Aspectos biológicos de Dichelops melacanthus em três temperaturas, alimentados com grãos imaturos de milho 2B688Hx e 2B688

Bortolotto, Orcial Ceolin; Mikami, Adriana Yatie; Bueno, Adeney de Freitas; Silva, Gabriela Vieira; Queiroz, Ana Paula de

doi:10.1590/0103-8478cr20150542

Cited by 11 publications

(13 citation statements)

References 12 publications

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“…However, in the second trial there was no oviposition at all in these temperatures (Tables 3 and 4). The low oviposition as well as an unviability observed in the 21 °C, was similar to results found by Bortolotto et al (2016), whom observed that D. melacanthus reared in a temperature of 19 °C, had no fecundity nor egg viability.…”

Section: Resultssupporting

confidence: 89%

“…During the second trial, an egg viability of 63.2 and 64.6%, and female fecundity of 120.1 and 125.1, respectively, was observed. Bortolotto et al (2016) found that D. melacanthus reared at temperatures of 25 and 31 °C presented an egg viability of 79.7 and 79.4%, and female fecundity of 70.1 and 68.8 eggs, at average, respectively. Silva et al (2011) reared 50 females of D. melacanthus in a constant 26 °C, and produced averagely 136.2 eggs each.…”

Section: Resultsmentioning

confidence: 94%

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Greenbelly Stinkbug Biology in Different Temperatures

Oliveira¹,

Hoshino²,

Menezes³

et al. 2019

JAS

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The green-belly stinkbug (Dichelops melacanthus) stands out due to its damage potential towards corn and wheat crops. The population distribution and size greatly influence the potential damage. The insect’s reproductive capacity depends on different temperature conditions during various crop seasons and its lifecycle. The study aimed to evaluate the influence of different constant temperatures on the D. melacanthus biology. The study was performed twice, once in the year of 2017, and again in 2019. The biological features were observed in temperature-controlled climate chambers with the following temperatures: 11, 16, 21, 26, 31 and 36 °C, each with a fluctuation of ±1 °C, using a RH of 65±15% and photophase of 14 h. The evaluations were conducted from eggs to adults in terms of: nymphal hatch period, each instar duration, female fecundity and egg viability. There were no eggs hatching at 11 ºC and it also reached 100% mortality during the second instar at 16 °C. The eggs-to-adult duration for the temperatures 21, 26, 31 and 36 °C in the trial of 2017 was 58.4, 30.1, 18.2 and 16.3 days, respectively. In the same temperatures, but during the 2019 trial, the eggs to adult duration was 58.1; 29.7; 21.3 and 19.1 days, respectively. The reproductive capacity in the temperatures of 21 and 36 °C impaired the female fecundity and egg viability. The temperatures 26 and 31 °C favored the development of D. melacanthus.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 94%

Greenbelly Stinkbug Biology in Different Temperatures

Oliveira¹,

Hoshino²,

Menezes³

et al. 2019

JAS

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“…Sabe-se que o clima exerce grande influência sobre o comportamento de insetos-praga. Pentatomídeos fitófagos buscam temperaturas variando entre 20 e 30°C para seu melhor desenvolvimento e reprodução, com temperatura ótima em torno de 25°C a 28°C (Botta et al, 2014;Bortolotto et al, 2016). Para o ano agrícola de 2014, o município de Cruz Alta teve temperaturas médias entre 20 e 24°C durante o mês de novembro (2013) e 28 a 32°C de dezembro a fevereiro (2014), resultando em média de 20 a 24°C no mês de março (2014), correspondente ao período de cultivo da soja.…”

Section: Resultsunclassified

Densidade populacional de pentatomídeos influenciada pela estrutura morfológica de diferentes plantas no município de Cruz Alta, RS

Engel

Pasini

Hörz

2018

RCA

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Contribuição dos autores: Eduardo Engel realizou o experimento, a análise de dados, a revisão bibliográfica, a escrita científica e a apresentação dos resultados; Maurício Paulo Batistella Pasini contribuiu com a escrita científica, a análise de dados, a apresentação dos resultados e a revisão gramatical; Daniele Caroline Hörz Engel realizou o experimento, a revisão bibliográfica, a revisão ortográfica e a apresentação dos resultados. Fontes de financiamento: Não houve fonte de financiamento. Conflito de interesse: Os autores declaram não haver conflito de interesse.

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“…The green belly stink bug, Dichelops melacanthus (Dallas), is distributed throughout Brazil, especially in the agricultural producing regions between Northern Paraná and the Central West (BORTOLOTTO et al, 2016). It is believed that its occurrence is favored by the direct planting system, which offers shelter in the straw, and by the succession of soybean/corn and soybean/ wheat crops (CRUZ et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Pathogenicity and virulence of entomopathogenic nematodes against Dichelops melacanthus Dallas (Hemiptera: Pentatomidae)

Guide

Alves

Fernandes

et al. 2019

SCA

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Infestations of Dichelops melacanthus (Dallas; Hemiptera: Pentatomidae) in corn and wheat in Brazil, and the subsequent damage, have increased in recent years, mainly owing to this insect’s ability to survive the off-season. The control of this insect is mainly carried out with chemical insecticides, but the development of alternative methods, such as biological control, can contribute to a more sustainable management. Thus, the objective of this study was to evaluate the potential of entomopathogenic nematodes (EPNs) for the control of D. melacanthus. A selection test was performed with 15 isolates of genera Steinernema and Heterorhabditis regarding their pathogenicity and virulence on adults of D. melacanthus. Concentration (10, 20, 40, 50, and 100 infective juveniles (IJs)/cm2) and greenhouse tests were carried out only with the Steinernema feltiae isolate (IBCB-n 47). All experiments were conducted in a completely randomized design. The selection test data were submitted to the Scott-Knott averages test (P ? 0.05), and those from the greenhouse test to the Student's t-test. The results of the concentration assay were subjected to regression analysis. All isolates showed pathogenicity and virulence in adults of D. melacanthus. The isolates GL (Heterorhabditis amazonensis), IBCB-n27 (Steinernema sp.), and RSC05 (H. amazonensis) were the most virulent (80.0, 82.0, and 88.0% mortality, respectively). The higher concentrations of S. feltiae (50 and 100 IJs/cm²) were responsible for the highest mortality rates of green belly stink bug (88.0 and 86.0%, respectively). In the greenhouse test, S. feltiae caused higher mortality (38%) than the control.

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Aspectos biológicos de Dichelops melacanthus em três temperaturas, alimentados com grãos imaturos de milho 2B688Hx e 2B688

Cited by 11 publications

References 12 publications

Greenbelly Stinkbug Biology in Different Temperatures

Greenbelly Stinkbug Biology in Different Temperatures

Densidade populacional de pentatomídeos influenciada pela estrutura morfológica de diferentes plantas no município de Cruz Alta, RS

Pathogenicity and virulence of entomopathogenic nematodes against Dichelops melacanthus Dallas (Hemiptera: Pentatomidae)

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