Experimental and Applied Acarology (2008) 44, 315-321

Jan Hubert, Zuzana Münzbergová, Marta Nesvorná, Palmiro Poltronieri and Angelo Santino (2008)
Acaricidal effects of natural six-carbon and nine-carbon aldehydes on stored-product mites
Experimental and Applied Acarology 44 (4), 315-321
Abstract: The toxicities of three plant volatiles, (2E)-hexenal, (2E, 6Z)-nonadienal and (2E)-nonenal, intermediate products of the oxylipin biosynthesis pathway, were tested on three mites of importance for medical purposes and as pests. The aldehydes were diluted in hexane separately and incorporated into diets in ranges of 4-143 mg g⁻¹. The final density of mites in control and aldehyde-enriched diets was compared after 21 days. The aldehydes were toxic to the mites, whose final density showed an inverse correlation with aldehyde concentration. In addition to the effects of aldehyde concentration, the final density of mites was also influenced by the different aldehydes tested and the interaction among aldehyde concentration and chemical structure. In a functional combination of aldehydes and species, the doses calculated for growth inhibition and eradication of mites ranged from 4 to 35 mg g⁻¹ and from 36 to 314 mg g⁻¹, respectively. Due to the protective role displayed by natural six-carbon and nine-carbon aldehydes, these compounds are potential candidates for controlling stored-product mites in stored food and feed products.
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Link to article at publishers website
Database assignments for author(s): Jan Hubert

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tyrophagus putrescentiae		Czech Republic
	Acarus siro		Czech Republic
	Aleuroglyphus ovatus