Dichelops melacanthus and Euschistus heros injury on maize: Basis for re-evaluating stink bug thresholds for IPM decisions

Gomes, Emerson Crivelaro; Hayashida, Rafael; Bueno, Adeney de Freitas

doi:10.1016/j.cropro.2019.105050

Cited by 25 publications

(19 citation statements)

References 23 publications

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“…However, of the many species of stink bug, the Neotropical Brown Stink Bug, Euschistus heros (Fabricius) (Hemiptera: Pentatomidae) is the most frequent pest of field crops, mainly in the central region of Brazil at latitudes between 0° and 23° 6 . In addition, more recently, the Green-Belly Stink Bug, Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae), has become more abundant, increasing its significance to soybean and maize ( Zea mays ) production in the Neotropical region, especially in Brazil 7 . This increase is mostly a consequence of the adopted production system in which soybean is cropped during summer immediately followed by maize in autumn.…”

Section: Introductionmentioning

confidence: 99%

Biological characteristics of Trissolcus urichi (Crawford) (Hymenoptera: Scelionidae) on Euschistus heros (Fabricius) and Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae) Eggs

Queiroz

Bueno

Panizzi

et al. 2020

Sci Rep

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Species of the genus Trissolcus are effective as egg parasitoids of Euschistus heros and can potentially be used in a multispecies pest management approach. However, in order to successfully use those biocontrol agents in the field, previous detailed knowledge about their life history are necessary. therefore, we evaluate some biological characteristics of Trissolcus urichi on Euschistus heros and Dichelops melacanthus eggs. Three independent experiments were performed: (1) T. urichi host preference between E. heros and D. melacanthus eggs. (2) T. urichi eggs-adult period (days), number of parasitized eggs in 24 h, emergence rate (%) and sex ratio of the parasitoid in E. heros and D. melacanthus eggs. (3) Morphometric characteristics of T. urichi grown on E. heros and D. melacanthus eggs. Trissolcus urichi preferred to parasitize E. heros eggs, exhibiting a higher number of parasitized eggs, higher rate of emergence (%) and faster development, as well as producing progeny of larger size than the parasitoids emerged from eggs of D. melacanthus in relation to body length, wing length and width. thus, it can be concluded that T. urichi had better performance on E. heros eggs, although the parasitoid had also acceptable parasitism capacity and development in D. melacanthus eggs. Stink bugs are one of the most important groups of insects that cause yield losses in soybean (Glycine max) production in Brazil, Argentina and Uruguay 1. Not only have they damage soybean in South America but also in Arkansas and other states in the Mid-South of the United States 2. Because these insects feed directly on the soybean pods they seriously affect both yield and bean quality 1,3. Among the recorded stink bugs from soybean fields, there have been at least 54 different species belonging to the family Pentatomidae 4. The relative economic importance of each species might vary according to each country or its region 5. However, of the many species of stink bug, the Neotropical Brown Stink Bug, Euschistus heros (Fabricius) (Hemiptera: Pentatomidae) is the most frequent pest of field crops, mainly in the central region of Brazil at latitudes between 0° and 23°6. In addition, more recently, the Green-Belly Stink Bug, Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae), has become more abundant, increasing its significance to soybean and maize (Zea mays) production in the Neotropical region, especially in Brazil 7. This increase is mostly a consequence of the adopted production system in which soybean is cropped during summer immediately followed by maize in autumn. The resulting continuous food supply to the insects throughout the year, known as green bridge, has favored D. melacanthus outbreaks 8 .

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Section: Introductionmentioning

confidence: 99%

Biological characteristics of Trissolcus urichi (Crawford) (Hymenoptera: Scelionidae) on Euschistus heros (Fabricius) and Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae) Eggs

Queiroz

Bueno

Panizzi

et al. 2020

Sci Rep

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“…Embora outras espécies de percevejos, como o percevejo-marrom (Euschistus heros), possam incidir nas lavouras de milho, os percevejos barriga-verde Diceraeus furcatus e Diceraeus melacanthus (Figura 2B) são as espécies que causam os maiores prejuízos na fase inicial da cultura (GOMES et al, 2020). Tal fato decorre do hábito alimentar dessas espécies, que se alimentam preferencialmente no colmo (Figura 2F) e, consequentemente, atingem o ponto de crescimento (meristema apical) ou gemas laterais (futuras espigas).…”

Section: Aspectos Morfológicos E Bioecológicosunclassified

“…Embora estudos apresentem valores divergentes quanto ao impacto de percevejos na fase inicial do milho (CHIARADIA et al, 2016;GOMES et al, 2020), o nível de dano econômico (NDE) atualmente preconizado para percevejos adultos de barriga-verde na fase inicial da cultura do milho situase sempre abaixo de 0,5 percevejo/m de plantas, considerando o impacto da praga na produtividade da cultura, os valores atuais do cereal no mercado e os custos de controle da praga. Todavia, há marcantes variações na suscetibilidade dos genótipos de milho disponíveis no mercado (CROSARIOL NETTO et al, 2015;CRUZ et al, 2016), especialmente quanto à expressão da resistência do tipo tolerância.…”

Section: Danos E Período Crítico De Ocorrênciaunclassified

Subsídios para o manejo de percevejos na fase inicial da cultura do milho

Toledo

Madalóz

Ribeiro³

2021

RAC

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No sul do Brasil, os percevejos barriga-verde (Dichelops furcatus e Dichelops melacanthus) têm se constituído em pragas-chave do milho, causando expressiva redução na produtividade pelo ataque na fase inicial da cultura. Assim, neste informativo são apresentados aspectos aplicados relacionados a dinâmica de percevejos nos sistemas de produção milho-soja, características bioecológicas e comportamentais e as principais estratégias de monitoramento e manejo recomendadas para as condições de cultivo desse cereal no sul do Brasil.

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“…Among those species, the Neotropical brown stink bug Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae) is the most common and abundant species, especially in central Brazil between latitudes of 0° and 23°S (Panizzi and Corrêa-Ferreira, 1997;Bueno et al, 2015a). Recently, the green belly stink bug Diceraeus melacanthus Dallas, 1851 (Hemiptera: Pentatomidae) has also been gaining economic importance, especially in areas where soybean is succeeded by maize as a second crop (Bueno et al, 2015b;Gomes et al, 2020). This pest remains in the area after soybean harvest and attacks the sequentially grown maize, which makes it one of the most important maize pests (Smaniotto and Panizzi, 2015).…”

Section: Introductionmentioning

confidence: 99%

Trissolcus teretis (Johnson, 1987) (Hymenoptera: Scelionidae) parasitism on Euschistus heros (Fabricius, 1798) and Diceraeus melacanthus Dallas, 1851 (Hemiptera: Pentatomidae) eggs at different temperatures

Cordeiro

Bueno

2021

Rev. Bras. entomol.

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Trissolcus teretis has been recorded to parasitize eggs not only of Euschistus heros and Diceraeus melacanthus but also of other stink bug species in the most important soybean producing countries of South America such as Brazil, Argentina as well as other countries of the Neotropical region. Despite several studies relating to its natural incidence and parasitism, the impact of different temperatures on biology and parasitism capacity of T. teretis on eggs of E. heros and D. melacanthus is practically unknown. Considering that biological traits can be highly influenced by temperature, research on T. teretis parasitism at different temperatures and hosts is of theoretical and practical interest. We therefore evaluated T. teretis parasitism and development on eggs of E. heros and D. melacanthus at 15ºC, 20ºC, 25ºC, and 30ºC. Temperature had an impact on the parasitoid reared on eggs of both studied hosts. Although we recorded parasitism at an extreme temperature of 15ºC, these conditions are unfavorable for T. teretis parasitism, impairing parasitoid biological traits, especially survival of larvae and adult parasitism. Therefore, for application in crop fields where temperatures of 15ºC or lower are common, additional studies are necessary to investigate the possible need to increase parasitoid numbers during releases or to choose smaller intervals between multiple releases.

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Dichelops melacanthus and Euschistus heros injury on maize: Basis for re-evaluating stink bug thresholds for IPM decisions

Cited by 25 publications

References 23 publications

Biological characteristics of Trissolcus urichi (Crawford) (Hymenoptera: Scelionidae) on Euschistus heros (Fabricius) and Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae) Eggs

Biological characteristics of Trissolcus urichi (Crawford) (Hymenoptera: Scelionidae) on Euschistus heros (Fabricius) and Dichelops melacanthus (Dallas) (Hemiptera: Pentatomidae) Eggs

Subsídios para o manejo de percevejos na fase inicial da cultura do milho

Trissolcus teretis (Johnson, 1987) (Hymenoptera: Scelionidae) parasitism on Euschistus heros (Fabricius, 1798) and Diceraeus melacanthus Dallas, 1851 (Hemiptera: Pentatomidae) eggs at different temperatures

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