Pesquisa Agropecuária Brasileira (2000) 35, 251-257

Marcelo Fialho De Moura, Marcelo Picanço, Alfredo Henrique Rocha Gonring and Cláudio Horst Bruckner (2000)
Seletividade de inseticidas a três Vespidae predadores de Dione juno juno (Lepidoptera: Heliconidae)
[Selectivity of insecticides to three Vespidae predators of Dione juno juno (Lepidoptera: Heliconidae)]
Pesquisa Agropecuária Brasileira 35 (2), 251-257
Abstract: Among insects that attack passion fruit, Dione juno juno (Lepidoptera: Heliconidae) is considered the most dangerous plague. The selectivity of the insecticides fenthion, cartap, malathion and deltamethrin to the predatory wasps Polybia fastidiosuscula, Polybia scutellaris and Protonectarina sylveirae (Hymenoptera: Vespidae) was studied based on these insecticide toxicities to their prey Dione juno juno. Concentration-mortality regression lines were obtained and the estimated lethal concentration of insecticide to 90% (LC₉₀) of the individuals were used for the calculation of the differential selectivity index and tolerance index. Deltamethrin was selective in favor of P. scutellaris and P. fastidiosuscula and showed intermediate selectivity to P. sylveirae, while cartap showed intermediate selectivity to all three species of predatory wasps. Malathion was selectivite to P. sylveirae and showed intermediate selectivity to P. fastidiosuscula. The predatory wasps P. sylveirae and P. fastidiosuscula were more tolerant to cartap than P. scutellaris and P. sylveirae was more tolerant to malathion than P. fastidiosuscula and P. scutellaris.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Marcelo Coutinho Picanco

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Dione juno	Passionfruit (Passiflora)	Brazil (south)
Protonectarina sylveirae (predator)			Brazil (south)
Polybia scutellaris (predator)			Brazil (south)
Polybia fastidiosuscula (predator)			Brazil (south)