Toxicity of organic supplies for the egg parasitoid Telenomus podisi

Silva, Débora Mello da; Bueno, Adeney de Freitas

doi:10.1590/s0103-84782014000100003

Cited by 8 publications

(5 citation statements)

References 21 publications

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“…Similar results with the same organic products tested in this research were reported for Telenomus podisi (Hymenoptera; Platygastridae) (Silva;Bueno, 2014). In this context, it is important to emphasize that benefits of agricultural farming go beyond beneficial arthropod preservation.…”

Section: Discussionsupporting

confidence: 86%

Organic products selectivity for Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)

Silva

Bueno

2015

Arq. Inst. Biol.

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RESUMO:A seletividade de diferentes inseticidas, fungicidas e fertilizantes usados no cultivo de soja orgânica foi avaliada de acordo com os protocolos propostos pela Pesticide and Beneficial Organisms Working Group of the International Organization for Biological Control (IOBC) sobre pupas e adultos de Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) em condições de laboratório. Os tratamentos 1) baculovírus anticarsia 140 x 10 9 cpi; 2) Bacillus thuringiensis 16,8 g; 3) azadirachtin-A, azadirachtin-B, nimbina e salamina 9,6 ppm; 4) rotenoides 4% 4 L; 5) nitrogênio 1,3%, fósforo 3,0% e carbono orgânico total 8,0% 3 L; 6) silicato de sódio 2% 4 L; 7) cobre 7% + cálcio 3,3% 1,8 L; 8) enxofre 20% + cal virgem 10% 1,8 L foram, no geral, inócuos (classe 1) para pupas e adultos de T. pretiosum. Diferentemente, clorpirifós (tratamento controle) foi nocivo para esse parasitoide. A utilização dos produtos de origem natural avaliados é viável na sojicultura orgânica sem impactar o controle biológico promovido por T. pretiosum. Ambas as táticas de manejo podem ser utilizadas conjuntamente na agricultura orgânica objetivando aumentar ou complementar o controle da praga-alvo. O uso do clorpirifós, por outro lado, sempre que possível, deve ser substituído por outros produtos mais compatíveis com a preservação do controle biológico. PALAVRAS-CHAVE: controle biológico; produtos seletivos; cultivo orgânico. ABSTRACT:The selectivity of different insecticides, fungicides and fertilizers used in organic soybean cropping was evaluated according to the protocols proposed by the Pesticides and Beneficial Organisms Working Group of the International Organization for Biological Control (IOBC) concerning adults and pupae of the egg parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) under laboratory conditions. Treatments 1) baculovirus anticarsia 140 x 10 9 cpi; 2) Bacillus thuringiensis 16.8 g; 3) azadirachtin-A, azadirachtin-B, nimbina and salamina 9.6 ppm; 4) rotenoids 4% 4 L; 5) nitrogen 1.3%, phosphorus 3.0% and total organic carbon 8.0% 3 L; 6) sodium silicate 2% 4 L; 7) copper 7% + calcium 3.3% 1.8 L; 8) sulfur 20% + quicklime 10% 1.8 L were in general safe (class 1) to both adults and pupae of T. pretiosum. Differently, chlorpyrifos (control treatment) was harmful to this parasitoid. Therefore, the utilization of the tested natural derived products in the production of organic soybean is viable, without impairing the natural biological control allowed by T. pretiosum. Furthermore, both management techniques can indeed be used together in organic cropping aiming at reaching increasing or complementary control of target pests. Chlorpyrifos use, on the other hand, whenever possible, should be replaced by other products more compatible with biological control preservation.

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Section: Discussionsupporting

confidence: 86%

Organic products selectivity for Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)

Silva

Bueno

2015

Arq. Inst. Biol.

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“…These results are similar to those obtained with pupae of the parasitoid Telenomus remus (Nixon, 1937) (Hymenoptera: Platygastridae) when using commercial mixtures such as Borda-Ferti pH 7 (7% copper + 3.3% calcium) and Lime-sulfur mixture (20% sulfur + 10% quicklime), which were classified as slightly harmful (class 2) . Similarly, selective tests carried out by Silva and Bueno (2014), who used the commercial mixture Borda-Ferti pH 7 (7% copper + 3.3% calcium) in the pupal stage of Telenomus podisi (Ashmead, 1893) (Hymenoptera: Platygastridae), showed no RAE and was considered as harmless (class 1). Lime-sulfur mixture (20% sulfur + 10% quicklime) was tested in that experiment and showed to be harmless in all assessments, not causing a reduction in the adult emergence rate or changing the parasitism rate.…”

Section: Resultsmentioning

confidence: 99%

Selectivity of pesticides used in peach orchards to eggs and pupae of the predators Chrysoperla externa and Coleomegilla quadrifasciata

Armas

Grützmacher

Nava

et al. 2019

SCA

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This study aimed to assess, under laboratory conditions, the selectivity of nine pesticides used in peach to the egg and pupal stages of the predators Chrysoperla externa and Coleomegilla quadrifasciata. Tests consisted of the direct application of pesticides on eggs and pupae of predators and assessment of sublethal effects on fertility and fecundity of emerged adults. For eggs, the pesticides were classified according to the effects on the reduction of the percentage of larval hatching, while for pupae they were classified as a function of the total effect, according to the toxicity scale proposed by the International Organization for Biological and Integrated Control (IOBC). All the pesticides (used dose) were harmless (class 1) to eggs of C. externa, but abamectin (80) and copper + calcium (1%) were considered slightly harmful (class 2) to pupae. In bioassays with C. quadrifasciata, abamectin (80), deltamethrin (40), and malathion (150) were classified as slightly harmful (class 2), while fenitrothion (100) was moderately harmful (class 3) to predator eggs; in the pupal stage, abamectin (80), fenitrothion (100), and malathion (150) were considered harmful (class 4). Azadirachtin (1%), chlorantraniliprole (14), deltamethrin (40), copper + calcium (25% + 10%), and sulfur + calcium (3.5 Ba) were harmless (class 1) to eggs and pupae of C. externa and C. quadrifasciata and thus should be prioritized in sprayings for pest control in the IPM of peach.

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“…Products based on Baculovirus anticarsia, Bacillus thuringiensis, Azadirachtin-A, azadirachtin-B, nimbina and salamina, rotenoids, nitrogen, phosphorus and total organic carbon, sodium silicate, copper + calcium, and sulfur + quicklime exhibited low toxicity for pupae and adults of T. podisi. Therefore, these organic inputs can be used in soybean crops, as they do not compromise the potential of this parasitoid for controlling stink bugs [91].…”

Section: Pests Et(s) Referencementioning

confidence: 99%

Biological Control as Part of the Soybean Integrated Pest Management (IPM): Potential and Challenges

Bueno,

Sutil,

Jahnke

et al. 2023

Agronomy

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Soybean production is usually performed on large scales, requiring simple but efficient pest management to be successful. Soybean fields are inhabited by several species of arthropods, demanding constant development of management practices to prevent pest outbreaks. More recently, stink bugs have become the most important pest group of soybeans in the Neotropics, responsible for up to 60% of the applied insecticides in Brazil. Natural enemies represent an important mortality factor that can keep the damage caused by stink bugs below the economic threshold levels without additional control actions. Thus, Conservation Biological Control (CBC) strategies can be adopted to preserve or even promote the increase in such natural enemies in the fields, or alternatively, massive releases of biocontrol agents in Augmentative Biological Control (ABC) programs could be adopted. Simple practices such as reducing insecticide use (with the adoption of economic thresholds), prioritizing harmless insecticides or biopesticides, and planting resistant soybean cultivars have been adopted in Brazil with positive results. The challenges to increasing the adoption of more complex stink bug management in commodity crops such as soybean may be overcome using the more recent economic incentives in the global agenda of decarbonized agriculture. The potential and challenges of conservation and augmentative biological control are further discussed in this review.

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Toxicity of organic supplies for the egg parasitoid Telenomus podisi

Abstract: ABSTRACT

Cited by 8 publications

References 21 publications

Organic products selectivity for Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)

Organic products selectivity for Trichogramma pretiosum (Hymenoptera: Trichogrammatidae)

Selectivity of pesticides used in peach orchards to eggs and pupae of the predators Chrysoperla externa and Coleomegilla quadrifasciata

Biological Control as Part of the Soybean Integrated Pest Management (IPM): Potential and Challenges

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