Effect of a Formulation ofBacillus thuringiensisBerliner var.kurstakionPodisus nigrispinusDallas (Heteroptera: Pentatomidae: Asopinae)

Nascimento, M. L.; Capalbo, D.F; Moraes, G. J. de; Nardo, E.A De; Maia, Aline H. N.; Oliveira, RC

doi:10.1006/jipa.1998.4767

Cited by 14 publications

(5 citation statements)

References 2 publications

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“…Other studies have also shown compatible and positive interaction between Bt and predaceous heteropterans, because of the failure to increase predation performance on moribund larvae or between those with reduced body size after treatment with Bt commercial products or those found on Bt‐transgenic plants (Nascimento et al. ; Bell et al. ; Torres et al.…”

Section: Discussionmentioning

confidence: 99%

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

Magalhães

Vacari

Laurentis

et al. 2014

J Applied Entomology

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The diamondback moth (DBM), Plutella xylostella (L.), is a major pest of brassica crops worldwide. Control of this pest is difficult because it rapidly develops resistance to synthetic and biological insecticides and because of the effects of insecticides on its natural enemies. Podisus nigrispinus (Dallas) is a predator that feeds on its prey, as well as on the host plants of its prey, and is an important biological control agent of DBMs. The aim of this study was to determine the susceptibility of P. xylostella larvae to two bioinsecticides: the HD1 strain of Bacillus thuringiensis (B. thuringiensis var. kurstaki) and the commercial product Agree â (B. thuringiensis var. aizawai CG 91). In addition, the impact of these bioinsecticides on the P. nigrispinus consumption of DBM larvae and phytophagy was evaluated. Both the HD1 strain and Agree â caused 100% mortality in P. xylostella larvae.P. nigrispinus nymphs fed only with kale leaves (Brassica oleracea var. acephala) sprayed with water, the HD1 strain, or Agree â did not complete their nymphal development. When prey was also available, P. nigiripinus fed on kale leaves to obtain water. Both nymphs and adults of P. nigrispinus consumed greater numbers of DBM larvae, and fed less on kale leaves, when sprayed with the HD1 strain or Agree â . These results suggest a positive interaction of B. thuringiensis-based products and the predator P. nigrispinus in the control of P. xylostella larvae.

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Section: Discussionmentioning

confidence: 99%

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

Magalhães

Vacari

Laurentis

et al. 2014

J Applied Entomology

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“…Insect growth regulators (IGR), commercial formulations of Bacillus thuringiensis Berliner and AgNPV (A. gemmatalis nuclear polyhedrosis virus) are safe or have low impact on P. nigrispinus. The nymphal stage of this predator is more sensitive to these compounds through contact treatment as well as through ingestion via contaminated larvae [24,25,27,29,33,51]. Some IGRs can reduce female fertility by topical application or when ingested through treated larvae [29].…”

Section: Releases Of P Nigrispinusmentioning

confidence: 99%

The predatory stinkbug Podisus nigrispinus : biology, ecology and augmentative releases for lepidoperan larval control in Eucalyptus forests in Brazil.

Torres

2006

CABI Reviews

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Podisus nigrispinus feeds primarily on insect larvae. It has been reared and released in Brazil to control lepidopterous larvae, particularly defoliators of Eucalyptus trees, but inoculative releases and conservation of natural populations in other crops have also been attempted. Aspects favouring the use of P. nigrispinus as a biocontrol agent include: (i) cost-effective mass-rearing capabilities with alternative prey or artificial diets; (ii) compatibility of the predator with some insecticides and forest production practices; (iii) natural occurrence in diverse habitats associated with lepidopteran outbreaks. The biology and ecology of P. nigrispinus and its mass production and use to control defoliating lepidopteran larvae in Eucalyptus plantations are discussed, and research needs to expand its use in pest management are outlined.

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“…Subsequently, spores and vegetative cells of B. thuringiensis were detected in the midgut of the predator Podisus nigrispinus (Dallas, 1861) (Hemiptera: Pentatomidae) fed on Bombyx mori (Lepidoptera: Bombycidae) treated with B. thuringiensis kurstaki (HD1) (Nascimento et al, 1998). Histological sections of the P. nigrispinus midgut shows the effects of proteins Cry1F, Cry1A.105, and Cry2Ab2, with histopathological changes, after predating Spodoptera frugiperda (J.E.…”

Section: Discussionmentioning

confidence: 99%

Insecticidal Effect of Cry Toxins Produced by Bacillus thuringiensis on Diceraeus melacanthus (Dallas, 1851) and Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae)

Costa¹,

Castro²,

Martins³

et al. 2022

JAS

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Some species of the Heteroptera (Hemiptera) suborder are of great agricultural importance, mainly as pests, and their control is often necessary. The use of Bacillus thuringiensis, an entomopathogenic bacterium normally extracted from the soil and used in biological control, is an alternative to the chemical control of these insects. Mortality tests must be carried out in order to select and determine a viable toxic strain, but currently there is no validated methodology for conducting those tests. In this context, this research aimed to develop and improve a selective bioassay methodology to assess the toxic effect of B. thuringiensis Cry toxins on Diceraeus melacanthus (green-belly stink bug) and Euschistus heros (neotropical brown stink bug) nymphs. A bioassay methodology consisting of tubes and artificial diet was proposed. Bioassays with D. melacanthus and E. heros nymphs were performed incorporating Cry toxins (Cry1Aa, Cry1Ab, Cry1Ac, Cry1B, Cry1C, Cry1F, Cry1G, Cry1Ia, Cry2Ab, Cry2A, Cry2Ae, Cry4A, Cry4B, Cry10, and Cry11Aa) into their liquid diet. The artificial feeding system developed in order to carry out the stink bug mortality tests was conducted. Among the toxins tested, we can highlight 2 causing 80-85% nymphal mortality on D. melacanthus, and 4 toxins causing 90-100% nymphal mortality for E. heros after 7 days of incubation. Both species are susceptible to different Cry toxins, with emphasis on Cry2Ab and Cry4B for D. melacanthus and Cry1B, Cry1G, Cry1Ia and Cry2Ab for E. heros.

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Effect of a Formulation ofBacillus thuringiensisBerliner var.kurstakionPodisus nigrispinusDallas (Heteroptera: Pentatomidae: Asopinae)

Cited by 14 publications

References 2 publications

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

Interactions of Bacillus thuringiensis bioinsecticides and the predatory stink bug Podisus nigrispinus to control Plutella xylostella

The predatory stinkbug Podisus nigrispinus : biology, ecology and augmentative releases for lepidoperan larval control in Eucalyptus forests in Brazil.

Insecticidal Effect of Cry Toxins Produced by Bacillus thuringiensis on Diceraeus melacanthus (Dallas, 1851) and Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae)

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