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- Title
Bioatividade de óleos essenciais de sassafrás e eucalipto em cascudinho.
- Authors
Junior, Airton Rodrigues Pinto; de Carvalho, Ruy Inácio Neiva; Netto, Sylvio Pellico; Weber, Saulo Henrique; de Souza, Edilaine; Furiatti, Rui Scaramella
- Abstract
This research aimed to evaluate the sassafras (Ocotea odorifera) and eucalyptus (Eucalyptus viminalis) essential oils on the control of larvae and adults of lesser mealworm (Alphitobius diaperinus), comparing their insecticide potential. The essential oils were produced through water vapor extraction in a semi industrial scale. Contaminated paper filter technique was applied to evaluate the insect mortality. In the current experiment twelve concentrations were included for evaluation and among them one control (solvent) in order to settle the mortality rate and LC50 of the two tested essential oils. The larvae were more susceptible then the adults to sassafras essential oil exposure and less susceptible than the adults, when exposed to eucalypt essential oil. Larvae as well as adults of A. diaperinus were more susceptible to the sassafras (LC50 adults 0.26mL l-1 and larvae 0.12mL l-1) than the eucalyptus essential oil (LC50 adults 1.37mL l-1 and larvae 1.72mL l-1), by contact intoxication (Ocotea odorifera: Larvae y=3,3916+1,4699logx; Adult y=0,9486+2,8576logx; e Eucaliptus viminalis: Larvae y=1,3643+1,6254logx; Adult y=1,4487+1,6623logx). It is concluded that the essential oils of sassafras and eucalyptus can be used to control lesser mealworm and used as a new integrated strategy for management of this pest.
- Subjects
BRAZIL; ESSENTIAL oils; SASSAFRAS; LAURACEAE; EUCALYPTUS; MEAL worms; INSECTICIDES
- Publication
Ciência Rural, 2010, Vol 40, Issue 3, p637
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/S0103-84782010005000026