Effects of thiamethoxam and lambda-cyhalothrin on spermatogenesis of Euschistus heros (Heteroptera: Pentatomidae)

2017 ◽  
Vol 20 (1) ◽  
pp. 279-287
Author(s):  
Rachel Colauto Milanezi Aguiar ◽  
Patrícia Elizabeth Husch ◽  
Raquel Bozini Gallo ◽  
Sheila Michele Levy ◽  
Laurival Antônio Vilas-Bôas ◽  
...  
Keyword(s):  
Lambda Cyhalothrin ◽  
Euschistus Heros ◽  
Heteroptera Pentatomidae

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.

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.

scholarly journals Stimulatory male volatiles for the Neotropical brown stink bug, Euschistus heros (F.) (Heteroptera: Pentatomidae)

2003 ◽  
Vol 32 (4) ◽  
pp. 713-717 ◽  
Author(s):  
Aijun Zhang ◽  
Miguel Borges ◽  
Jeffrey R. Aldrich ◽  
Mary Camp
Keyword(s):  
Stink Bug ◽  
Euschistus Heros ◽  
Heteroptera Pentatomidae ◽  
Male Volatiles

scholarly journals Influence of Volatile and Nonvolatile Secondary Metabolites From Soybean Pods on Feeding and on Oviposition Behavior of Euschistus heros (Hemiptera: Heteroptera: Pentatomidae)

2013 ◽  
Vol 42 (6) ◽  
pp. 1375-1382 ◽  
Author(s):  
Flávia A. C. Silva ◽  
Mercedes C. Carrão-Panizzi ◽  
Maria C. Blassioli-Moraes ◽  
Antônio R. Panizzi
Keyword(s):  
Secondary Metabolites ◽  
Oviposition Behavior ◽  
Euschistus Heros ◽  
Heteroptera Pentatomidae
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