemical, physical and biological characteristics of the soil. However, little is known about these relationships. The objective of this study was to evaluate the relationship of the occurrence of mound-building termite in pasture with the chemical, physical and biological characteristics of the soil. The number of mounds and their circumference (cm) and height (m) were evaluated in three subareas present in the same pasture area. Soil chemical, physical and biological analyses were performed. Soil acidity and texture do not interfere with the occurrence of mound-building termites in the pasture. The lower CO2 release in the soil contributes to a greater occurrence of mound-building termites and greater mound circumference. Therefore, it is important to improve the soil conditions in order to increase its biological activity and, consequently, to allow the development of microorganisms which reduce the development of mounds.

Termitidae

10.33448/rsd-v11i8.30877

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Seletividade fisiológica de inseticidas em duas espécies de crisopídeos

Pesquisa Agropecuária Brasileira (2010)

Maurício Sekiguchi de Godoy Geraldo Andrade Carvalho Beatriz Ferreira Carvalho Olinto Lasmar

O objetivo deste trabalho foi avaliar a seletividade de inseticidas recentemente lançados no mercado para o controle de pragas na cultura dos citros, em adultos de Chrysoperla externa e Ceraeochrysa cubana. Os produtos utilizados e as respectivas dosagens em g L-1 de i.a. foram: tiametoxam 200 WG, 0,05; imidacloprido 700 WG, 0,07; milbemectina 50 CE, 0,008; piriproxifem 100 CE, 0,075; e espirodiclofeno 240 SC, 0,06. Em cada tratamento, 11 casais de C. externa e 13 de C. cubana, com idade de até 24 horas, foram submetidos à aplicação dos inseticidas e de água (testemunha), por meio de torre de Potter. A mortalidade dos adultos, a capacidade de oviposição num período de oito semanas e a viabilidade dos ovos foram avaliadas. O tiametoxam foi classificado como nocivo a C. externa; o imidacloprido como moderadamente nocivo e os demais inseticidas como inócuos. Para C. cubana, o tiametoxam foi considerado nocivo, o espirodiclofeno foi levemente nocivo e os demais produtos foram inócuos. Os produtos milbemectina, piriproxifem e espirodiclofeno podem ser recomendados em programas de manejo integrado de pragas visando à manutenção dessas espécies de artrópodes benéficos em áreas de citricultura.

10.1590/s0100-204x2010001100004

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Citations (21)

Toxicidade de acaricidas a ovos e adultos de Ceraeochrysa cubana (Hagen, 1861) (Neuroptera: Chrysopidae)

Ciência e Agrotecnologia (2011)

Geraldo Andrade Carvalho César Freire Carvalho Márcio do Nascimento Ferreira

Objetivou-se, neste trabalho, avaliar o efeito de treze acaricidas sobre ovos e adultos de Ceraeochrysa cubana (Hagen, 1861). Os acaricidas foram pulverizados por meio de torre de Potter, nas concentrações recomendadas para o controle de ácaros na cultura dos citros. Os ensaios foram conduzidos sob condições controladas de 25 ± 2º C, umidade relativa de 70 ± 10% e fotofase de 12 horas. Os acaricidas não foram tóxicos ao predador em sua fase de ovo. Em relação aos adultos, o carbosulfan e o triazophos foram altamente tóxicos (100% de mortalidade), enquanto que os piretróides bifenthrin e fenpropathrin causaram mortalidade aproximadamente de 60%. Os acaricidas dicofol, bromopropylate, tetradifon, clofentezine, abamectin, hexythiazox, cyhexatin e óxido de fenbutatin não provocaram mortalidade dos adultos de C. cubana. Flufenoxuron inibiu a capacidade de oviposição e provocou a inviabilização dos ovos. Baseando-se na escala da IOBC, os acaricidas carbosulfan, triazophos e flufenoxuron foram enquadrados na classe 4 = nocivos; bifenthrin e fenpropathrin na classe 2 = levemente nocivos, e dicofol, bromopropylate, tetradifon, clofentezine, abamectin, hexythiazox, cyhexatin e óxido de fenbutatin na classe 1 = inócuos a C. cubana. Os compostos enquadrados na classe 1 podem ser recomendados em programas de manejo integrado de pragas de citros objetivando a integração entre os métodos químico e biológico por meio dessa espécie de predador.

Dicofol

Abamectin

Bifenthrin

10.1590/s1413-70542011000100021

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Citations (16)

Physiological and Ecological Selectivity of Pesticides for Natural Enemies of Insects

Springer eBooks (2019)

Geraldo Andrade Carvalho Anderson Dionei Grützmacher Luis Clepf Passos Rodrigo Lopes de Oliveira

Beneficial insects

10.1007/978-3-030-24733-1_37

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Citations (30)

Morphology of the male and female reproductive tracts of virgin and mated Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae)

Microscopy Research and Technique (2020)

Priscylla Costa Dantas Helen Cristina Pinto Santos Hakan Bozdoğan José Éduardo Serrão Geraldo Andrade Carvalho

Abstract Predatory insects have reproductive organs rich in complex changes that may be responsible for the success of their population growth. The species Chrysoperla externa is a predator used in biological control programs in Latin America. However, there is no morphological data about the morphology of the reproductive tract in this insect. This study describes the morphology of the reproductive organs of virgin and mated C . externa male and female. The male has a pair of testes yellow in color and five pairs of accessory glands closely associated with the seminal vesicles. The testis follicles are twisted filled with cysts in different developmental stages. The pair of ovaries in the females shows asymmetry with 9–11 ovarioles per ovary with oocytes in different developmental stages and a spherical spermatheca. Virgin and mated males have no differences in the size of the testes, seminal vesicle, and accessory glands. C . externa females show morphological changes in the reproductive tract according to sexual maturation, which is triggered by mating. The ovary activation occurs after female mating. The ovaries are of merotistic polytrophic type. The spermathecal reservoir is lined by a flattened epithelium with a thin cuticular intima and associated with well‐developed muscles. It is concluded that the reproductive tract of C . externa is similar in virgin and mated males and females. Egg production is activated only after mating and the development of reproductive tract structures is faster in mated females.

Spermatheca

Reproductive system

Female reproductive system

Morphology

10.1002/jemt.23645

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Citations (3)

Espécies, número e frequência de visitantes florais em culturas agrícolas submetidas à aplicação de produtos fitossanitários

Arquivos do Instituto Biológico (2015)

Fernanda Fonseca e Silva Geraldo Andrade Carvalho

Produtos fitossanitários podem influenciar de maneira negativa a atratividade ou o comportamento de visitantes florais. Dessa forma, o presente trabalho teve como objetivo avaliar a influência desses produtos na diversidade de espécies e frequência de visitação floral nas culturas do pimentão e do tomateiro após a aplicação de produtos fitossanitários. Os produtos aplicados foram ciantraniliprole, ciantraniliprole + tiametoxam, tiametoxam, imidacloprido, ciantraniliprole + abamectina e diafentiurom. Os ensaios foram realizados em campo no período de junho a novembro de 2012. Foram avaliados o número total de espécies e o número de visitas de visitantes florais no período de 26 de junho de 2012 a 11 de setembro de 2012 para a cultura do tomateiro e de 25 de setembro de 2012 a 13 de novembro de 2012 para a cultura do pimentão. Para o cultivo do tomateiro, foi encontrado um total de 8 espécies de visitantes florais; para a cultura do pimentão, foram verificadas 27 espécies. Os produtos fitossanitários aplicados tanto na cultura do tomateiro quanto na do pimentão não reduziram o número de visitantes florais nem a frequência de visitação dos insetos, demonstrando seletividade ecológica.

10.1590/1808-1657000712013

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Citations (1)

USB TIPO C C para Suporte Adaptador Conversor HDMI 4Kof polyester resin

Patrícia Risson Geraldo Andrade Carvalho S. L. Vieira Mára Zeni Ademir J. Zattera

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Trypsin Inhibitor of Ricinus communis L. (Euphorbiaceae) in the Control of Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae)

Agronomy (2024)

Vinicius O. Ramos Dejane Santos Alves Geraldo Andrade Carvalho Custódio Donizete dos Santos Alberto José Cavalheiro

The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is a polyphagous insect of various agricultural crops. The methods used for its control have led to the selection of resistant insect populations, which justifies the search for new alternatives for the management of this insect. Accordingly, in the present study, trypsin inhibitors present in the leaf extract of Ricinus communis (Euphorbiaceae) were investigated for their activity against S. frugiperda. Chemometric optimization methods were developed for the extraction, purification, identification, and structural characterization of the inhibitors. In addition, the effect of R. communis extract on S. frugiperda development was evaluated. Inhibitor extraction was chemometrically optimized, yielding an extract with an antitryptic activity of 94,837.14 mUIT g−1. The R. communis extract was purified and found to contain two compounds (adenosine and ricinine) exhibiting trypsin inhibitor activity. However, after purification, only ricinine inhibited S. frugiperda trypsin in vitro (103.21 mUIT mg−1). The extract was added to the diet of S. frugiperda larvae, resulting in reduced digestion, increased protein in the feces (control = 12,571 μg protein/mg feces; 1818.2 g mL−1 = 16,867 μg protein/mg feces), and insect mortality. At the highest concentration, the treatment led to an LT50 of 15.9 days and a cumulative survival rate of 18.5%. Based on the results of this study, it is possible that ricinine binds to the catalytic site of trypsin, causing the mortality of S. frugiperda larvae.

Euphorbiaceae

10.3390/agronomy14102222

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The Compared Efficiency of the Traditional Method, Radiography without Contrast and Radiography with Contrast in the Determination of Infestation by Weevil (Sitophilus zeamais) in Maize Seeds

Insects (2019)

María Laene Moreira de Carvalho Eva Rezende Leite Geraldo Andrade Carvalho Fabiano França‐Silva Dayliane Bernardes de Andrade

Technologies that increase safety and efficiency, while facilitating and streamlining the work of seed analysts, are increasingly required by the seed industry. X-ray image analysis is a technique that has been used in the analysis of grain and seeds because it is fast, accurate and non-destructive. The traditional method to verify the presence of insect damage in seeds involves manual cutting of the seeds, which endangers the safety of the analyst and is time-consuming and repetitive work that leads to visual fatigue. The objective of this study was to compared the efficiency of radiographic analysis with and without contrast in the determination of infestation by Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), at different stages of development, in maize seeds, compared to the traditional method required by seed legislation, which consists of cutting and visual evaluation. Seeds were evaluated regarding the presence of eggs/oviposition signs, larvae, pupae, adult insects, insect damage in five infestation periods (5, 18, 33 and 35 days after infestation), while evaluating the total number of seeds infested, comparing the three methods. For characterization of the oviposition stage, the use of contrast was best at all times of infestation. For the larval stage, there was no difference between the evaluation methods; however, at 18 days, larger infestations were observed by the traditional method. At 5 days, the identification of pupae was better by the traditional method and radiography without contrast, while for the identification of adult insects the best method was the use of radiography without contrast. The characterization of the level of infestation with maize weevil damage was best verified using contrast radiography. Radiographic analysis is efficient in the detection of damage caused by S. zeamais in maize seeds. This method of radiographic analysis (with or without contrast) is thus an auxiliary tool to assess the damage and presence of S. zeamais in maize seeds.

Rice weevil

10.3390/insects10060156

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Citations (7)

Avaliação da toxicidade de inseticidas utilizados em roseira para adultos de <em>Orius insidiosus</em> (Say) (Hemiptera: Anthocoridae)

Acta Scientiarum Agronomy (2007)

F. Z. V. Torres Geraldo Andrade Carvalho Jander Rodrigues de Souza Luiz Carlos Dias Rocha

Predatory bugs of the genus Orius have been used as entomophagous agents in several agricultural systems, obtaining success in the control of different pests. In rose crops these bugs can be used in the control of thrips, the principal pest of this crop. This study aimed to evaluate the impact of some insecticides used in rose crops to adults of Orius insidiosus (Say), by direct spraying on the bugs and by ingesting contaminated food. Commercial formulations of the insecticides used (g a.i. 100 mL-1) were: endosulfan (0.021), formetanate (0.04), spinosad (0.0144) and deltamethrin (0.0008). Out of these, only endosulfan was evaluated as for ingestion of contaminated food test. Distilled water was used as control. The bioassays were carried out in laboratory. A Potter’s tower was used to spray the products on adults. Eggs of Anagasta kuehniella (Zeller) were dipped in the insecticide solutions and offered to the predator. The mortality, the reproduction and the predatory capacity of the survivors were evaluated. By spraying, deltamethrin was harmful to adults of O. insidiosus; spinosad was moderately harmful and endosulfan and formetanate were slightly harmful. In contaminated food tests, endosulfan was slightly harmful. The predatory capacity of O. insidiosus was not affected by endosulfan in neither of the tests.

Anthocoridae

Endosulfan

10.4025/actasciagron.v29i3.276

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Citations (2)