scholarly journals Kairomonal effect of walking traces from Euschistus heros (Heteroptera: Pentatomidae) on two strains of Telenomus podisi (Hymenoptera: Scelionidae)

2003 ◽  
Vol 28 (4) ◽  
pp. 349-355 ◽  
Author(s):  
Miguel Borges ◽  
Stefano Colazza ◽  
Pamela Ramirez-Lucas ◽  
Kamlesh R. Chauhan ◽  
Maria Carolina Blassioli Moraes ◽  
...  
Keyword(s):  
Euschistus Heros ◽  
Heteroptera Pentatomidae ◽  
Telenomus Podisi

scholarly journals Attraction of Telenomus podisi to volatiles induced by Euschistus heros in three different plant species

2016 ◽  
Vol 10 (5) ◽  
pp. 419-428 ◽  
Author(s):  
Aline Moreira Dias ◽  
Martín Pareja ◽  
Maycon Laia ◽  
Maria Carolina Blassioli-Moraes ◽  
Miguel Borges ◽  
...  
Keyword(s):  
Plant Species ◽  
Euschistus Heros ◽  
Telenomus Podisi

scholarly journals Biologia reprodutiva de Euschistus heros (F.) (Heteroptera: Pentatomidae)

1998 ◽  
Vol 27 (4) ◽  
pp. 559-568 ◽  
Author(s):  
Maria L.M. Costa ◽  
Miguel Borges ◽  
Evaldo F. Vilela
Keyword(s):  
Euschistus Heros ◽  
Heteroptera Pentatomidae

Estudou-se a biologia de Euschistus heros (F.) (Heteroptera: Pentatomidae) em laboratório sob 24±0,5ºC, 70±10% UR e fotofase de 14 h. O tempo médio de desenvolvimento até adulto foi de 38,6 d, sendo o 2º estádio ninfal, o de maior índice de mortalidade (10,4%). A longevidade de E. heros variou de acordo com o sexo e atividade sexual. Machos e fêmeas atingiram a maturidade sexual com 11,4 e 11,2 d, respectivamente. O tempo médio para a colocação de posturas, após o primeiro acasalamento, variou de 9,1 d para fêmeas, que acasalaram uma única vez, até 13,9 dias para fêmeas que acasalaram várias vezes durante o período de sobrevivência. O número médio de ovos por fêmea variou de 108,5 até 130,5, dependendo do número de acasalamento das fêmeas estudadas. Juntamente com a deposição das massas de ovos, foi observada a colocação de posturas isoladas com percentagens de 71,7 e 77,8 respectivamente, também dependendo do número de acasalamentos.

scholarly journals Potencial reprodutivo e longevidade do parasitóide Telenomus podisi Ashmead, em ovos de diferentes espécies de percevejos

1998 ◽  
Vol 27 (4) ◽  
pp. 585-591 ◽  
Author(s):  
Deoclecio J. P. Pacheco ◽  
Beatriz S. Corrêa-Ferreira
Keyword(s):  
Nezara Viridula ◽  
Euschistus Heros ◽  
Telenomus Podisi ◽  
Piezodorus Guildinii

O potencial reprodutivo e a longevidade do parasitóide de ovos Telenomus podisi Ashmead foram estudados, em laboratório, em ovos dos percevejos hospedeiros Euschistus heros (F.), Piezodorus guildinii (West.) e Nezara viridula (L.). A capacidade reprodutiva e a longevidade de fêmeas de T. podisi foram significativamente diferentes nas três espécies de percevejos. A maior produção de descendentes por fêmea ocorreu nos primeiros 10 dias de vida, em ovos de E. heros e P. guildinii. O parasitismo em N. viridula foi muito baixo (8,1%) e somente cinco indivíduos completaram seu desenvolvimento. Fêmeas jovens geraram maior número de fêmeas do que de machos, ocorrendo proporção inversa com o avanço da idade da fêmea. A razão sexual do parasitóide quando desenvolvido em E.heros e P. guildinii foi de 0,67 e 0,61 e a fertilidade média da fêmea durante a sua vida reprodutiva foi de 211,0 e 76,1 descendentes, respectivamente. A longevidade das fêmeas de T. podisi foi diferente em cada espécie hospedeira, vivendo, em média, 19,9, 30,9 e 40,6 dias quando parasitaram ovos de P. guildinii, E. heros e N. viridula, respectivamente. Os machos, entretanto, tiveram sempre longevidade maior em relação às fêmeas, apresentando um tempo de vida semelhante nos três hospedeiros (32,0, 34,5 e 43,5 dias, respectivamente). Os resultados sugerem que E. heros e P. guildinii são os hospedeiros mais adequados ao desenvolvimento de T. podisi.

scholarly journals Effects of Essential Oils from Two Species of Piperaceae on Parasitized and Unparasitized Eggs of Oebalus insularis (Heteroptera: Pentatomidae) by Telenomus podisi (Hymenoptera: Platygastridae)

2019 ◽  
Vol 14 (1) ◽  
pp. 1934578X1901400
Author(s):  
Bruno Zachrisson ◽  
Ana Santana ◽  
Mahabir Gupta
Keyword(s):  
Biological Control ◽  
Essential Oils ◽  
Exposure Time ◽  
Stink Bug ◽  
Insect Eggs ◽  
Heteroptera Pentatomidae ◽  
Telenomus Podisi ◽  
Rice Stink Bug

Biological control of Oebalus insularis eggs is considered an important strategy in the control of this rice “stink bug”. Effects of essential oils (EOs) from Piper jacquemontianum Kunth and Piper marginatum Jacq. (Piperaceae) on the viability of parasitized and unparasitized eggs by Telenomus podisi, in concentrations of 0.5 to 2.0%, were evaluated. EOs from both species at a concentration of 2% affected the development of embryons of O. insularis as well as of T. podisi after 24 and 48h of their administration. In both species, P. jacquemontanium and P. marginatum LC50, 24 h before the application of treatments on eggs of O. insularis was 3.835 y 3.037, respectively. LC50 after 48 h of treatment with EOs showed contrasting results which varied from 2.207 and 1.811. for P. jacquemontianum and P. marginatum, respectively. LC50 calculated before 24 h in parasitized eggs of O. insularis by T. podisi, was 3.037 and 2.171 for P. jacquemontianum y P. marginatum, respectively, while after 48h of treatment it was 1.166 y 1.935, respectively. Absorption of the EO components by the unparasitized and parasitized eggs of O. insularis by T. podisi was higher after 48 h of exposition. This is due to the longer exposure time, which allows higher penetration of the EOs into the interior of insect eggs by microscopic pores and micropyle.

Cytotoxicity of Piper aduncum (Piperaceae) essential oil in brown stink bug Euschistus heros (Heteroptera: Pentatomidae)

Ecotoxicology ◽  
2019 ◽  
Vol 28 (7) ◽  
pp. 763-770 ◽  
Author(s):  
Jamile F. S. Cossolin ◽  
Mônica J. B. Pereira ◽  
Luis C. Martínez ◽  
Leonardo M. Turchen ◽  
Muhammad Fiaz ◽  
...  
Keyword(s):  
Essential Oil ◽  
Stink Bug ◽  
Euschistus Heros ◽  
Heteroptera Pentatomidae ◽  
Piper Aduncum

scholarly journals Selectivity of Insecticides Against Telenomus podisi Ashmead (Hymenoptera: Platygastridae) on Corn

2018 ◽  
Vol 10 (12) ◽  
pp. 185 ◽  
Author(s):  
Elidiane Feltrin-Campos ◽  
Marcos Gino Fernandes ◽  
Gabrielle de Lima Masson ◽  
Thaís Araujo Corrêa ◽  
José Fernando Jurca Grigolli
Keyword(s):  
Adverse Effects ◽  
Pest Management ◽  
Human Health ◽  
Control Strategy ◽  
Mortality Rates ◽  
Biological Trait ◽  
Parasitism Rates ◽  
Lambda Cyhalothrin ◽  
Euschistus Heros ◽  
Telenomus Podisi

Use of synthetic insecticides remains main control strategy for percevejo-marrom (Euschistus heros) in corn. However, indiscriminate use of these products can have adverse effects on the environment and human health. Thus, incorporation of bio-agents like Telenomus podisi a preferred option in corn pest management. Study was conductedto evaluate the effects of insecticides application on T. podisi mortality rates, the number of eggs parasitized by the F0 generation, and number of emergent F1 parasitoids. The insecticides tested were: imidacloprid+bifenthrin, bifenthrin+carbosulfan, thiametoxam+lambda-cyhalothrin, acephate, bifenthrin, and imidacloprid at the highest concentrations indicated for corn. Each insecticide was classified according to its selectivity, based on the methodology proposed by IOBC/WPRS. Only imidacloprid did not affect parasitoid survival however the parasitism rates of F0 females, were affected, classifying this product as slightly harmful for this biological trait. Regarding parasitoid emergence (F1), thiametoxam+lambda-cyhalothrin was classified as moderately harmful, while bifenthrin+carbosulfan and bifenthrin were considered harmful, no parasitism occurred. Thus the evaluated insecticides were classified as slightly harmful to the parasitoid T. podisi under laboratory conditions for the biological characteristics evaluated. Further studies under semi-field and field conditions are needed in order to confirm these toxicity levels on T. podisi.

Feeding Preference by Stink Bugs (Heteroptera: Pentatomidae) for Seeds Within Soybean Pods

1995 ◽  
Vol 30 (3) ◽  
pp. 333-341 ◽  
Author(s):  
Antônio R. Panizzi ◽  
Cintia C. Niva ◽  
Edson Hirose
Keyword(s):  
Feeding Activity ◽  
Feeding Preference ◽  
Distal Region ◽  
Stink Bugs ◽  
Feeding Frequency ◽  
Euschistus Heros ◽  
Significant Temperature ◽  
Growth Chambers ◽  
Heteroptera Pentatomidae ◽  
Piezodorus Guildinii

Studies were conducted in the laboratory and in growth chambers to determine if the location of particular seeds within soybean pods were preferred by adult Nezara viridula (L.), Euschistus heros (F.), and Piezodorus guildinii (Westwood) (Heteroptera: Pentatomidae). Results demonstrated that feeding frequency, as indicated by the number of punctures (i.e., stylet sheaths), was significantly greater (P < 0.05) on the proximal seed, than on other seeds, both for detached pods and pods on plants. In general, the number of punctures on the proximal seed was 2–3X greater than punctures observed in the medial or distal region. Of the three species studied, N. viridula showed the greatest feeding activity and P. guildinii the least. No significant differences in feeding activity between sexes were observed. N. viridula fed more frequently at 22 than at 29°C, while no significant temperature effect was observed for E. heros.

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