Natural parasitism of Hexacladia smithii Ashmead (Hymenoptera: Encyrtidae) on Euschistus heros (F.) (Hemiptera: Pentatomidae): new record from Mato Grosso State, Brazil

Turchen, Leonardo Morais; Golin, Vanessa; Favetti, Bruna Magda; Butnariu, Alessandra Regina; Costa, Valmir Antônio

doi:10.1590/1808-1657000852013

Cited by 7 publications

(11 citation statements)

References 10 publications

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“…Even with clear differences in species richness, the diversity levels were similar between the regions, with exception of region C2 that was richer and diverse, and no effect of latitudinal gradient was observed in parasitoid guild. The parasitoids found in this work was previously reported in different hosts so they appear to be not specific (Corrêa-Ferreira et al, 1998b;Guimarães, 1977;Jones et al, 1996;Panizzi and Corrêa-Ferreira, 1997), but they show some host preference, as in the case of Hexacladia smithii that was obtained exclusively from E. heros as previously reported in literature (Corrêa-Ferreira, 1998a;Turchen et al, 2015).…”

Section: Discussionsupporting

confidence: 82%

“…is the most frequent species found parasitizing adults of E. heros in Brazil (Corrêa-Ferreira et al, 1998a;Turchen et al, 2015). This species was also found in Brazil and in Argentina parasitizing others pentatomids and species of Coreidae and Scutelleridae Costa Lima, 1930, Cuezzo andFidalgo, 1997;De Santis, 1979, Panizzi and.…”

Section: Introductionmentioning

confidence: 89%

“…Parasitoides de adultos de percevejos pertencem às ordens Diptera e Hymenoptera (Corrêa-Ferreira e Panizzi, 1999). Hexacladia smithii Ashmead, 1891 (Hymenoptera: Encyrtidae) é o himenóptero mais frequente em adultos do percevejo E. heros na cultura de soja Turchen et al, 2015) (Figura 1). Existem também relatos de parasitismo por esta espécie em adultos de percevejos-pragas do maracujazeiro da família Coreidae Trichopoda giacomellii tem sido utilizado em programas de controle biológico na Austrália e na Argentina e tem reduzido densidades populacionais de N. viridula (Coombs e Sands, 2000;Liljesthrom e Bernstein, 1990).…”

Section: Introdução Geralunclassified

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Interações de percevejos e parasitoides de adultos no sistema de cultura da soja

Aquino¹

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Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 89%

Section: Introdução Geralunclassified

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Interações de percevejos e parasitoides de adultos no sistema de cultura da soja

Aquino¹

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“…Nonetheless, more studies should be conducted to compare the effect of oils obtained from other plant parts, including inflorescences and branches (stems) from the Piper species used in this study as well as other species with a wide geographical distribution (Fazolin et al, 2007;Ghosh et al, 2014;Lima et al, 2009;Parmar et al, 1997;Santos et al, 2010), to verify whether this ovicidal pattern remains constant. In addition, bioassays should be conducted to test the effect of various EOs on egg parasitoids of insect pests (Favetti et al, 2013;Krinski;Pelissari, 2012;Krinski;Butnariu, 2012;Krinski, 2013;Turchen et al, 2015;Zachrisson;Bernal, 2014;Zachrisson et al, 2014), since research to verify the selectivity of extracts or EOs of plants on natural enemies are scarce and almost non-existent (Turchen et al, 2014).…”

Section: Lethal Concentrationsmentioning

confidence: 99%

Toxicity of essential oils from leaves of Piperaceae species in rice stalk stink bug eggs, Tibraca limbativentris (Hemiptera: Pentatomidae)

Krinski

Foerster

2016

Ciênc. agrotec.

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Tibraca limbativentris to is an important rice pest and occurs in all rice-growing regions of Latin America. The control this insect is accomplished with synthetic chemical insecticides, however, new approaches are needed to reduce risks to the environment, to the natural enemies and also to avoid the onset of insecticides resistance. This study was designed to assess the toxicity of essential oils (EOs) from leaves of Piper aduncum, P. gaudichaudianum, P. malacophyllum, P. marginatum and P. tuberculatum (Piperaceae) on rice stalk stink bug eggs, T. limbativentris. Essential oils were extracted with steam distillation and dilutions were made for bioassays at concentrations of 0.25; 0.5; 1.0; 2.0 and 4.0%. Essential oils from all species of Piperaceae displayed ovicidal activity. The LC 50 values indicated that both younger and older eggs were susceptible to these oils. Ovicidal activity is related to the potential toxicity of several compounds, especially dilapiolle, myristicin, cubebene, α-guaiene, longifolene, prezizane, spathulenol, sabinene and δ-2-carene. Thus, EOs tested showed promising results for use as biorational botanical insecticides. Index terms: Piper aduncum; Piper gaudichaudianum; Piper malacophyllum; Piper marginatum; Piper tuberculatum. RESUMOTibraca limbativentris é uma importante praga do arroz e ocorre em todas as regiões de cultivo de arroz da América Latina. O controle destes inseto é realizado com inseticidas químicos sintéticos, no entanto, novas abordagens são necessárias para reduzir os riscos para o ambiente, inimigos naturais, e também para evitar o aparecimento da resistência aos inseticidas. Este estudo foi concebido para avaliar a toxicidade dos óleos essenciais (OEs) das folhas de Piper aduncum, P. gaudichaudianum, P. malacophyllum, P. marginatum e P. tuberculatum (Piperaceae) sobre ovos do percevejo do colmo do arroz, T. limbativentris. Os OEs foram extraídos por arraste de vapor d´agua e a partir destes foram feitas diluições nas concentrações de 0,25; 0,5; 1,0; 2,0 e 4,0% para os bioensaios. Os OEs de todas as espécies de Piperaceae apresentaram atividade ovicida. Os valores de CL 50 indicaram que tanto os ovos mais jovens quantos os mais velhos foram suscetíveis aos diferentes óleos. Esta atividade ovicida pode estar relacionada com a toxicidade dos vários compostos encontrados em cada OE, como o dilapiol, miristicina, cubebeno, α-guaieno, longifoleno, prezizano, espatulenol, sabineno e δ-2-careno. Assim, os OEs testados mostraram resultados promissores para serem utilizados como inseticidas vegetais.

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“…For example, the neotropical smelly brown beetle Euschistus heros (F.) (Hemiptera: Pentatomidae), a soybean pest, was first discovered in the state of Mato Grosso in Brazil several years ago. As a result of the research, recommendations were made to use Hexacladia smithii Ashmead (Hymenoptera: Encyrtidae) as an alternative to synthetic insecticides for pest control [13]. A natural extract with the insecticidal properties of their leaves Piper aduncum (Piperaceae) against the stink bug on soybeans has been recommended [14].…”

Section: Introductionmentioning

confidence: 99%

On the problem of grain damage in the form of dark spots in field conditions when cultivating rice in Krasnodar region

2021

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The analysis of grain damage in the form of dark spots of Russian rice varieties grown in Krasnodar region in 2011-2020 has been carried out. Rice grain was damaged during the filling period, mainly in full ripeness. The high degree of damage was the reason for the deterioration of grain quality. The degree of damage varied over the years. 2011 and 2012 were characterized by a high content of damaged grains (up to 3-20%). The degree of damage to rice grain was different in different agar-landscape zones of Krasnodar region: in the Krasnoarmeysky district it was higher than in the Abinsky. On panicles of variety Rapan without stinkbugs, one caryopsis with damage was found, while on panicles with stinkbugs, their number increased to 12.4-20.3%. In variety Kurazh, damage to caryopses in the form of dark spots on panicles with stinkbugs reached 10.1-19.1%. A significant increase in the degree of damage to rice grain stored in storage began in 2011. In 2011, the content of damaged grains increased by more than 1%, in 2012 it reached 8.3% in the Slavyansky district. Since 2013, the degree of damage to rice grain in the field began to decrease. It is concluded that the damage is associated with the pathogenic effect on the plant and the caryopsis of bug insects with a piercing-sucking mouth apparatus. Damage to caryopses was insignificant in 2015-2020.

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Natural parasitism of Hexacladia smithii Ashmead (Hymenoptera: Encyrtidae) on Euschistus heros (F.) (Hemiptera: Pentatomidae): new record from Mato Grosso State, Brazil

Cited by 7 publications

References 10 publications

Interações de percevejos e parasitoides de adultos no sistema de cultura da soja

Interações de percevejos e parasitoides de adultos no sistema de cultura da soja

Toxicity of essential oils from leaves of Piperaceae species in rice stalk stink bug eggs, Tibraca limbativentris (Hemiptera: Pentatomidae)

On the problem of grain damage in the form of dark spots in field conditions when cultivating rice in Krasnodar region

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