Efficacy of Telenomuspodisi Ashmead, 1893 (Hymenoptera: Platygastridae) release for the control of Euschistus heros (Fabricius, 1794) (Hemiptera: Pentatomidae) eggs in soybean, in Brazil

Filho, José C.A. Pernambuco; Almeida, Wellington S.M.; Gladenucci, Joanina; Zachrisson, Bruno; Oliveira, Regiane Cristina de

doi:10.4067/s0718-34292022000100077

Cited by 4 publications

(7 citation statements)

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“…Bueno et al 11 achieved satisfactory control of an E. heros population when they performed three releases of 6250 T. podisi pupae (approximately 4375 females, assuming a sex ratio of 0.7) at 7-day intervals. Pernambuco et al 24 concluded that three releases of 6500 adults of T. podisi (approximately 5200 females, considering a sex ratio of 0.8 reported by the authors) significantly reduced the number of nymphs and adults of E. heros and were more effective than the lower numbers of parasitoids per release evaluated.…”

Section: Discussionmentioning

confidence: 94%

“…Moreover, Pernambuco et al . investigated the efficiency of three releases of four different numbers of parasitoids per release during a crop season on the efficiency of reducing E. heros populations 24 . However, other numbers of released parasitoids and various release frequencies over the crop season still need to be tested.…”

Section: Introductionmentioning

confidence: 99%

“…11 Moreover, Pernambuco et al investigated the efficiency of three releases of four different numbers of parasitoids per release during a crop season on the efficiency of reducing E. heros populations. 24 However, other numbers of released parasitoids and various release frequencies over the crop season still need to be tested. The process of determining these variables of parasitoid release for pest suppression can be time-consuming and costly, as it is often carried out by trial and error.…”

Section: Introductionmentioning

confidence: 99%

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Release strategies of Telenomus podisi for control of Euschistus heros: a computational modeling approach

Weber

Garcia

Bueno

et al. 2022

Pest Management Science

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The egg-parasitoid wasp Telenomus podisi has received attention as a biological-control agent for one of the most important soybean pests in Brazil, the stink bug Euschistus heros. As yet, no studies have conclusively established strategies for the release of T. podisi. We developed a computational model employing cellular automata to investigate release strategies for T. podisi in soybean crops, in order to optimize the use of these wasps in managing E. heros. A computational model was developed, using cellular automata in the C programming language and assuming a two-dimensional grid of cells corresponding to a soybean eld. The biological dynamics of E. heros and T. podisi were programmed. The following parameters for release strategy were investigated: release mode, number of releases, number of parasitoids per hectare per release, and spacing between release points or strips. The sensitivities of the release and movement parameters were analyzed. The release strategies capable of maintaining an E. heros population below the Economic Threshold level involved releasing a total of at least 15,000 female parasitoids per hectare, in three or four releases of 5,000 or more. A 25-m spacing between release points or strips was indicated. The theoretical results produced by the computational model are expected to guide future eld studies to improve T. podisi release plans for managing E. heros in soybeans.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Release strategies of Telenomus podisi for control of Euschistus heros: a computational modeling approach

Weber

Garcia

Bueno

et al. 2022

Pest Management Science

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“…Stink bugs usually arrive at soybean crops at the end of the vegetative stage and remain until the end of the reproductive stage [9]. When released in early dates, T. podisi shows more efficacy to control nymphs and adults as well [15]. However, despite being released in the middle of reproductive stage, the parasitoids lowered the populations of E. heros in comparison with the control area.…”

Section: Discussionmentioning

confidence: 99%

“…Bioassays carried out in the field can be influenced by external factors that are difficult to control and that affect the quality and productivity of the crop [15], such as high or low temperatures, rainfall, type of variety, migration of new pests, etc. In addition, as the soybean cultivar used and the agronomic management carried out in the field were the same in the three experimental areas, similarities in productive reproductive parameters between treatments were found.…”

Section: Discussionmentioning

confidence: 99%

Release of Adults and Pupae of T<em>elenomus podisi</em> (Hymenoptera: Scelionidae) For the Management of <em>Euschistus heros</em> (Hemiptera: Pentatomidae) In Soybean

Parra¹,

Pereira²,

Hoback³

et al. 2023

Preprint

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Euschistus heros (Hemiptera: Pentatomidae) is one of the main pests of soybean. Egg parasitoids such as Telenomus podisi (Hymenoptera: Scelionidae) can be highly effective in attacking E. heros eggs, preventing the establishment at levels of economic damage. This study evaluated two re-lease methods of T. podisi in soybean. The treatments compared results from release of T. podisi adults fed with honey in cardboard capsules and the release of pupae in bulk. Four aerial releas-es per area were carried out via drone (7,500 females/ha) distributed at 10 points. The population density of E. heros, productivity and reproductive aspects of soybean were evaluated. Total pop-ulation of E. heros was lower in adult release treatment and male population was lower with pupae release. Thousand grain weight had higher values in fed adults treatments compared to release of pupae and control. Number of damage grains was lower in both release treatments compared with the control area. Therefore, the use of biological control with inundative release of T. podisi, regardless of the release method, is recommended within IPM programs, supporting production parameters and benefiting the sustainability of the agroecosystem.

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Augmentative biological control of stink bugs on soybean: the Brazilian scenario

de F. Bueno,

Sutil,

Roswadoski

et al. 2024

CABI Agric Biosci

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Augmentative Biological Control (ABC) is one of the essential strategies for building a more sustainable agriculture, especially in commodities such as soybean, where the overuse of insecticides has been the subject of much concern over the last years. Due to its high potential for parasitism, the egg parasitoid Telenomus podisi has been considered one of the main ABC agents of stink bugs, especially Euschistus heros, one of the major pests of soybean in South America. In this context, this article presents a review of the current situation of ABC against stink bugs with T. podisi. Despite promising results, it should be taken into account that parasitoids are fragile organisms of small size, and biotic and abiotic factors can negatively impact their parasitism efficacy. Thus, we present published results with T. podisi to introduce a more sustainable management of stink bugs and discuss the existing challenges related to the correct adoption of T. podisi in ABC programs which need more attention in order to reach the greatest potential benefits.

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Efficacy of Telenomuspodisi Ashmead, 1893 (Hymenoptera: Platygastridae) release for the control of Euschistus heros (Fabricius, 1794) (Hemiptera: Pentatomidae) eggs in soybean, in Brazil

Cited by 4 publications

References 0 publications

Release strategies of Telenomus podisi for control of Euschistus heros: a computational modeling approach

Release strategies of Telenomus podisi for control of Euschistus heros: a computational modeling approach

Release of Adults and Pupae of T<em>elenomus podisi</em> (Hymenoptera: Scelionidae) For the Management of <em>Euschistus heros</em> (Hemiptera: Pentatomidae) In Soybean

Augmentative biological control of stink bugs on soybean: the Brazilian scenario

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