Ação de produtos naturais sobre a sobrevivência de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) e seletividade de inseticidas utilizados na produção orgânica de videira sobre Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Filho, Wilson José Morandi; Botton, Marcos; Grützmacher, Anderson Dionei; Giolo, Fabrizio Pinheiro; Manzoni, Cristiane Gindri

doi:10.1590/s0103-84782006000400005

Cited by 12 publications

(6 citation statements)

References 14 publications

(8 reference statements)

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“…However, according to Campbell et al ,20 who studied the effects of insecticides on egg parasitoids of lepidopteran pests in treated and untreated tomato crops, the use of endosulfan nullifies the action of the trichogrammatid parasitoids and therefore should be avoided with these insects. Further, the present results with etofenprox are not consistent with recent findings by Morandi Filho et al 21 in their toxicity tests with various products currently used in peach production. They concluded that endosulfan can be used in combination with T. pretiosum for field release in future.…”

Section: Resultscontrasting

confidence: 99%

Insecticide selectivity to two species of Trichogramma in three different hosts, as determined by IOBC/WPRS methodology

Goulart

Volpe

Vacari

et al. 2011

Pest Management Science

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Section: Resultscontrasting

confidence: 99%

Insecticide selectivity to two species of Trichogramma in three different hosts, as determined by IOBC/WPRS methodology

Goulart

Volpe

Vacari

et al. 2011

Pest Management Science

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“…Area foliate consuption (%) On the other hand, similar mortality values to those seen in this work were also observed in other natural plant extracts, such as piretro against Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) (MORANDI FILHO et al, 2006), Ruta graveolens L. (Rutaceae) against Sitophilus spp. (Coleoptera: Curculionidae), and Ctenocephalides canis (Curtis) (Siphonaptera: Pulicidae) (ALMEIDA et al, 1999;, Prosopis juliflora Sw. (D.C.) (Fabaceae) on Bemisia tabaci Genn.…”

Section: Resultssupporting

confidence: 88%

Toxicity of extracts of Cyperus rotundus on Diabrotica speciosa

et al. 2011

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ABSTRACT. The objective of this work was to evaluate the insecticidal effect or repellency of Cyperus rotundus, an important weed plant, through alternative methods of extraction, on Diabrotica speciosa, a pest that affects several plant species. The experimental design was completely casual, and consisted of five repetitions. The C. rotundus extracts were prepared using leaves and roots by alcoholic extraction, aqueous (hot water) extraction and aqueous (cold water) extraction and diluted to four different concentrations (0, 5, 10, and 15% of the volume of each extract). These dilutions were then tested and compared with a control. The higher mortality of D. speciosa adults as well as a smaller leaf consumption area were observed after treatments with increasing dosages of different C. rotundus extracts generated by alcoholic extraction (55% of mortality and 28% leaf consumption). Therefore, the alcoholic extract of the C. rotundus foliage is an option for the control of D. speciosa in agroecologic systems.Keywords: rootworm, nutgrass, Chrysomelidae, alternative control. RESUMO. Toxicidade de extratos de Cyperus rotundus sobre Diabrotica speciosa.O objetivo deste trabalho foi avaliar o efeito inseticida ou repelência de Cyperus rotundus, importante planta infestante, por meio de métodos alternativos de extração sobre Diabrotica speciosa. O delineamento experimental foi inteiramente casualizado, com cinco repetições. Os extratos foram elaborados utilizando raízes e folhas de C. rotundus mediante extração alcoólica, aquosa (água quente) e aquosa (água fria) diluindo-se em quatro diferentes concentrações (0, 5, 10 e 15%) em comparação com o controle (água). A maior mortalidade de adultos de D. speciosa, bem como, menor consumo de área foliar foram observadas com o aumento da dose nos diferentes extratos das folhas e das raízes de C. rotundus, destacando-se a extração alcoólica das folhas (55% da mortalidade e de 28% do consumo de folha). Portanto, o extrato alcoólico de folhas de C. rotundus é uma opção para o controle de D. speciosa em sistemas agroecológicos.

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“…In contrast to other published results that classified B. thuringiensis as innocuous (Amaro et al, 2015;Filho, Botton, Grutzmacher, Giolo, & Manzoni, 2006), our findings show a moderately harmful effect of B. thuringiensis (Table 2). These differences may be related to the source of the biological agent, which may vary with regard to the number of viable spores.…”

Section: Effect Of Insecticide Treatment On the Number Of Parasitizedcontrasting

confidence: 99%

Selectivity of Insecticides Against Adult Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on Cassava

Feltrin-Campos¹,

Ringenberg²,

Carvalho³

et al. 2018

JAS

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In this study, the effects of various chemical and biological insecticides on adults of the parasitoid species Trichogramma pretiosum (Riley) were examined in cassava. The chemical insecticides zeta-cypermethrin, lufenuron + profenofós, imidacloprid, thiamethoxam, and teflubenzuron and the biological agents Bacillus thuringiensis and Baculovirus erinnyis were evaluated. For each treatment group, the effects were evaluated using T. pretiosum mortality rates, longevity of females, the number of eggs parasitized by the F0 generation, and number of emergent F1 parasitoids. The insecticides were classified using the International Organization for Biological Control categories. The tested insecticides had little effect on longevity and survival of adults, but all affected parasitism (F0) and were moderately harmful to the parasitoid. In relation to the emergent (F1) generation, the pesticides were either harmless or slightly harmful, except for zeta-cypermethrin which was classified as harmful with a 100% reduction in parasitoid emergence. The results indicate that the tested insecticides were moderately harmful to T. pretiosum in the laboratory; future studies will examine the effects of the insecticides under semi-field and field conditions to confirm their toxicity.

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Ação de produtos naturais sobre a sobrevivência de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) e seletividade de inseticidas utilizados na produção orgânica de videira sobre Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Abstract: RESUMO Nesse trabalho, foi estudado o efeito de formulações comerciais de inseticidas, com ênfase para os produtos permitidos na produção orgânica (nim, piretro natural e extrato pirolenhoso) para o controle de

Cited by 12 publications

References 14 publications

Insecticide selectivity to two species of Trichogramma in three different hosts, as determined by IOBC/WPRS methodology

Insecticide selectivity to two species of Trichogramma in three different hosts, as determined by IOBC/WPRS methodology

Toxicity of extracts of Cyperus rotundus on Diabrotica speciosa

Selectivity of Insecticides Against Adult Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on Cassava

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