Florida Entomologist (2016) 99, 113-116

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Júlio César Melo Poderoso, Maria Emilene Correia-Oliveira, Thiago Xavier Chagas, José Cola Zanuncio and Genésio Tâmara Ribeiro (2016)
Effects of plant extracts on developmental stages of the predator Podisus nigrispinus (Hemiptera: Pentatomidae)
Florida Entomologist 99 (1), 113-116
Abstract: The aim of this study was to evaluate the toxicity of aqueous extracts of Annona squamosa L. (Magnoliales: Annonaceae), Azadirachta indica A. Juss (Sapindales: Meliaceae), Corymbia citriodora Hook. (Myrtales: Myrtaceae), Cymbopogon winterianus Jowitt ex Bor (Poales: Poaceae), Lippia sidoides Cham. (Lamiales: Verbenaceae), Mentha arvensis L. (Lamiales: Lamiaceae), Ricinus communis L. (Malpighiales: Euphorbiaceae), and Sapindus saponaria L. (Sapindales: Sapindaceae) on the developmental stages (eggs, 5th instars, and adults) of a generalist predator Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae). The eggs were dipped in extract concentrations of 0, 1, 3, 5, 7, and 10%, and the nymphs and adults received 1 µL of each extract on the dorsal thorax. The extracts affected hatching, with the extracts of A. indica (flowers), A. squamosa, and R. communis being the most toxic. None of the extracts affected the mortality in the nymphal stage, whereas S. saponaria, A. indica (flowers), and L. sidoides extracts caused relatively high mortality rates in adults. Due to the insecticidal effect of these extracts, they need to be used with care because they affect the life cycle of the predator P. nigrispinus.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): José Cola Zanuncio, Maria Emilene Correia-Oliveira

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Podisus nigrispinus (predator)
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