Oviposition preference of the neotropical brown stink bug Euschistus heros on artificial substrates of different colors

Krinski, Diones; Favetti, Bruna Magda; Lima, Adielson Gonçalves de; Brum, Tatiane Regina

doi:10.1590/s0103-84782013001200011

Cited by 3 publications

(1 citation statement)

References 25 publications

(24 reference statements)

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“…Euschistus heros (Fabricius, 1794) (Hemiptera: Pentatomidae) is the most abundant and prevalent species in areas cultivated with soybeans in Brazil (Panizzi et al, 2012;Krinski et al, 2013) Bedbugs occur in soybean at all stages and are harmful from the beginning of pod formation until grain maturity (Zambiazzi et al, 2012). The damage caused by E. heros when uncontrolled can get up to 30% on soybean (Vivan & Degrande, 2011).…”

Section: Introductionmentioning

confidence: 99%

Sequential Sampling of Adults and Nymphs of Euschistus heros (F) (Hemiptera: Pentatomidae) on Soybean Bt and Non-Bt

Fonseca¹,

Fernandes²,

Justiniano³

et al. 2014

JAS

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To deploy the appropriate management of adults and nymphs of Euschistus heros (Fabricius, 1794) in soybean, we need to construct a sampling plan that allows estimate population density quickly and accurately. This research aimed to perform sequential sampling of adults and nymphs of E. heros in Bt and non-Bt soybeans. For the evaluations we used the method of cloth-to-hit, two regions in which the sample areas where we collected a sample randomly per plot of each trial were installed. Evaluations were performed at 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98 days after emergence (DAE). We adopted the model of contagious distribution, it was constructed a sequential sampling plan in accordance with the Sequential Probability Ratio Test (TSRP). The adopted control level two bugs (adults and nymphs) per cloth beat. The analysis showed two lines of decision: the upper, which is the condition that the adoption of a method of control is recommended, defined by S1 = 6.2449 +0.14244 n; and below, representing that the adoption of some method of control is not recommended, defined by S0 = -6.2449 +0.14244 n. The sampling showed a maximum expected number eight samples to determine the need or otherwise of control. For management based on economic injury level, the expected number of sample units is 17, indicated by the Sequential Probability Ratio Test Wald curve.

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Section: Introductionmentioning

confidence: 99%

Sequential Sampling of Adults and Nymphs of Euschistus heros (F) (Hemiptera: Pentatomidae) on Soybean Bt and Non-Bt

Fonseca¹,

Fernandes²,

Justiniano³

et al. 2014

JAS

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Tempo letal e período residual de inseticidas a ninfas e adultos do percevejo marrom da soja (Euschistus heros) (Fabricius, 1794) (Heteroptera: Pentatomidae)

Rossini

Santos

Picanço

2021

RSD

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O percevejo marrom (Euschistus heros) é considerado a principal espécie praga da soja no Brasil, com ampla distribuição geográfica predominando nas regiões Centro-Oeste e norte do Paraná. Além disso, esta praga apresenta tolerância aos inseticidas químicos utilizados para o seu controle. Deste modo, o objetivo desse trabalho foi avaliar o tempo letal e o período residual de inseticidas em ninfas e adultos do percevejo-marrom. Foram utilizados os inseticidas lambda-cialotrina + tiametoxam, imidacloprido, imidacloprido + bifentrina, bifentrina e acefato, e em sequência submetidos as ninfas e os adultos de percevejo marrom a alimentação foram submetidos aos inseticidas acima para determinação do tempo letal e período residual dos produtos. Os inseticidas Imidacloprido + Bifentrina e Lambda-cialotrina + Tiametoxam são mais eficientes para o controle de ninfas e adultos de E. heros por apresentarem menor tempo letal e maior período residual.

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Biological Characteristics and Thermal Requirements of Telenomus podisi and Trissolcus basalis (Hymenoptera: Scelionidae) in Fresh and Cryopreserved Eggs of Euschistus heros and Nezara viridula (Hemiptera: Pentatomidae)

Oliveira,

Ikuno,

Pratissoli

et al. 2024

Agronomy

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Brazil is one of the largest producers of pulses globally, and soybean ranks highly in terms of production. However, pests increase crop production costs and affect oilseed production and quality. Pests are primarily controlled by chemicals, leading to changes in insect pest populations. For example, secondary pests can become primary pests because of the selection of resistant insects and the elimination of natural enemies. Farmers have widely accepted biological control because of its high control efficacy and low environmental contamination risk. Two successful biological control programs in soybean used Telenomus podisi Ashmead (Hymenoptera: Platygastridae) to manage the Neotropical brown stink bug, Euschistus heros (Fabricius) (Hemiptera: Pentatomidae), and Trissolcus basalis (Wollaston, 1858) (Hymenoptera: Scelionidae) to manage the southern green stink bug, Nezara viridula (Linnaeus) (Hemiptera: Pentatomidae), when these pests were the most abundant in soybean-producing regions. To release parasitoids, rearing protocols must be developed in order to optimize production. This study evaluated the effect of temperature on the biological characteristics of T. podisi and T. basalis when fresh or frozen E. heros eggs were provided. Fifty fresh or previously frozen eggs were placed with parasitoids for 24 h in a climate chamber (25 ± 1 °C, 70 ± 10% RH, and 14-h photophase). At the end of this period, the eggs were transferred to other chambers and maintained at different temperatures (19, 22, 25, 28, 31, and 34 ± 1 °C, 70 ± 10% RH, with a 14-h photoperiod). The number of emerging adults from eggs parasitized by T. basalis was lower than that from eggs parasitized by T. podisi. Differences in T. basalis and T. podisi parasitism were observed depending on whether the E. heros eggs were frozen or fresh, but neither development nor emergence were affected. The duration of egg–adult development and the longevity of the two parasitoids were inversely proportional to the temperature increase. The sex ratio of T. basalis and T. podisi progeny was not affected by different temperatures or by the use of frozen or fresh eggs. The estimated number of both parasitoids’ generations corresponded with temperature, reaching 14–15 generations/cycle of soybean for Rio Verde, GO, and 12–14 generations/cycle for Barreiras, BA. Given these characteristics, we conclude that a biological control program using T. podisi can benefit large areas of soybean production by controlling the eggs of phytophagous bugs in soybean crops.

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Oviposition preference of the neotropical brown stink bug Euschistus heros on artificial substrates of different colors

Cited by 3 publications

References 25 publications

Sequential Sampling of Adults and Nymphs of Euschistus heros (F) (Hemiptera: Pentatomidae) on Soybean Bt and Non-Bt

Sequential Sampling of Adults and Nymphs of Euschistus heros (F) (Hemiptera: Pentatomidae) on Soybean Bt and Non-Bt

Tempo letal e período residual de inseticidas a ninfas e adultos do percevejo marrom da soja (Euschistus heros) (Fabricius, 1794) (Heteroptera: Pentatomidae)

Biological Characteristics and Thermal Requirements of Telenomus podisi and Trissolcus basalis (Hymenoptera: Scelionidae) in Fresh and Cryopreserved Eggs of Euschistus heros and Nezara viridula (Hemiptera: Pentatomidae)

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