Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (1998) 122, 457-460

J.C. Zanuncio, V.C. Batalha, R.N.C. Guedes and M.C. Picanco (1998)
Insecticide selectivity to Supputius cincticeps (Stal) (Het., Pentatomidae) and its prey Spodoptera frugiperda (J. E. Smith) (Lep., Noctuidae)
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 122 (8), 457-460
Abstract: The selectivity of malathion, carbaryl, permethrin, and deltamethrin to Supputius cincticeps (Stal) (Het., Pentatomidae) and its prey Spodoptera frugiperda {J E Smith) (Lep., Noctuidae) (fall armyworm) was evaluated using leaves dipped in insecticide dilutions.Based on LC₅₀ values, malathion was the least toxic insecticide to the fall armyworm followed by carbaryl, permethrin and deltamethrin which was the most toxic compound to this insect pest. Malathion was also the least toxic insecticide to the predaceous bug S. cincticeps, while carbaryl and permethrin showed intermediate toxicity and deltamethrin was the most toxic insecticide to this species. Malathion and carbaryl were more toxic to the predator than to the fall armyworm showing low selectivity in favour of the first. However, the pyrethroids showed the opposite effect with deltamethrin being the most selective insecticide in favour of S. cincticeps. Nymphs of the fifth instar and adults of the predator were more tolerant to the pyrethroids than third-instar nymphs. The other insecticides showed similar toxicity to all three developmental stages of the predator.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): José Cola Zanuncio, Raul Narciso C. Guedes, Marcelo Coutinho Picanco

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
health/environmental effects of pesticides
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.
	Spodoptera frugiperda	Maize/corn (Zea mays)
Supputius cincticeps (predator)	Spodoptera frugiperda	Maize/corn (Zea mays)