The essential oil of Illicium simonsii fruit was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 40 components of the essential oil were identified. The principal compounds in I. simonsii fruit essential oil were β-caryophyllene (10.30%), δ-cadinene (9.52%), methyl eugenol (8.94), β-elemene (5.84%), and α-amorphene (5.20%). The essential oi...

BACKGROUND The efficacy of essential oil of Chenopodium ambrosioides flowering aerial parts and its three main active ingredients was evaluated against Blattella germanica male adults. METHODS Composition of essential oil was determined by GC-MS. Topical application bioassay was used to evaluate contact toxicity of essential oil and three main components. Fumigant toxicity of essential oil an...

Background & Aim: The use of herbal extracts as safe and effective factors for eradicating of stores pests has attracted much attention. In this paper, the bio-effects of fumigation and repellent effects of essential oil of Eucalyptus globolus were investigated on red flour beetle. Experimental: In this study, the toxicity, fumigation and repellency contacts were assayed by topical ap...

Background & Aim: The use of herbal extracts as safe and effective factors for eradicating of stores pests has attracted much attention. In this paper, the bio-effects of fumigation and repellent effects of essential oil of Eucalyptus globolus were investigated on red flour beetle. Experimental: In this study, the toxicity, fumigation and repellency contacts were assayed by topical ap...

the two-spotted spider mite, tetranychus urticae koch, is a polyphagus pest which infests wide range of field, garden and greenhouse crops worldwide. pesticide applications against this pest have caused development of resistance, undesirable effects on non target organisms and environment and secondary pest outbreak. in recent years, herbal essential oils have received attention as natural plan...

essential oil extracted from the leaves of lemon verbena, lippia citriodora kunth (verbenaceae) was tested for fumigant toxicity in the laboratory against two stored-product insects tribolium confusum jacquelin du val and callosobruchus maculatus (f.). the chemical composition of the isolated oil was examined by gc-ms. the major compounds were citral (11.3%), limonene (10.6%), neral (7.9%), 4-p...

eucalyptus camaldulensis dehnh and callistemon viminalis (gaertn) essential oils were tested against adults (1-3 day old) of tribolium confusum jacquelin du val. in 280 ml glass vials either with or devoid of wheat grains. the oils were also examined for fumigant toxicity against, 5 and 20-day-old larvae. the essential oils were obtained through hydrodistillation, applying a modified clevenger ...

Water-distilled essential oil from the aerial parts of Dipsacus japonicus Miq. (Dipsacaceae) at the flowering stage was analysed by gas chromatography-mass spectrometry (GC-MS). Forty-six compounds, accounting for 96.76% of the total oil, were identified and the main compounds of the essential oil were linalool (11.78%), trans-geraniol (8.58%), 1,8-cineole (7.91%), beta-caryophyllene (5.58%), a...

Purpose: To investigate the chemical composition and insecticidal activity of the essential oil of the aerial parts of Paederia scandens against the maize weevil, Sitophilus zeamais. Methods: Steam distillation of the aerial parts of P. scandens was carried out using Clavenger apparatus in order to obtain the volatile oils. Gas chromatography/mass spectrometric (GC/MS) analyses (HP-5MS column) ...

The stable fly, Stomoxys calcitrans (L.), has been considered one of the most serious biting flies of confined and pastured livestock. The economic losses caused by the stable fly to the cattle industry in the United States exceed $2 billion annually. Current practices for managing stable flies using insecticides provide only marginal control. Insecticide resistance has also been recently repor...