Impact of cultivation systems on Dichelops melacanthus (Dallas) (Heteroptera: Pentatomidae) population and damage and its chemical control on wheat

Chocorosqui, Viviane R.; Panizzi, Antônio R.

doi:10.1590/s1519-566x2004000400014

Cited by 66 publications

(61 citation statements)

References 8 publications

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“…However, this correlation was not signi icant for D. melacanthus (R 2 = 0.1011, P = 0.1493, Fig 1a). This laboratory feeding behavior of D. melacanthus is consistent with known crop preferences for this stink bug species, as it is primarily a pest of corn and wheat, and, only occasionally, a pest of soybean (Ávila & Panizzi 1995, Chocorosqui & Panizzi 2004). …”

Section: Resultssupporting

confidence: 79%

“…Other species such as the Neotropical brown stink bug, Euschistus heros (F.), and the red-banded stink bug, Piezodorus guildinii (Westwood), are also important pests in the neotropics (Panizzi et al 2000). A fourth species, the green-belly stink bug, Dichelops melacanthus (Dallas), occasionally found on soybeans, has recently become an important pest in Brazil damaging wheat and other summer crops such as corn (Chocorosqui & Panizzi 2004, 2008.…”

Section: Introductionmentioning

confidence: 99%

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Duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (Heteroptera: Pentatomidae)

Depieri¹,

Panizzi²

2011

Neotrop. entomol.

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Laboratory studies were conducted to compare duration of feeding and super icial and in-depth damage to soybean (Glycine max) seeds by the Southern green stink bug, Nezara viridula (L.), the Neotropical brown stink bug, Euschistus heros (F.), the red-banded stink bug, Piezodorus guildinii (Westwood), and the green-belly stink bug, Dichelops melacanthus (Dallas). Results indicated that feeding time was signi icantly longer for N. viridula (≈ 133 min) compared to E. heros and D. melacanthus (≈ 70 min), but not different from P. guildinii (≈ 103 min). There was a positive correlation between feeding time and the resulting damage for E. heros, N. viridula and P. guildinii (R 2 > 0.80, P < 0.0001), but not for D. melacanthus (R 2 = 0.1011, P = 0.1493). The deepest seed damage (2.0 mm) was made by P. guildinii and the shallowest (0.5 mm) by D. melacanthus. The depth of the seed damage by E. heros and N. viridula (0.8, 1.2 mm, respectively) was intermediate in comparison to the other species studied. Feeding damage to the seed endosperm caused variable cell disruption and protein body dissolution, particularly when P. guildinii fed on seeds, suggesting that the deleterious action of salivary enzymes was greater for this bug compared to the others.

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Section: Resultssupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (Heteroptera: Pentatomidae)

Depieri¹,

Panizzi²

2011

Neotrop. entomol.

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“…No entanto, a adoção deste sistema proporciona condições favoráveis para o crescimento populacional de insetos polífagos como o percevejo-barriga-verde, Dichelops melacanthus (Dallas, 1851) (Hemiptera: Pentatomidae). Esse percevejo está amplamente distribuído nas principais regiões onde se pratica a sucessão soja-milho e é favorecido tanto pelo plantio direto, cuja palhada lhe oferece abrigo, como pela sucessão cultural soja-milho ou soja-trigo, que proporciona disponibilidade contínua de alimento ao longo do ano (Ávila & Panizzi, 1995;Chocorosqui & Panizzi, 2004;Panizzi et al, 2012;Smaniotto & Panizzi, 2015). Ao milho, D. melacanthus causa injúria cerca de três vezes mais intensa do que o percevejo-marrom, Euschistus heros (Fabricius,1798) (Hemiptera: Pentatomidae) (Roza-Gomes et al, 2011;Torres et al, 2013).…”

Section: Introductionunclassified

Tratamento de sementes para manejo do percevejo-barriga-verde na cultura de soja e milho em sucessão

Chiesa

Sismeiro

Pasini

et al. 2016

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito do tratamento de sementes com inseticidas sobre o manejo de Dichelops melacanthus e a produtividade da soja e do milho, cultivados em sucessão. O estudo foi realizado em campo, nas safras 2012/2013 (I) e 2013/2014 (II). Avaliaram-se os inseticidas imidacloprido, tiametoxam, tiodicarbe, fipronil e abamectina. Determinaram-se: a densidade populacional do percevejo, a produtividade de soja e milho, e a intensidade da injúria em milho. A densidade do percevejo permaneceu abaixo de um inseto por metro quadrado, na maior parte do ciclo da soja. Os picos populacionais foram observados nas primeiras semanas, após a emergência do milho, e atingiram 2,2 (safra I) e 6,7 (safra II) percevejos por metro quadrado. Na cultura da soja, os inseticidas não reduziram a densidade populacional do percevejo. Na cultura do milho, o imidacloprido reduziu a densidade do percevejo em 23,2% (safra I) e 38,8% (safra II), e a injúria em 61,8% (safra I) e 26,4% (safra II). O tiametoxam reduziu a densidade dos insetos em 27,8% (safra II) e a injúria em 42,7% (safra I). O tratamento de sementes com inseticidas não proporciona aumento de produtividade à soja e ao milho, portanto, não se justifica sua utilização nas condições deste estudo.Termos para indexação: Dichelops melacanthus, controle químico, flutuação populacional, manejo integrado de pragas. Seed treatment for management of the green-belly stink bug in the crop succession of soybean and cornAbstract -The objective of this work was to evaluate the effect of seed treatment with insecticides on the management of Dichelops melacanthus on the yield of soybean and corn, grown in succession. The study was carried out in a field, in the 2012/2013 (I) and 2013/2014 (II) crop seasons. The evaluated insecticides were: imidacloprid, thiamethoxam, thiodicarb, fipronil, and abamectin. The following were determined: stink bug population density, soybean and corn yield, and corn injury. Population density remained below one stink bug per square meter, in most of the soybean cycle. Population peaks were observed in the first weeks, after corn emergence, and they reached 2.2 (crop season I) and 6.7 (crop season II) stink bugs per square meter. In the soybean crop, the insecticides did not reduce the stink bug population density. In the corn crop, imidacloprid reduced the stink bug density in 23.2% (crop season I) and 38.8% (crop season II), and injury in 61.8% (crop season I) and 26.4% (crop season II). Thiamethoxam reduced the insect population density in 27.8% (crop season II) and injury in 42.7% (crop season I). Seed treatment with insecticides does not provide increase for soybean and corn yields, therefore, their use is not justified in this study's conditions.

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“…This is an insect of the Neotropics that has emerged dramatically in the past two decades in southern Brazil as a result of the adoption of no-tillage systems, as the insect uses the leftover straw as a shelter (CHOCOROSQUI; PANIZZI, 2002PANIZZI, , 2004.…”

Section: Introductionmentioning

confidence: 99%

Performance of reproductive system of Dichelops melacanthus (Hemiptera: Pentatomidae) subjected to buprofezin and pyriproxyfen: morphological analysis of ovarioles and testes

Cremonez

Pinheiro

Falleiros

et al. 2017

SCA

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The use of insecticides known as insect growth regulators, which are considered more selective to natural enemies, may be an alternative to integrated pest management of stink bugs of the main crops in Brazil. The objective of this study was to evaluate histological changes in the reproductive system of Dichelops melacanthus as well as female fecundity and egg fertility after use of growth-regulating insecticides. The insecticides used were buprofezin (a chitin biosynthesis inhibitor) at a sublethal concentration (LC 30 of 2.99 g L -1 ) and pyriproxyfen (a juvenile hormone analog) at a sublethal concentration (LC 30 of 8.35 mL L -1 ). A completely randomized experimental design was used, with 10 repetitions and 10 insects per experimental unit. Two bioassays were performed: in the first bioassay, fecundity (eggs/ female) and fertility (nymph eclosion) of the insects that survived the insecticides were evaluated; in the second bioassay, morphological alterations of the ovarioles of adult females and of the testes of adult male insects that survived the insecticides were evaluated. Buprofezin and pyriproxyfen did not affect the adult sex ratio or female fecundity. Pyriproxyfen reduced the percentage of ecloded nymphs (71.6%) compared with that of the control and buprofezin (96.4 and 90.6%, respectively) treatments and had an ovicidal effect, with direct and indirect action on embryogenesis. Morphological changes were observed in both treatments with buprofezin and pyriproxyfen. The alterations observed in female and male reproductive systems may occur by the action of buprofezin and pyriproxyfen on the morphology of both ovarioles and testes. Key words: Dose-response curve. Endocrine disruption. Green-belly stink bug. Insect growth regulators. Reproductive organ morphology. ResumoA utilização de inseticidas conhecidos como reguladores de crescimento dos insetos, considerados mais seletivos a inimigos naturais, pode ser uma alternativa no manejo integrado no que se refere ao controle de percevejos-pragas das principais culturas no Brasil. Os objetivos deste trabalho foram avaliar alterações histológicas causadas no aparelho reprodutor de Dichelops melacanthus e a fecundidade das fêmeas e fertilidade de ovos, após o uso de inseticidas reguladores de crescimento. utilizados foram buprofezina (inibidor da biossíntese de quitina), na concentração subletal CL 30 2,99 g L -1 , e o piriproxifem (análogo do hormônio juvenil) na concentração subletal CL 30 8,35 mL L -1 . O delineamento experimental foi inteiramente casualizado, com 10 repetições e 10 insetos por repetição. Foram realizados dois bioensaios: no primeiro foi avaliada a fecundidade (número de ovos/fêmea) e a fertilidade (número de ninfas eclodidas) dos insetos que sobreviveram aos produtos. No segundo bioensaio, foram avaliadas as alterações morfológicas de ovaríolos de fêmeas e testículo de machos de percevejos adultos, que sobreviveram à ação dos inseticidas. Buprofezina e piriproxifem não afetaram a razão sexual de adultos ou mesmo a fecundidade das ...

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Impact of cultivation systems on Dichelops melacanthus (Dallas) (Heteroptera: Pentatomidae) population and damage and its chemical control on wheat

Cited by 66 publications

References 8 publications

Duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (Heteroptera: Pentatomidae)

Duration of feeding and superficial and in-depth damage to soybean seed by selected species of stink bugs (Heteroptera: Pentatomidae)

Tratamento de sementes para manejo do percevejo-barriga-verde na cultura de soja e milho em sucessão

Performance of reproductive system of Dichelops melacanthus (Hemiptera: Pentatomidae) subjected to buprofezin and pyriproxyfen: morphological analysis of ovarioles and testes

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